Electrolysis: Producing hydrogen from water
HTML-код
- Опубликовано: 10 окт 2024
- OMV Blog: blog.omv.com/en...
Producing hydrogen from water: Electrolysis involves splitting water into hydrogen and oxygen with the help of electricity. When a direct current is passed through the water, oxygen appears at the positive anodes, while hydrogen is released from the negative cathodes. In terms of volume, exactly two times more hydrogen is produced than oxygen.
As pure water is not a good conductor of electricity, something like salt is added - not a very environmentally sound method. If you use a proton exchange membrane, PEM for short, it is possible to extract hydrogen from pure water, as the membrane provides the necessary particle transport between anodes and cathodes.
--- Note: As of June 13, 2017 Petrol Ofisi A.S. is no longer part of OMV Group.
------------------------------------------------------------
Subscribe to the OMV RUclips Channel: / omv
Follow our Blog: blog.omv.com
Follow us on LinkedIn: / omv
Follow us on Twitter: / omv
Follow us on XING: www.xing.com/co...
Follow us on Facebook: www.omv.com/por...
Although brief, the video shows clearly that H+ is formed in the anode and then transformed into H2 in cathode. The video also shows that H+ can be translated from one electrode to another through a proton exchange membrane. Very nice!
Where did I leave my Proton Exchange Membrane at?
Talk more about the Membrane materials, or semi conduct electrical
Thanks for making this video I'm watching this a night before my exam and I'm feeling so relaxed to answer the questions which will be about electrolysis tomorrow . This video has helped me a lot even if I don't open my book I can still answer the questions in my own words and get full marks. Thanks buddy👍🏻
- Std 9 student
Thank you for your feedback and good luck with the exam.
How did the exam go?
Hi OMV,
Thanks for the good presentation and video! Me and my school project teammates are using this for research.
Stan Meyer look him up
@@rf5381 will do, thank you for the recommendation
How did it go.
@@kesaya3806 be careful when handling hydrogen gas it eill easily cause explosions
So, if I wanted to set up a hydrogen extraction rig in my backyard using rainwater, I wouldn't need a filter, because the impurities would actually help?
If you like breathing clorine gas then yeaj.
Why would he be breathing it? I guess he shouldn't stick it up his butt either?@@RipskyOfficials
@@RipskyOfficials well you can collect and liquify it and selling it, potentially increasing your income
Nice presentation thank you.
What kind of anode and cathode is used in electrolysis
Hi Keerthana,
important criterias for water electrolyzer electrode materials are stability and production efficiency. Two examples: Very common electrode materials for proton exchange membrane electrolyzers (PEM) are sintered metals such as titanium, coated or dotted with catalyst such as platinum (cathode) and oxides of ruthenium or iridium (anode). Electrodes for solid oxide electrolyzer cells (SOEC) are based on ceramic materials. .
So the choice of electrode materials (for anodes as well as cathodes) used within a water electrolyzer is also depending on the electrolyzer technology. As electrolyzers are ongoing subject of technical development and further optimization (“stack efficiency”), the used range of electrode materials and compositions may be even broader in future applications.
@@omv Is it as complex as it is for generality or complexity is only for efficiency?
@@omvit’s not as technical as you are making it sound, stainless steel plates work great as long as you have a catalyst to aid in the separation, it will produce as much as you need. The scale at which you build determines the amount you can produce. The more electricity and plates you have, the more you can produce.
What makes the addition of salt not environmentally friendly?
Hello Paul Sunday,
The electrolysis of salty water (water with dissolved sodium chloride) is historically amongst the most renowned electrolysis principles in mankind- and still has its well justified industrial purpose.
It leads to the formation of sodium hydroxide (diluted in water) as well as gaseous chlorine (at the anode) and hydrogen (at the cathode). Wherever chlorine and sodium hydroxide may find their industrial use case (along the entire chemical value chain, e.g. from PVC floors and vinyl discs to pharmaceuticals) this principle is a perfect match.
But, if the hydrogen demand is larger than the chlorine demand (or sodium hydroxide demand) or an industry is interested in valorization of hydrogen only, this production pathway is neither economical nor ecological efficient. Furthermore, it is of utmost importance to avoid misallocation of the accruing byproducts into the environment.
So for state of the art water electrolysis use cases with a focus on hydrogen valorization only, electrolysis principles of choice only emit highly pure oxygen as a byproduct which can be released to the environment (e.g. such as a PEM).
@@omv I was wondering the same, and then I found this good and detailed answer. Keep up the good work!
I discovered with a rusted nail that backing soda that hydrogen molecules would turn baking soda yellow in water and a battery attached to the rusted nail. The water was blue to to only oxygen in the water.
I forgot to mention I microwaved the water and backing soda with oxidized or in this case hydrogen iron particles. The backing soda stayed hot for ever didn't ever seem to cool down.
More salt water than not. How much energy is used to extract 1kg of hydrogen from the equivalent water(9liters)?
