Pocket Hydrogen Fuel Cell

Horizon Fuel Cell Technologies has released a pocket sized refillable hydrogen fuel cell! It's designed to charge small devices on the go.  http://www.horizonfuelcell.com/store/minipak.htm $99? I think I have a birthday coming up... 

Posted by Culturespy 8 years ago


RadioWaved NaH2O hydrogen generator for fuelcell Vanguard Citicar

I am vaporizing saltwater and beaming focused radio waves to free hydrogen atoms that are collected by a small "cyclone" style vacuum cleaner and fed into a fuel cell that produces energy to my Vanguard Citicar (1975 electric car), the wave producer, the vacuum, and the battery bank. It fricking works!

Posted by kimos 10 years ago


hydrogen peroxide

I am wanting to make some sulphuric acid because it is on of the most useful acids around and i have ran into a problem. after you burn sulphur to create sulphur dioxide you then need a catalyst to form sulphur trioxide and then dissolve in water. which catalysts could be used and could you just let the sulphur dioxide dissolve in hydrogen peroxide (so2-----so3------h20--------h2so4 or so2 ------ h202---------h2so4).if this would work how could you get a large enough concentration of hydrogen peroxide?

Posted by dellboy 10 years ago


Hydrogen gas by combining electron- generating bacteria & small electrical charge...

Hi,Pennsylvania State University researchers last week announced that they have developed a method of producing hydrogen gas by combining electron-generating bacteria, acetic acid and less than .2 volt source in a microbial fuel cell. Info at this URL... http://afp.google.com/article/ALeqM5iXbROJgdF3_6BtG3TZFEs9hiw8CgI first heard about this last week on NPR's Talk of the Nation. Here is NPR link - http://www.npr.org/templates/story/story.php?storyId=16343702≻=emafThe researcher who led the project Bruce Logan, the director of the Hydrogen Energy Center there said last week on the show that this was actually a relatively simple process.He claims 90 percent efficiency. Also claimed is that the process produces 288 per cent more energy in hydrogen than the electrical energy that is added to the process.I would love to build one small scale and combine it with solar panels. Or maybe try to generate some hydrogen and try using it as a fuel supplement for my car using something like this - http://www.hydrogen-fuel.ca/ . Anyone willing to tackle this one?

Posted by nadsab 10 years ago


BioFuel: fuel cells of lesser god?

I was just reading one of the biochemistry articles I have, and noticed that urea, the main componant of urine, has an extra, and not so tightly bound hydrogen atom attached to it.   I am thinking renewable fuel cell fuel here, but other then smell, are there any other draw backs to using this?  I mean, I realize the salt content may or may not be a bit hard on metal parts etc. ..  Feed back welcome !

Posted by Goodhart 6 years ago


H202 production

Wondering if any one have come across a video showing the steps or know how to do this and how to extract H2O2 form the solution to make hydrogen peroxide like discribed from wikipedia article http://en.wikipedia.org/wiki/Hydrogen_peroxide#Manufacture i know i just cut and pasted to make it easer the history  barium peroxide with nitric acid. An improved version of this process used hydrochloric acid, followed by sulfuric acid to precipitate the barium sulfate byproduct.  Sodium peroxide also makes H2O2 Na2O2 + 2 H2O → 2 NaOH + H2O2 those are hard to come by for DIY and thought maybe this would easier  inorganic processes were used, employing the electrolysis of an aqueous solution of sulfuric acid or acidic ammonium bisulfate (NH4HSO4), followed by hydrolysis of the peroxodisulfate ((SO4)2)2− that is formed. peroxodisulfate commonly referred to as the persulfate ion

Posted by symboom 8 years ago


Any Way to Easily Obtain Deuterium?

I've had an interest in how physicists obtain deuterium for their experiments (especially those dealing with nuclear fusion).  I know it comes in small quantities in water, in the form of deuterium oxide ('heavy water') .  It also comes in the form of 'heavy methane' also.  I've looked at several patents dealing with extracting deuterium from such sources.  Is their any do-it-yourself (DIY) techniques that could use every day materials to obtain deuterium?

