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This material originated from the article Hydrogen economy. KarenAnn 17:08, 1 June 2006 (UTC)
this is quite incorrect and needs deletion or serius change, if aluminum is consumed it is not catalyst and whole process is just usual chemical reaction. it is impossible to generate hydrogen with any catalyst without temperature gradient because that violates laws of thermodynamic. also same effect can be achieved using aluminum amalgam instead of nanoparticles —Preceding unsigned comment added by 78.61.66.75 ( talk) 22:37, 27 November 2009 (UTC)
In the "chemical production" section it shows the overall equation Al + H2O → Al(OH)3 + 3H2. Does anyone know what they do with the leftover Aluminium hydroxide? Armadillo1985 ( talk) 04:15, 30 September 2008 (UTC) Melt it, then electrolyze back to aluminium or throw out. —Preceding unsigned comment added by 78.61.66.75 ( talk) 22:32, 27 November 2009 (UTC)
This process goes well when accompanied by KOH or NaOH. In the presence of water and abundant heat it produces good amounts of hydrogen. — Preceding unsigned comment added by 89.75.41.170 ( talk) 16:33, 7 October 2015 (UTC)
Normally one who talks about Hydrogen production refers to the process of generating hydrogen in large quantities so that it could meet the need of industrial practices, but this "chemical production" mainly introduces a storage method of hydrogen. I understand it is actually the process of hydrogen production, but isn't it a bit different from other methods? Like using bacteria, heat or electricity? I mean maybe it is better to be put in another category. Dcbayer04 ( talk) 12:32, 25 August 2008 (UTC)
Well organized! That's what a Table of Contents should look like ideally. Maybe a Conclusion section would be good. Just a few sentences summing it up. KarenAnn 00:18, 5 June 2006 (UTC)
Water purification is not a method of hydrogen production. I've deleted again. -- Pjacobi 18:03, 5 September 2006 (UTC) I fixed the category text:
And you have to purify the water. Mion 20:44, 5 September 2006 (UTC)
I didn.t say it is a method, but if you talk about hydrogen production from water the first step is the purification of water. Mion 08:18, 6 September 2006 (UTC)
yes, for conductivity, but certain elements have to be removed, i think its better to include when waterpurification is used and when not, and where is the section about hydrogen purification ? Mion 08:52, 6 September 2006 (UTC)
The waterpurification should be under electrolysis tp prevent the misconception that it is a method. Mion 08:57, 6 September 2006 (UTC)
Photoelectrochemical cell. Mion 04:57, 11 September 2006 (UTC)
I have heard of using surface uranium for extraction. I am sorry but i dont remember where, but the idea was that if you found an area with high amounts of radon, you would be able to extract hydrogen from water due to nuclear decay. —Preceding unsigned comment added by 74.78.78.201 ( talk) 02:18, 18 October 2007 (UTC)
As I already mentioned in Talk:Hydrogen_economy, Jerry Woodall, a researcher in Purdue Discovery Park, has made an interesting discovery. The article describes a chemical process in which water reacts with aluminum, the latter effectively stripping water molecules of their oxygen and freeing hydrogen. The gallium prevents formation of aluminum oxide film which would stop the continuous reaction. The reaction takes place until either aluminum or water runs out. More informative description of the process can be found in a Flash-based presentation Woodall has compiled. Does anyone have more information and any thoughts if this should be included in the article? -- Khokkanen 19:43, 1 September 2007 (UTC)
and now someone put that in the nanotecnolody section as another method. —Preceding unsigned comment added by 78.61.66.75 ( talk) 22:40, 27 November 2009 (UTC)
The folks discussing John Kanzius are proposing that content be merged into Hydrogen_production.
The problem here is that it is not clear what Kanzius is claiming.
Is he or is he not claiming that he gets more energy out than the RF input?
If yes: then it appears a water as fuel proposal
If no: then he is apparently claming a highly efficient method of producing hydrogen.
Which is it?