Hello, thank you for your comment. We apologize for any inconvenience, but we are unable to provide details about the energy consumption of the individual products.
We use this with polymer injection before a DAF to skim oil and separate from water to reuse for steam injection on wells and recycle the oil
Nice work. have a question how can we separate high salts or reduce salts from water and make pure h2o through electrolysis ? Regards
Water electrolysis is the splitting of the water molecule into its elements- Hydrogen and Oxygen. Water used for electrolysis is pretreated and purified by means of e.g. reverse osmosis or ion exchange resins prior entering the electrolysis cell. Within this water pretreatment, impurities such as salts are eliminated from water.
You don’t you already have pure water
So if pure or distilled does not conduct electricity then how is the hydrogen split from the water. It is the electrolyte that is being broken down and not water.
What! NaCl provides vacant orbitals for electrons to jump.That facilitates water to split.
Can you prove what you are saying.? Can you prove the existence of atoms.Water is an element in itself. It cannot be broken into constituent elements.
soA your reply invalidates your 1st comment and make you look like a flat earther.
Can you prove the earth is a spinning ball moving through 'the milkyway' over a million miles an hour.
@@Pseud0nymTXT There is no hydrogen and oxygen in water. The gases originate from the electrolyte and/or electrodes. soA is correct in stating that water breaks matter down. Water cannot be broken down, only change from one state of existence to another e.g. solid water in the form of ice to liquid water. Oh and btw, the earth is flat!! Your globe earth education is far from reality!!
Nice explanation 👍
boil water, what am I a chemist xd
Why need to add salt cant we use sea water directly?
Ikr
@Yann cedric Totsingan Ooh okay
true
Electrolysis was found to be the major technique of hydrogen production from sea water.
You can also watch from here about the new green and environment sustainable technologies for Green Hydrogen Production in a very interesting way.The future fuel ruclips.net/video/_FzIUHkKmLS/видео.html ruclips.net/video/_FzIUHkKmLs/видео.html
That would be 'environmentally unfriendly' (rolls eyes)
What are Proton Exchange Membranes typically made of, in the simplest terms?
thank you !!!! Have fun in your life
Mam one question,
If we add salt to the water it turns brine solution right? then Chlorine gas is evolved right?
That was not a real woman.
But how can hydrogen ion and oxygen ion be further converted into hydrogen and oxygen molecules ?
Hello Akshay Singla,
particularly, these reactions are called Hydrogen Evolution Reaction (HER) and Oxygen Evolution Reaction (OER)
At the Anode, water is oxidized via the oxygen evolution reaction (OER): H2O → 2 H+ 0,5 O2 + 2 e-
At the Cathode, protons are reduced to hydrogen via the hydrogen evolution reaction (HER): 2 H+ + 2 e-→ H2
@@omv what's the mean of oxidized?
It’s simply balancing it. Two electrons are introduced to remove the +2 charge on the H. 2H^+ + 2e- > H2, a pure gaseous molecule.
Perfect ratio for boom.
Thanks for video. Is sea water able to be used?
Salty water could lead to a creation of toxic gases (e.b. CI2), which is avoided by using water without salt.
@@omv how about mineral water?
Mineral water could not be used as it is carbonated
your own video says to use salt.@@omv
What impact would using saltinated water to make hydrogen water?
The electrolysis of salty water (water with dissolved sodium chloride) is historically amongst the most renowned electrolysis principles in mankind- and still has its well justified industrial purpose. It leads to the formation of sodium hydroxide (diluted in water) as well as gaseous chlorine (at the anode) and hydrogen (at the cathode). Wherever chlorine and sodium hydroxide may find their industrial use case (along the entire chemical value chain, e.g. from PVC floors and vinyl discs to pharmaceuticals) this principle is a perfect match.
But, if the hydrogen demand is larger than the chlorine demand (or sodium hydroxide demand) or an industry is interested in valorization of hydrogen only, this production pathway is neither economical nor ecological efficient. Furthermore, it is of utmost importance to avoid misallocation of the accruing byproducts into the environment.
So for state of the art water electrolysis use cases with a focus on hydrogen valorization only, electrolysis principles of choice only emit highly pure oxygen as a byproduct which can be released to the environment (e.g. such as a PEM).
@@omv interesting
Thank you
Nice video 👍
Thanks for the video
Hello I am curious about the left over water after all the oxygen and hydrogen is zapped out... What happens to the left over water
That's what I want to know too. Like the byproduct of taking the hydrogen out?
The clip explains the electrolysis process just in a schematic way. Focus is to show the process of separation of hydrogen and oxygen.
There is no 'left over'. Water IS simply H2O. Two parts hydrogen, one part oxygen. The only thing 'left' would be whatever impurities were in the water.
can i use this presentation in my future video on youtube ?
Hi Moroccan, sure, go ahead. But in your future video, please make clear that the part is from OMV.
@@omv yeah, i gave u credits in the video and the description.