Posted by bigboy4006 7 years ago


aquiring 6% hydrogen peroxide

Were could i get 6% hydrogen peroxide

Posted by dogsrcool2me 11 years ago


Hydrogen

Hello I'm a new user would anyone like an instructable on how to produce hydrogen in your own home?

Posted by steven07 11 years ago


I almost drank Hydrogen Peroxide...

If I were to, what would happen?

Posted by Rock Soldier 9 years ago


Hydrogen as a fuel?

It's easy to separate hydrogen and oxygen from water. If you mix them together it doesn't become water until it is burnt. In theory you could make a water rocket from gases. But in reality...

Posted by Princess_Mellow 10 years ago


How to store hydrogen under pressure

I've made several hydrogen generators via electrolysis, but every time I failed to store the generated hydrogen under (some) pressure. In this-> http://www.youtube.com/watch?v=m9Q6gDKP2R0 video they used an emptied fire extinguiser to store the hydrogen. The only problem with this is that they use a chemical reaction to generate the hydrogen whereas I want to use a renewable source (electricity).  I have a compressor so I could use that to generate the pressure. Has anyone got any ideas on how I could store hydrogen under pressure? Thanks

Posted by selujtje 6 years ago


a good way to capture hydrogen and oxygen from electrolysis?

Well I've managed to actually seperate the hydrogen and oxygen from water, but I'm having alot of trouble capturing it. I want to capture the hydrogen and oxygen together, in one container. Anyone have any ideas? thanks, Joe  

Posted by thecoonskin 7 years ago


CO2 hydrogenation (CO2 + hydrogen = methanol) how to ?

I am wondering if methanol production (as a byproduct of CO2 and hydrogen) would be possible as diy project  . I have been reading about CO2 hydrogenation that (as topic mentioned) would lead to methanol production. Methanol would be easier to store than hydrogen ,no needing special equipment (refrigerated containers ). Anyone familiar with this ? http://en.wikipedia.org/wiki/Methanol One of the patents available: http://www.google.com/patents?id=mTI5AAAAEBAJ&pg;=PA7&dq;=co2+hydrogenation&hl;=en&ei;=J0PuTeT6KseD-wbZ_cX6Bw&sa;=X&oi;=book_result&ct;=result&resnum;=6&ved;=0CDIQ6AEwBQ#v=onepage&q;=co2%20hydrogenation&f;=false

Posted by gabdab 7 years ago


Hydrogen-powered plane carries human crew for first time.

The first manned, hydrogen-powered plane has been successfully tested in the skies above Spain, its makers say.The small, propeller-driven craft, developed by aviation giant Boeing, made three short flights at an airfield south of Madrid, the company said.It was powered by hydrogen fuel cells, which produce only heat and water as exhaust products.The tests could pave the way for a new generation of greener aircraft, the company said.Boeing's chief technology officer John Tracy said the flights were "a historical technological success" and "full of promises for a greener future".Small futureThree test flights of the two-seater aircraft took place in February and March at an airfield at Ocana, south of Madrid. The plane was modified to include a hybrid battery and fuel cell system used to power an electric motor coupled to a conventional propeller. Hydrogen-powered planes have been flown before, but never with a human pilot onboard.BBC Story

Posted by Kiteman 10 years ago


Burning Saltwater?