Kaznius himself is not making any public comments, he does not even have a web site. The statements reported and attributed to him have been contradictory.
Meanwhile, his strongest supporter so far, Dr. Rustum Roy, states (as of 13th Sept 2007):
"He has not made any attempt as far as we know to obtain the data regarding the energy balance between input and output." http://www.rustumroy.com/response_to_email.htm
The problem here is complete absence of data on the input and output energy numbers for the process. It is puzzling as to why this is being kept so secret..... I can understand secrecy about HOW it is done, but secrecy as to WHAT has been done makes no sense. Charles 15:29, 16 September 2007 (UTC)
according to experiment video he simply made plasma flame using rf energy source. there is no any hydrogen collencted anywhere. if he at least could collnet hydrogen intead of igniting it then it could be at least soem way of production, but once he cannot store it that is not "production" in any case —Preceding unsigned comment added by 78.61.66.75 ( talk) 20:16, 27 November 2009 (UTC)
From the article:
What year was hydrogen first produced on an industrial scale? By who? Trekphiler ( talk) 19:25, 23 June 2008 (UTC)
Why doesn't this page mention anything about hydrogen being obtained by reacting metals and acids? metal + acid = salt + hydrogen
220.253.62.89 ( talk) 15:58, 7 July 2008 (UTC)
Does anyone know about photo-chemical splitting of water? Basically, the reaction happens you mix a transition-metal catalyst with water and shine light on the solution. I vaguely remember hearing them talk about using Rhodium or Rutherfordium but I'm not sure.
I'll start doing some research myself in case no one else has heard of it. Here is an example [1] of what I'm talking about: Armadillo1985 ( talk) 06:45, 30 September 2008 (UTC)
A Hydrogen Production Breakthrough [January 27, 2009 |
A. Welford Castleman Jr., Eberly Family Distinguished Chair in Science and Evan Pugh Professor in the Penn State Departments of Chemistry and Physics and Penn State graduate students Patrick Roach and Hunter Woodward and Virginia Commonwealth University Professor of Physics Shiv Khanna and postdoctoral associate Arthur Reber announced a discovery to produce hydrogen from water by exposing selected active sites of aluminum atoms on a nanoscaled aluminum cluster.
The study paper was published in the 23 January 2009 issue of the journal Science and was funded and supported by the Air Force Office of Scientific Research.
Mike D ( talk) 15:26, 31 January 2009 (UTC)
Can someone write what the "Steam-iron" process for producing hydrogen is? It's probably one of the things already listed in the article, just not referenced by that name. 146.115.34.7 ( talk) 10:52, 14 April 2009 (UTC)
Relatedly, can someone write (or reference the best theory) of how hydrogen vents in Iceland produce hydrogen? 146.115.34.7 ( talk) 10:52, 14 April 2009 (UTC)
Synthetic biology too is coming up with hydrogen production methods. However, at present it has not yet produced a viable organic hydrogen generator. [1] [2] [3] —Preceding unsigned comment added by 81.246.167.92 ( talk) 10:59, 17 April 2009 (UTC)
add in article
References
it is stated that hydrogen can also be made by reforming fuel. This is also possible on-board of vehicles. Not sure whether there are emissions; think so
see http://www.h2net.org.uk/PDFs/RN_1/HydrogenMLW.pdf —Preceding unsigned comment added by 81.246.162.118 ( talk) 09:08, 30 April 2009 (UTC)
I added this in the 'From water' - http://en.wikipedia.org/wiki/Hydrogen_production#Decomposition_of_Water_by_Radiowaves. Please review. Could not find reviews of the efficiency, doubtful if any have been published yet. Regardless of efficiency, it seems to work, at least in North America. Could not obtain a copy of http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=4651925 - they seemed successful, but hard to say from the abstract if its related. Casimirpo ( talk) 01:51, 17 June 2009 (UTC)
This is definetely hoax because no hydrogen is stored. in best case it can fall under thermal dissociation —Preceding unsigned comment added by 78.61.66.75 ( talk) 22:29, 27 November 2009 (UTC)
Using radiofrequency radiation it is possible to produce hydrogen from water-salt solutions (NaCl-H20) and seawater by chemical decomposition.