May I incorporate part of this video to illustrate the H2 production on a video related to H2 motor? is it copyright free>
You may use parts of the video as long as you list the source. Please note that we do not approve any changes or adaptions to the original material.
i want to do some animations like this, someone know which software could i use?
Adobe Animate
Has a steep learning curve though...
Adobe illustrator to draw shapes and vectors and adobe after effect to do animation
Why hasn't anyone made an engine to run on that so we don't have to run on fossil fuels
Development is needs-based. We are monitoring market developments - the number or new registrations of hydrogen-powered cars is manageable - details can be found here: www.statistics.at/statistics/tourismus-und-verkehr/fahrzeugen/kfz-neuzulassen
They did in the early 90’s and was never heard of again 💀
Storage. Longer chains (petrol) produces more energy and requires lesser space. It would be interesting to see a water tank as large as a house to run your car though.
The powers that be haven't found a way to monetize it. Like what JP Morgan did to Tesla. Financial System permits evil to exist.
I’m Working on it rn as a project😎
nicely done
How much amount of electricity need to this process?
Hello, thank you for your comment. We apologize for any inconvenience, but we are unable to provide details about the energy consumption of the individual products.
若水的動力可作能源，人力也可……
Wait why is salt bad? How many things am I really supposed to worry about?
Depending on which salt is used, the chemical reaction could lead to the creation of toxic gases (e.g. Cl2), which could be avoided, if no salt is used.
But your own video says to use it. @@omv
thanks
So, If I extract pure water by using distillation that means I can break them only using a Battery??
Unfortunately, that is not possible. On the one hand, distillation is not part of the electrolysis process and on the other hand, in addition to electricity, electrodes and an electrolyte are also necessary to split up water into hydrogen and oxygen.
What is a good p.e.m. source?
Here explained : ruclips.net/video/_FzIUHkKmLs/видео.html You can also watch from here about the new green and environment sustainable technologies for Green Hydrogen Production in a very interesting way.The future fuel ruclips.net/video/_FzIUHkKmLs/видео.html ruclips.net/video/_FzIUHkKmLs/видео.html
I will make a hydrogen fueled engine. Imagine a car fueled by water.
Search Stanley Meyer and JCB Hydrogen Combustion Engine Truck
No hydrogen in water, no oxygen either.
Best way to use excess renewable energy to make hydrogen gas to burn later when needed (My opinion).
But how to capture hydrogen gas
@@proykemrscthcmc The hydrogen ions (+) go to the negative terminal while the oxygen ions (-) go to the positive terminal. Electricity is used to ionized the water molecules.
@@michaelanderson3096 yes but where to store this hydrogen gas
@@proykemrscthcmc Cyclinders just like how methane 😲 is stored.
I mean the hydrogen cars will run on hydrogen rite and its hard to store hydrogen , so instead of hydrogen why not put water in the tank and use this method to extract hydrogen and use the hydrogen for combustion and release the oxygen in the atmosphere. I sounds good but im sure its gonna be a difficult thing to achieve. But its my though❤
Using hydrogen peroxide?
Correct salts and water and hyrdrogen .
How much this process takes
The process achieves an efficiency above 70%
Completely unrelated and useless(i skip science class) but can we run out of water if we electrolyze all water...
If you electrolyze ALL of it? Then yes.
That is how you make a water powered engine
And get yourself 6 feet under after a visit from certain people . 😂
Yeah Joe Biden's boys will come for you.@@zacx6970
H2O Not H2O2
Oxygen is not stable as just O, Oxygen gas is O2. The full reaction would be 2(H2O) -> 4(H2) + (O2), but some people might just divide by 2 and say H2O -> 2H2 + O
In french please
fistonnnnnnnnnn
HYSR SunHydrogen!
Quintillion and quintillion dollars business in hydrogen fuel cell technology will be available on earth definitely use for quintillion and quintillion years
❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤❤
Everyone love taking shower and waste water should not be waste so drive your cars with your waste water and save the earth from sophisticated of your smell
Try not to build an engine by using this method unless you want attention at the C.I.A
Search JCB Hydrogen Combustion Engine Truck
Water is more expensive, is a life. Hydrogen bulshit.
Reverse it
Blast probably
One cannot split water into hydrogen and oxygen because there is NO hydrogen and oxygen in water. Water is simply water. The gases derive from the electrolyte and/or electrodes, not the water!!
Water is hydrogen and oxygen...H2O. Two atoms of hydrogen and one of oxygen.
@@jenniferallred4242 well thank you for your opinion jennifer - have you any proof to support your view?
@@PeterPete yes researchers found out this hundreds of years ago, it is basic common knowledge that water is hydrogen and oxygen. Most 5th graders know this.
@@smoothtrunkfish9930 well thank you for your opinion - have you any proof to support your view?
@@PeterPete do you have any to support yours? I have not received evidence from your side ok why you don't believe in basic chemistry. Where did you learn or come up with the idea that water is not hydrogen and oxygen?
How the fuck is salt not an environmentally sound method? The oceans are pretty much water and salt.