I found this article in class today, and thought it was pretty interesting. a scientist discovered that by exposing saltwater to radio waves, it weakens the bonds in the water, and the hydrogen can be burnt.http://www.engadget.com/2007/09/11/can-saltwater-be-burned-as-fuel/

Posted by its a lion 10 years ago


Hydrogen car to be Open Source

The manufacturer of a hydrogen car unveiled in London on Tuesday will make its designs available online so the cars can be built and improved locally.The Riversimple car can go 80km/hr (50mph) and travels 322km (200mi) per re-fuelling, with an efficiency equivalent to 300 miles to the gallon....The company will distribute the engineering designs to the 40 Fires foundation, a not-for-profit organisation that will make the designs "open source".The idea, they say, is to allow local manufacturing in small plants. This stands in contrast to the "economies of scale" that drive current plants to huge sizes and workforces.In addition, designs can be adjusted for local markets, using locally sourced parts or materials.The agreement will be such that if the designs are improved by a local manufacturer, those improvements will be sent back, so that what the company refers to as its "network of manufacturers" can contribute to the overall development of the product line.

Posted by Kiteman 9 years ago


Peltier Cells?

In the current make magazine issue #15 There is a project called the Seebeck Generator. I was wondering about the use of Peltier Cells. Can someone elaborate as to how they function? I mean can you get them in different sizes? Would different sizes effect the power output? If I took like 50 of them and somehow combined them could I get a higher yield? What if you used it in combination with something like Hydrogen? Ideally Hydrogen burns hot and if I had a large version of the Peltier Cell Could I use it to get a real power output? Possibly enough to power an electronic motor? Just some random thoughts the magazine sparked. Thanks, Jester

Posted by Jester_boy2 9 years ago


Dissolve Aluminum - Golden Book Chemistry

In the Golden Book of Chemistry, page 64, there're instructions for dissolving aluminum. The book states that HYDROGEN is released when aluminum strips are dissolved in hydrochloric acid and ALUMINUM CHLORIDE is formed. That's about all we get from the book concerning that particular experiment. Just wondering if this is correct, how to test it, what it should look like and what may we [the kids and myself] may do with it if it's actually aluminum chloride. It's a good book, but quite a bit of theory's lacking. Thanks all.

Posted by Sovereignty 6 years ago


Producing Hydrogen to Function as a Lift Gas

The short version: I want to make hydrogen to fill model airship envelopes with, because screw helium. Help me make a cheap electrolysis device that can do this in under an hour (ideally), or come up with an even better system for production. My immediate problem is that I need a high-surface electrode that won't fail in a solution of sodium hydroxide.The long version:I've devoted a fair portion of my time to contemplating airships, primarily because they're awesome. Fell out of use with the rise of much faster aircraft, and the technology its fate sealed by the extraordinarily bad rep the Hindenburg gave it. It is still far from useless, however, in that lighter-than-air systems can lay claim to flight times measured in days, and sometimes months, thanks to the fact that they literally float in the air like a boat floats in water.Their day may have come and gone, but I still want to experiment with the technology and create some model airships of my own. Helium works okay as a lifting gas, but it remains expensive and isn't going to get any cheaper in the foreseeable future. It is for this reason that I am pursuing hydrogen, in the hope that I might be able to produce a cheap lifting gas for my projects. Unfortunately for my aspirations, hydrogen is surprisingly hard to get cheaply in decent quantities. Here's what I've figured out so far.For one, it is absurdly hard to find sites that don't veer into fringe science when talking about hydrogen. HHO production, Joe cells, power your car with water...it all keeps cropping up, and not only does none of this do what I want, the concepts are often poorly documented or riddled with problems. However, I have been able to glean some information from my research. First off, one of the easiest methods (and the one I'll be pursuing the most) of hydrogen production is through electrolysis. For those of you unfamiliar with the concept, you can basically take two electrodes, stick them in water, add some electrolyte (like regular table salt), and apply a decent voltage. You'll get hydrogen gas streaming out of the negative electrode and oxygen out of the positive electrode. Fancier systems use large tanks, platinum electrodes, and a strong acid or base as the electrolyte. To increase efficiency (yeah, it's not 100% efficient), there is ongoing experimentation with high-temperature electrolysis and ongoing research into an effective electrocatalyst.Now, when I did my research, I thought "Hey! This sounds easy! I'll just set the system up like explained, and away we go!" Unfortunately, those exclamation marks were unwarranted. My first attempt showed that production is mind-numbingly slow with small electrodes. Using salt had the wonderful side-effect of producing chlorine and sodium hydroxide, a.k.a. caustic soda. It's called that for a reason, and I'm lucky I didn't run it too long or I might have a chemical burn now. Now I know. Choosing a good electrode turns out to be a problem too, as most conductors oxidize quickly or dissolve in the solution (now I know why everybody uses platinum when possible). My aluminum foil electrodes in a sodium hydroxide solution? Yeah, that didn't work AT ALL. I had better luck with steel mesh, but I recently found that it seems to fail over time too. The only thing that isn't disappointing is the container and the collection apparatus: an inverted plastic bottle with some airtight hose running off it, connected to a gas valve. If the bottle is placed such that forming gas causes the internal water level to be lower than the external container water level, the gas will be pushed through the hose (no pumping necessary!). There was one good thing I discovered, however. Apparently there was a bit of soap or something left over in the container, and I ended up forming a bit of explosive foam as well. The hydrogen foam blows up like nothing else, and the oxygen foam makes a loud pop and sends (slightly) caustic foam all over the place. Totally useless but still somewhat cool, so long as you're not fool enough to do it in large quantities.So, as of right now, I've got a good container and collection system, but my electrodes suck and production rates are so low that it'd take me hours and hours to inflate a good-sized balloon anyway. I'll be using sodium hydroxide in the future as the electrolyte, skipping the chlorine production and observing the proper safety procedures. My top priority is finding a good electrode, my next is finding a good way to increase surface area, and my last is getting a higher voltage source than the 12V power supply I had lying around. Any ideas?