When exposed to a polarized radiofrequency beam at 13.56 MHz at room temperature, NaCl–H2O solutions of concentrations ranging from 1 to 30% generate an intimate mixture of hydrogen and oxygen.
Radiofrequency radiation makes sodium ions in saltwater-solution vibrate, and due to van der Waals force the oxygen atoms of water molecules will also vibrate, resulting in separation of hydrogen and oxygen atoms.
Whether this novel method is economically competitive is yet to be resolved. This method of separating hydrogen and oxygen from water was discovered in 2007 by John Kanzius experimenting with water desalinization, and it was first confirmed by Penn State research group lead by Professor Rustum Roy. Observations of polarised RF radiation catalysis of dissociation of H2O–NaCl solutions, R. Roy, M. L. Rao and J. Kanzius, originally published in Materials Research Innovations, 12, 3-6. Salt water burning video by WKYC-TV September 2007 at Penn State University
Here are the mehtods listed by Ullmann's Encyclopedia, which tends to be very thorough: 4.1. Production from Coal and Hydrocarbons 4.2. Electrolysis 4.3. Thermochemical Water Cleavage 4.4. Other Methods for the Cleavage of Water What is missing in terms of methods that are really useful is the oxidation of hydrocarbons. Heavy residua containing lots of sulfur are oxidized to give H2.
The large section about Al being a hydrogen source is misleading and the length and referencing is disproportionate. I feel bad just throwing that part away, but it is nearly criminal to suggest that Al is a source of H2.-- Smokefoot ( talk) 23:41, 6 December 2009 (UTC)
How does this project work: http://arpa-e.energy.gov/FundedProjects.aspx (ARPA-E Affordable Energy from Water and Sunlight project) —Preceding unsigned comment added by 91.176.8.225 ( talk) 10:45, 4 February 2010 (UTC)
Under Chemical production, we see this: "(1) Al + 3 H2O + NaOH → NaAl(OH)4 + 1.5 H2 (2) NaAl(OH)4 → NaOH + Al(OH)3 "
This may be an extremely stupid question, but shouldn't a truely balanced equation not have a fractional coefficient? And also, when you have 3H2O on the left, doesn't that mean that it will result in 6 hydrogens on the right, therefore a coefficient of 3? And also, we've somehow gone from having only one hydroxide(OH) on the left to having 4 on the right - how? (this is all for the 1st equation)
Again, possibly a stupid question - it's been years since I took chemistry. Thanks! —Preceding unsigned comment added by 24.148.170.51 ( talk) 02:13, 9 February 2010 (UTC)
Perhaps that, besides Daniel Nocera's system, the solar reactor too could be mentioned 91.182.139.124 ( talk) 14:42, 13 January 2011 (UTC)
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Dear editor(s), You have quite a task at hand because things have not stood still. I am only a layperson but sort of keep an eye on this topic. Someone who has more understanding than me please explore:
1. University of New South Wales+hydrogen production from ocean water with solar/wind
2. Toyota Melbourne (Australia) is getting involved in this after Australia's CSIRO developed a method to store hydrogen as ammonia (NH3) and invented a process (with a metal filter?) to use the hydrogen for burning, i.e. transport and electricity. There was talk about mobile refuelling stations, in the beginning. Refuelling with hydrogen is said to be as quick as with petrol.