Posted by Cognoscan 9 years ago


Car Runs on Home-Brew Hydrogen

BBC News are running an item about a car running on home-produced hydrogen.UK company ITM Power has produced a plastic film they claim is suitable for home electrolysis of water to produce hydrogen. The hydrogen (they say) can be used in the home, to be burned for cooking or heating, or to power a car (they are simply burning it, but it could supply a hydrogen fuel cell).As we have mentioned elsewhere on this site, current sources of hydrogen are not "green" (95% of current H2 supplies are manufactured from fossil fuels), but ITM say that their system is green because you aren't stopping at a filling station, you're generating your own hydrogen from the energy resource of your choice (maybe your own solar cells or wind turbine).Others, however, have questioned the wisdom of storing tanks of hydrogen at home.Whatever the application, if this new material is all that they claim, it could be a major step towards a true hydrogen society.BBC StoryITM Power

Posted by Kiteman 10 years ago


pee power: anyone here tried electrolysis of urine to produce hydrogen?

A few days back I read an article on this. just google.

Posted by huzefa 9 years ago


Ok a question for you science ponderers: The Honda Clarity; it is a hydrogen car, what do you think the impact will be to the envrionment?

Sure, it burns hydrogen and expels water (vapor).   IF this became the "car of the future" could we be possibly creating an over abundance of water on the planet (not that WE would notice, but our grandchildren might)?  What are your thoughts on this?  Honda Clarity  

Posted by Goodhart 7 years ago


The real gas guzzler: Car that turns hydrogen into electricity hits the road

Car that turns hydrogen into electricity hits the roadIntroducing the family car that runs on hydrogen and pumps out only pure water from its exhaust pipe.Honda's FCX Clarity is the world's first production hydrogen-powered 'fuel cell' car - with its own onboard power station which creates electricity to drive its motor.It has a range of 280 miles and a top speed of 100mph, yet emits no harmful pollution. And it is about to become the latest 'must-have' accessory for the Hollywood set wanting to show off their green credentials.Just the thing at a time when oil prices are rocketing to record highs. The only drawback? Finding somewhere to fill it up.The FCX is the result of nearly 20 years of research and many prototypes by the Japanese firm.It is being launched first in California where Governor Arnold Schwarzenegger has spearheaded the creation of a chain of hydrogen filling stations - as part of his environmental drive for cleaner cars. The first five customers include movie actress Jamie Lee Curtis. Honda claims the FCX offers three times better fuel efficiency than a traditional, petrol-powered car.The highly explosive lighter-than-air gas - which once kept the ill-fated Hindenburg airship in the air before its fiery end in the 1930s - is kept safely in a pressurised tank in the boot.Honda plans initially to produce about 70 of the eco-cars a year. They are initially available only to lease for around £300 a month including insurance - equivalent to a purchase price of £24,000.But Honda admits that the billions it has spent on research means that the true cost would be more like £1million per car.British motorists will have their first glimpse next month at the British International Motor Show in London's Docklands. Although there are price issues, its great to see there's development of this idea. I hope this sort of car is available for the "common man" at a "common price" soon.......

Posted by Keith-Kid 10 years ago


I volunteer to gather eyewitness info on water into hydrogen.

I'm a beginning engineering student and my dad is also an engineer. He is pretty skeptical and he recently told me of someone he knows who is using electrolysis to get better gas mileage in a Toyota pickup. I'm not sure, but it seems he is using secondary voltage to power the split and then burning it. He claims 60 mpg. If you guys would like to give me a series of questions/tests, I would love to go to my hometown and ask/perform them, then report back. Any takers?

Posted by bowakowa 11 years ago


Running motorbike on hydrogen

Where I've to connect the output of hho gas generator to my motorbike? I've no experience in mechanics, but I know is very simple to connect the hydrogen gas output tube to some part of my motorbike to run the motorbike on hho. The question is... where? If you answer to my that, I'll make an instructable about the process.

Posted by FelixSP 6 years ago


anybody using on demand hydrogen to heat hot water?

Hello all - I am interested in either converting an existing gas-fired hot water heater to burn homemade hydrogen gas, or building an on demand heater powered by same. Is anybody doing this? What are the issues, beyond safety of making your own highly flammable gas? lol... I am thinking jet/hole size on the gas burner ring for efficiency considerations, corrosion issues, etc..... THanks in advance... Matt

Posted by concreteblue 2 years ago


A new (and potentially real) way to produce hydrogen from water

A report in Science News today describes the results of an extremely detailed molecular simulation (full non-relativistic quantum mechanics) which shows how small clusters of (less than two dozen!) aluminum atoms can catalyze the dissociation of water into hydrogen with very high efficiency.  The paper has apparently been accepted by Physical Review Letters, but there's nothing up on arXiv :-( Before the alternative-energy fringe starts jumping up and down, the big roadblock to this mechanism is how to fabricate and distribute aluminum atomic clusters (called "superatoms" in the report; sigh...).  Making "nanoscale" (another annoying word...) clusters of atoms usually involves high temperatures and vacuum systems.   Together, those will consume substantially more energy than you recover from making and burning the hydrogen. However, if that roadblock can be overcome, then this does become a viable technology for fuel cells:  fill a tank with water, pour in a pouch (or bucket) of aluminum clusters (magic pixie dust :-), and hydrogen starts bubbling out.  It will be interesting to see how this shakes out Oh, and the simulation makes cool pictures, too!

Posted by kelseymh 8 years ago


Paper two stroke hydrogen engine

 Ok so I have this crazy idea to make a two stroke engine out of paper that runs on hydrogen and well ive allready built part of it just the piston head and cylider and stuff but if i lined the inside of the cylinder with tin foil would that be enoth to keep the paper from burning? and so ya anyways the engine of i have made allready is very sturdy each peace is 10 sheets of paper or more compressed for over 24 hours  now the compression im not two worried about because its more of the sheer pop of the explosion that will push the piston down well i guess thats how it is anyways but if the gas ignites anyways with oxygen why have compression  for this anyways because the explosion is going to be soooo small anyways that it wont really matter much.  the overall size of the engine is about almost 2" tall by about 1" wide on the widest part the bottom . So um I know by now im classified as "CRAZy" but that asside can i get some opinions and ideas plz. thanks MRN

Posted by mrn 8 years ago


Hydrogen for renewable energy storage- total system efficiency?