3. Tokyo Olympic village is to run on hydrogen.
4. There is some pilot plant in Port Lincoln, South Australia
Someone who understands these things better than me should, please, check these things and update the page. 2001:8003:A02F:F400:3D7D:186:A6DA:4CD0 ( talk) 00:01, 23 October 2019 (UTC)
The section has two definitions of PEM - which is correct? Also I can't find the definition of SMR (also DOE but that is obviously Department of Energy). Is it steam reforming? Wayne ( talk) 09:51, 10 September 2020 (UTC)
It would be nice to use just one unit for electrolysis efficiency, rather than a jumble of permutations of MJ and kWh with m3, l and kg Gobbag ( talk) 17:10, 1 December 2022 (UTC)
There are four major references for the claim "95% of hydrogen is produced from fossil fuels" used at the top and in the first section: Cite error: The <ref>
tag name cannot be a simple integer (see the
help page).Cite error: The <ref>
tag name cannot be a simple integer (see the
help page).Cite error: The <ref>
tag name cannot be a simple integer (see the
help page).Cite error: The <ref>
tag name cannot be a simple integer (see the
help page).
Unfortunately, Cite error: The <ref>
tag name cannot be a simple integer (see the
help page).Cite error: The <ref>
tag name cannot be a simple integer (see the
help page).Cite error: The <ref>
tag name cannot be a simple integer (see the
help page). are quite old for such a relatively fast-moving field, and Cite error: The <ref>
tag name cannot be a simple integer (see the
help page). is an online article that only casually mentions the number 95% without referencing any sources.
This chemical reaction at room temperature is known since the 1960s. Raising the concentration of gallium in the composite also increased hydrogen production. source: energynews.biz, Applied nanomateriale). 151.19.26.110 ( talk) 21:22, 7 September 2022 (UTC)
Maybe this is too detailed, however it would be good if somebody could check if some article like this one and/or Electrolysis of water for example need an update to related info contained in the article and whether there should be a brief mention of these methods. They're featured in 2023 in science like so:
In two paywalled studies (4 & 30 Jan) separate teams of researchers report substantial improvements to green hydrogen production methods, enabling higher efficiencies and durable use of untreated seawater. [1] [2] [3] [4]
References
Prototyperspective ( talk) 17:05, 9 March 2023 (UTC)
I've removed the following: "The production of hydrogen plays a key role in any industrialized society, since hydrogen is required for many chemical processes. [1]" There is no page 84 in this document. I searched for the words "industrialized" and "society" in the PDF file and got no results for either search. This statement appears to fail verification. Clayoquot ( talk | contribs) 18:12, 13 May 2024 (UTC)
![]() | This article is rated C-class on Wikipedia's
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This material originated from the article Hydrogen economy. KarenAnn 17:08, 1 June 2006 (UTC)
this is quite incorrect and needs deletion or serius change, if aluminum is consumed it is not catalyst and whole process is just usual chemical reaction. it is impossible to generate hydrogen with any catalyst without temperature gradient because that violates laws of thermodynamic. also same effect can be achieved using aluminum amalgam instead of nanoparticles —Preceding unsigned comment added by 78.61.66.75 ( talk) 22:37, 27 November 2009 (UTC)
In the "chemical production" section it shows the overall equation Al + H2O → Al(OH)3 + 3H2. Does anyone know what they do with the leftover Aluminium hydroxide? Armadillo1985 ( talk) 04:15, 30 September 2008 (UTC) Melt it, then electrolyze back to aluminium or throw out. —Preceding unsigned comment added by 78.61.66.75 ( talk) 22:32, 27 November 2009 (UTC)
This process goes well when accompanied by KOH or NaOH. In the presence of water and abundant heat it produces good amounts of hydrogen. — Preceding unsigned comment added by 89.75.41.170 ( talk) 16:33, 7 October 2015 (UTC)
Normally one who talks about Hydrogen production refers to the process of generating hydrogen in large quantities so that it could meet the need of industrial practices, but this "chemical production" mainly introduces a storage method of hydrogen. I understand it is actually the process of hydrogen production, but isn't it a bit different from other methods? Like using bacteria, heat or electricity? I mean maybe it is better to be put in another category. Dcbayer04 ( talk) 12:32, 25 August 2008 (UTC)