This is a question that has been bugging me for some time, especially since the questions about methanol synthesis revived my interest in energy storage. Say I have a wind turbine or solar panel or whatever, that produces 1000 Wh per day.  If I use that electricity to electrolyse water, store the generated hydrogen at roughly atmospheric pressure in an upside-down water butt or a big gas-tight bag in my shed (don't worry, I'm not going to actually do this) and then feed it into a generator converted to run on H2, what percentage of that initial energy input would I get back out?  20%?  5%? 1%? The follow-up questions to this are a) How does that compare against a battery bank? What about a similar DIY-style pumped water storage system? b) What one component of the system should be improved to raise the overall system efficiency? Electrolyser, storage, generator? c) Are there any other DIY-friendly methods for storing intermittently generated electricity that I'm not thinking of? And, I suppose, d) Does doing this and providing 5-10x your overall power requirements in wind turbines work out cheaper than spending thousands on batteries?

Posted by PKM 7 years ago


Generating a Couple of Watts Using Urine?

Hello, I recently came across a paper written by a researcher from a Scottish University about generating electricity directly from urine in a fuel cell and I was wondering if a larger version could be built to generate around 2 watts.  The power per square cm is around 1.5mW so even at 1mW I would need 2000 cm-sq so I think it would be easier to build a stack of cells instead of one or 2 large cells. I'd like to attach the paper but it's one which you need to pay for though I got it for free, could a moderator let me know what to do?  It was written by a Shanwen Tao and called 'A Direct Urea Fuel Cell' DOI: 10.1039/b924786f Another idea I had was to use a small PV setup to generate hydrogen from urine and then store the gas so that it can be used in a hydrogen fuel cell.  I've had some difficulty in trying a to find a cheap fuel cell but then I came across this page: http://www.mtmscientific.com/fuelcell.html Are there any really simple ways of building a fuel cell? I'm posting this here to see if anyone can help me come up with a viable design and maybe even build it for me.  I can pay you for your time and effort; though as a student I do have a tight budget to stick to. Any help, advice and ideas will be very much appreciated. Thank-You

Posted by jezym108 4 years ago


Electrolysis Materials

I have been looking at electrolysis a lot, and recently made one, but because I used copper wire it corroded straight away.  I have been looking at alternatives and titanium sticks out to me.  Currently cheap, $10 for 16 feet, and the conductivity is fairly good along with the corrosion resistance (high).  However, I haven't been able to find very much of anything stating that titanium works or doesn't.  Does anybody have any input, thanks!

Posted by Cody Heiser 3 years ago


Hydrogen Boosters for ICE's.

I've been reading quite a bit about hydrogen boosters for vehicle motors ( gas and diesel )on the internet. Seems like there's some debate about whether they are effective. They are a bit pricey. Does anyone know of any DIY plans to make such a booster?

Posted by CarlosCoyote 11 years ago


Toy company hired to arm US military

A gun that fires variable speed bullets and which can be set to kill, wound or just inflict a bruise is being built by a US toy manufacturer. The weapon is based on technology used to propel toy rockets.Lund and Company Invention, a toy design studio based near Chicago, makes toy rockets that are powered by burning hydrogen obtained by electrolysing water. Now the company is being funded by the US army to adapt the technology to fire bullets instead.Bruce Lund, the company's CEO, says the gun works by mixing a liquid or gaseous fuel with air in a combustion chamber behind the bullet. This determines the explosive capability of the propellant and consequently the velocity of the bullet as it leaves the gun. "Projectile velocity varies from non-lethal at 10 metres, to lethal at 100 metres or more, as desired," says Lund.The existing VWS design is a .50 calibre (12.7 mm) rifle weapon, but Lund says the technology can be scaled to any size, "handgun to Howitzer".Experts warn that fatal mistakes could be made in stressful situations, with angry soldiers turning the dial up on mobs, or forgetting to turn it up when confronted by a situation that requires a lethal response.Me, I think we're more likely to find all the secret Star Trek fans crawling out of the military woodwork, cries of set weapons to "stun", Number One echoing across the training grounds...As an aside, Lund are the people behind Tickle Me Elmo as well, which makes images of armies of armed Elmos marching towards a mob; Hee hee hee, this will tickle, hee hee hee!Article in New Scientist

Posted by Kiteman 10 years ago


A dangerous acid is in schools

I would like to start a poll here.Dihydrogen Monoxide is a dangerous acid that can kill in a multitude of simple ways. It is all over schools and I would like to know:Do you think it should be banned?pleases leave your comment in the appropriate area below, and at the end of the week, I'll tell you what it is. (and if you do know what it is, please don't spoil it) I would like to see your respinse before you research.======ANSWER======Ready?..................IT'S WATER!Dihydrogen mononoxide - H2O , water.Some students at ATM University sent around a research study and a poll and around 80% of the student population voted to ban it. This is an interesting effect of how ingnorance can have a significant affect on life. Moral: DO THE RESEARCH!

Posted by gimmelotsarobots 9 years ago


HHO bike

Today i try to run a motorbike by hho gas wow its amazing https://www.instructables.com/id/HHO-Hydrogen-Generator/

Posted by rasel88 10 months ago


chemicals that expand when mixed

Can you guys give me a list of some chemicals that expand when mixed? the reaction's can't be combustion reactions though. that's the only limiting factor.

Posted by mexx.admin 9 years ago


THE BEST FUEL

Hello I am looking for the most accessible, cheapest, hottest burning, most efficient fuel and maybe even environmentally friendly. And what would be already in my house(and NO I AM NOT MODIFYING MY NATURAL GAS PIPES).So post what you think. I usually burn fuels in those little pop can stoves, and in my pyrotechnics. Thats Not My Stove. But Its VERY similar.

Posted by littlechef37 10 years ago


Fake project

Https://www.instructables.com/id/Distill-Hydrogen-Peroxide/

Posted by eric m 9 years ago


Hydrogen Generators

Does anyone know how to test for output quantity of HHO gas from a Hydrogen Generator when connected to a vacuum such as your intake manifold? The output is easy to test when just checking with a submerged bottle with the generator running on its own without being hooked to a vacuum source. The generator will put out substantially more volume under vacuum than when not. How do you check for output volume when under vacuum? Pylgram

Posted by Pylgram 10 years ago


Fuel Cell Projects for The Evil Genius :-(

For my birthday I asked for (and got) the book Fuel Cell Projects for the Evil Genius. At first I liked it a lot. It had good information, and some really cool looking projects.What I started to realize though is that many of the instructions for many of the projects just say to go out and buy something from the author's store. The entire instruction for the Desktop Hydrogen storage unit was 2 pictures and a link to his store. This really made me sad. I bought this book because I don't really have the budget to go out and buy a lot of premade stuff.Has anyone else bought this book, or does anyone else have any thoughts about this?

Posted by Gjdj3 9 years ago


My school project

Just thought i'd let the instructables community know why I haven't been around foe a fair while. Well, mainly because it's getting near exam time, so I'm being a good little student and studying hard. Also, another reason is my best school project EVER!!!!!See, i'm involved in an extended program at my school, called open doors. We get to choose something that interests us, research it, and build it!!!We are building a HHO generator, running a lawnmower off it, then hopefully a small car!!!You can follow our progress here:http://terminator8000rpm.blogspot.com/

Posted by Da_Fudge 9 years ago


How to get liquid gases like hydrogen, xenon, etc.

Come on people, not all of us can snap our fingers and get liquid nitrogen for various purposes. HELP US! give us a link or something, fellow robots, blokes, etc.