Well organized! That's what a Table of Contents should look like ideally. Maybe a Conclusion section would be good. Just a few sentences summing it up. KarenAnn 00:18, 5 June 2006 (UTC)
Water purification is not a method of hydrogen production. I've deleted again. -- Pjacobi 18:03, 5 September 2006 (UTC) I fixed the category text:
And you have to purify the water. Mion 20:44, 5 September 2006 (UTC)
I didn.t say it is a method, but if you talk about hydrogen production from water the first step is the purification of water. Mion 08:18, 6 September 2006 (UTC)
yes, for conductivity, but certain elements have to be removed, i think its better to include when waterpurification is used and when not, and where is the section about hydrogen purification ? Mion 08:52, 6 September 2006 (UTC)
The waterpurification should be under electrolysis tp prevent the misconception that it is a method. Mion 08:57, 6 September 2006 (UTC)
Photoelectrochemical cell. Mion 04:57, 11 September 2006 (UTC)
I have heard of using surface uranium for extraction. I am sorry but i dont remember where, but the idea was that if you found an area with high amounts of radon, you would be able to extract hydrogen from water due to nuclear decay. —Preceding unsigned comment added by 74.78.78.201 ( talk) 02:18, 18 October 2007 (UTC)
As I already mentioned in Talk:Hydrogen_economy, Jerry Woodall, a researcher in Purdue Discovery Park, has made an interesting discovery. The article describes a chemical process in which water reacts with aluminum, the latter effectively stripping water molecules of their oxygen and freeing hydrogen. The gallium prevents formation of aluminum oxide film which would stop the continuous reaction. The reaction takes place until either aluminum or water runs out. More informative description of the process can be found in a Flash-based presentation Woodall has compiled. Does anyone have more information and any thoughts if this should be included in the article? -- Khokkanen 19:43, 1 September 2007 (UTC)
and now someone put that in the nanotecnolody section as another method. —Preceding unsigned comment added by 78.61.66.75 ( talk) 22:40, 27 November 2009 (UTC)
The folks discussing John Kanzius are proposing that content be merged into Hydrogen_production.
The problem here is that it is not clear what Kanzius is claiming.
Is he or is he not claiming that he gets more energy out than the RF input?
If yes: then it appears a water as fuel proposal
If no: then he is apparently claming a highly efficient method of producing hydrogen.
Which is it?
Kaznius himself is not making any public comments, he does not even have a web site. The statements reported and attributed to him have been contradictory.
Meanwhile, his strongest supporter so far, Dr. Rustum Roy, states (as of 13th Sept 2007):
"He has not made any attempt as far as we know to obtain the data regarding the energy balance between input and output." http://www.rustumroy.com/response_to_email.htm
The problem here is complete absence of data on the input and output energy numbers for the process. It is puzzling as to why this is being kept so secret..... I can understand secrecy about HOW it is done, but secrecy as to WHAT has been done makes no sense. Charles 15:29, 16 September 2007 (UTC)
according to experiment video he simply made plasma flame using rf energy source. there is no any hydrogen collencted anywhere. if he at least could collnet hydrogen intead of igniting it then it could be at least soem way of production, but once he cannot store it that is not "production" in any case —Preceding unsigned comment added by 78.61.66.75 ( talk) 20:16, 27 November 2009 (UTC)
From the article:
What year was hydrogen first produced on an industrial scale? By who? Trekphiler ( talk) 19:25, 23 June 2008 (UTC)
Why doesn't this page mention anything about hydrogen being obtained by reacting metals and acids? metal + acid = salt + hydrogen
220.253.62.89 ( talk) 15:58, 7 July 2008 (UTC)
Does anyone know about photo-chemical splitting of water? Basically, the reaction happens you mix a transition-metal catalyst with water and shine light on the solution. I vaguely remember hearing them talk about using Rhodium or Rutherfordium but I'm not sure.