Posted by szechuan53 10 years ago


plastic bottle hydrogen bomb ?

Alright what the image depicts is a plastic bottle with two holes in its cap for two wires. The holes are then caulked hot glued etc. to be waterproof. Then you open up the bottle and fill up with water almost to top [farther than in picture]. Then you hook up wires to a battery. What will happen when you do this?A no more room for hydrogen bubbles bottle expands blows upB hydrogen bubbles find a way out C utter failureI have been thinking this over if anyone out there is good at science outhere please help. Also if this does work it would be an awesome time bomb. PS i couldn't figure out how to add notes i use firefox please help.

Posted by thejrb 11 years ago


International zero-emmission motorsports

The world's first international hydrogen-powered motorsport race was held in Rotterdam this weekend.Dubbed the Formula Zero championship, the contest pitted teams from five countries against each other in a zero-emissions go-kart race.Each team's entry was powered by a commercial fuel cell that produces electricity from hydrogen. It may be small-scale, with only six teams entering go-kart sized vehicles, but Formula Zero is an officially-recognised motorsport, with plans for scaling up to Formula Three and the Formula One style and speeds."In 10 years if the motorsport industry as a whole hasn't engaged in zero or low emission principles, it probably won't be around," said Greg Offer, who headed up the Imperial College London team. "Teams that embrace this new technology early on will succeed, and those that don't will fall by the wayside."Racing excitement won't suffer, though; Dr. Offer says that fuel-cell powered vehicles don't represent a compromise in performance over traditional petrol-fuelled engines.'"With a combustion engine, you have to reach three or four thousand revs to get your peak power," he says. "With an electric vehicle, it's all there from standing, and they're more efficient." The next races are planned for the US in March 2009. Plenty of time to get your own entry built.Imperial TeamFormula Zero homepageBBC news article

Posted by Kiteman 9 years ago


How do I collect the oxygen from the reaction of hydrogen peroxide and manganese dioxide?

I believe that the reaction between the black, powdery manganese dioxide found within carbon-zinc batteries, and household-variety hydrogen peroxide produces oxygen. However, it is my understanding that oxygen is heavier than air, and will therefore that collecting the gas will not be as simple a matter as seen in steven07's Instructable on producing and collecting hydrogen.Unless I'm completely wrong, and a reaction that produces oxygen will inflate the balloon. :POr, does anyone else have another way of collecting the gas?

Posted by carbon 11 years ago


Fake project

THERE IS A FAKE PROJECT called destilling hydrogen peroxide with salt. it's fake. why it still up?

Posted by eric m 9 years ago


Checking Theories

In this topic, place your theories of some chemistry experiments in the comments section, starting with this one. To start with, Fe + 2H2O --> FeO2 + 2H...Place iron fillings to fill 1/3 of a water bottle. Fill the rest with water, and place a balloon on top. Wait X days/weeks/months. The water reacts with the iron to extract the oxygen from the water, leaving only hydrogen, and rust in the products. In the reactants, the hydrogen was bonded to the oxygen.Will someone tell me if this works? The energy that bonds this is the potential energy in the water.

Posted by PKTraceur 9 years ago


If i post this instructable, will it be taken down?

I'm planning to put "How to rapidly produce hydrogen gas (faster than electrolysis)"

Posted by IlluminatedAntichrist 11 years ago


Experiment: Use of Hydrogen Peroxide to induce root formation in plant cuttings

I decided to try an experiment to see if dilute concentrations of hydrogen peroxide could promote root formation in cuttings. A rack of twenty test tubes was set up in the first distilled water the second a 1/100 solution of 3% h2o2 third 1/50 solution of 3% h2o2 fourth 1/25 solution of 3% h2o2 and fifth 1/12.5 solution of 3%h2o2 We see in this image taken after one week that only the control has started growing roots. Conclusion, H2O2 does not induce rooting of cuttings.

Posted by Tool Using Animal 10 years ago