I'll start doing some research myself in case no one else has heard of it. Here is an example [1] of what I'm talking about: Armadillo1985 ( talk) 06:45, 30 September 2008 (UTC)
A Hydrogen Production Breakthrough [January 27, 2009 |
A. Welford Castleman Jr., Eberly Family Distinguished Chair in Science and Evan Pugh Professor in the Penn State Departments of Chemistry and Physics and Penn State graduate students Patrick Roach and Hunter Woodward and Virginia Commonwealth University Professor of Physics Shiv Khanna and postdoctoral associate Arthur Reber announced a discovery to produce hydrogen from water by exposing selected active sites of aluminum atoms on a nanoscaled aluminum cluster.
The study paper was published in the 23 January 2009 issue of the journal Science and was funded and supported by the Air Force Office of Scientific Research.
Mike D ( talk) 15:26, 31 January 2009 (UTC)
Can someone write what the "Steam-iron" process for producing hydrogen is? It's probably one of the things already listed in the article, just not referenced by that name. 146.115.34.7 ( talk) 10:52, 14 April 2009 (UTC)
Relatedly, can someone write (or reference the best theory) of how hydrogen vents in Iceland produce hydrogen? 146.115.34.7 ( talk) 10:52, 14 April 2009 (UTC)
Synthetic biology too is coming up with hydrogen production methods. However, at present it has not yet produced a viable organic hydrogen generator. [1] [2] [3] —Preceding unsigned comment added by 81.246.167.92 ( talk) 10:59, 17 April 2009 (UTC)
add in article
References
it is stated that hydrogen can also be made by reforming fuel. This is also possible on-board of vehicles. Not sure whether there are emissions; think so
see http://www.h2net.org.uk/PDFs/RN_1/HydrogenMLW.pdf —Preceding unsigned comment added by 81.246.162.118 ( talk) 09:08, 30 April 2009 (UTC)
I added this in the 'From water' - http://en.wikipedia.org/wiki/Hydrogen_production#Decomposition_of_Water_by_Radiowaves. Please review. Could not find reviews of the efficiency, doubtful if any have been published yet. Regardless of efficiency, it seems to work, at least in North America. Could not obtain a copy of http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=4651925 - they seemed successful, but hard to say from the abstract if its related. Casimirpo ( talk) 01:51, 17 June 2009 (UTC)
This is definetely hoax because no hydrogen is stored. in best case it can fall under thermal dissociation —Preceding unsigned comment added by 78.61.66.75 ( talk) 22:29, 27 November 2009 (UTC)
Using radiofrequency radiation it is possible to produce hydrogen from water-salt solutions (NaCl-H20) and seawater by chemical decomposition.
When exposed to a polarized radiofrequency beam at 13.56 MHz at room temperature, NaCl–H2O solutions of concentrations ranging from 1 to 30% generate an intimate mixture of hydrogen and oxygen.
Radiofrequency radiation makes sodium ions in saltwater-solution vibrate, and due to van der Waals force the oxygen atoms of water molecules will also vibrate, resulting in separation of hydrogen and oxygen atoms.
Whether this novel method is economically competitive is yet to be resolved. This method of separating hydrogen and oxygen from water was discovered in 2007 by John Kanzius experimenting with water desalinization, and it was first confirmed by Penn State research group lead by Professor Rustum Roy. Observations of polarised RF radiation catalysis of dissociation of H2O–NaCl solutions, R. Roy, M. L. Rao and J. Kanzius, originally published in Materials Research Innovations, 12, 3-6. Salt water burning video by WKYC-TV September 2007 at Penn State University
Here are the mehtods listed by Ullmann's Encyclopedia, which tends to be very thorough: 4.1. Production from Coal and Hydrocarbons 4.2. Electrolysis 4.3. Thermochemical Water Cleavage 4.4. Other Methods for the Cleavage of Water What is missing in terms of methods that are really useful is the oxidation of hydrocarbons. Heavy residua containing lots of sulfur are oxidized to give H2.
The large section about Al being a hydrogen source is misleading and the length and referencing is disproportionate. I feel bad just throwing that part away, but it is nearly criminal to suggest that Al is a source of H2.-- Smokefoot ( talk) 23:41, 6 December 2009 (UTC)
How does this project work: http://arpa-e.energy.gov/FundedProjects.aspx (ARPA-E Affordable Energy from Water and Sunlight project) —Preceding unsigned comment added by 91.176.8.225 ( talk) 10:45, 4 February 2010 (UTC)
Under Chemical production, we see this: "(1) Al + 3 H2O + NaOH → NaAl(OH)4 + 1.5 H2 (2) NaAl(OH)4 → NaOH + Al(OH)3 "
This may be an extremely stupid question, but shouldn't a truely balanced equation not have a fractional coefficient? And also, when you have 3H2O on the left, doesn't that mean that it will result in 6 hydrogens on the right, therefore a coefficient of 3? And also, we've somehow gone from having only one hydroxide(OH) on the left to having 4 on the right - how? (this is all for the 1st equation)
Again, possibly a stupid question - it's been years since I took chemistry. Thanks! —Preceding unsigned comment added by 24.148.170.51 ( talk) 02:13, 9 February 2010 (UTC)
Perhaps that, besides Daniel Nocera's system, the solar reactor too could be mentioned 91.182.139.124 ( talk) 14:42, 13 January 2011 (UTC)
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Hello fellow Wikipedians,
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Cheers.— InternetArchiveBot ( Report bug) 10:15, 9 November 2017 (UTC)
Dear editor(s), You have quite a task at hand because things have not stood still. I am only a layperson but sort of keep an eye on this topic. Someone who has more understanding than me please explore:
1. University of New South Wales+hydrogen production from ocean water with solar/wind
2. Toyota Melbourne (Australia) is getting involved in this after Australia's CSIRO developed a method to store hydrogen as ammonia (NH3) and invented a process (with a metal filter?) to use the hydrogen for burning, i.e. transport and electricity. There was talk about mobile refuelling stations, in the beginning. Refuelling with hydrogen is said to be as quick as with petrol.
3. Tokyo Olympic village is to run on hydrogen.
4. There is some pilot plant in Port Lincoln, South Australia
Someone who understands these things better than me should, please, check these things and update the page. 2001:8003:A02F:F400:3D7D:186:A6DA:4CD0 ( talk) 00:01, 23 October 2019 (UTC)
The section has two definitions of PEM - which is correct? Also I can't find the definition of SMR (also DOE but that is obviously Department of Energy). Is it steam reforming? Wayne ( talk) 09:51, 10 September 2020 (UTC)
It would be nice to use just one unit for electrolysis efficiency, rather than a jumble of permutations of MJ and kWh with m3, l and kg Gobbag ( talk) 17:10, 1 December 2022 (UTC)
There are four major references for the claim "95% of hydrogen is produced from fossil fuels" used at the top and in the first section: Cite error: The <ref>
tag name cannot be a simple integer (see the
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This chemical reaction at room temperature is known since the 1960s. Raising the concentration of gallium in the composite also increased hydrogen production. source: energynews.biz, Applied nanomateriale). 151.19.26.110 ( talk) 21:22, 7 September 2022 (UTC)
Maybe this is too detailed, however it would be good if somebody could check if some article like this one and/or Electrolysis of water for example need an update to related info contained in the article and whether there should be a brief mention of these methods. They're featured in 2023 in science like so:
In two paywalled studies (4 & 30 Jan) separate teams of researchers report substantial improvements to green hydrogen production methods, enabling higher efficiencies and durable use of untreated seawater. [1] [2] [3] [4]
References
Prototyperspective ( talk) 17:05, 9 March 2023 (UTC)
I've removed the following: "The production of hydrogen plays a key role in any industrialized society, since hydrogen is required for many chemical processes. [1]" There is no page 84 in this document. I searched for the words "industrialized" and "society" in the PDF file and got no results for either search. This statement appears to fail verification. Clayoquot ( talk | contribs) 18:12, 13 May 2024 (UTC)