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Cheers. — cyberbot II Talk to my owner:Online 05:04, 26 August 2015 (UTC)
This statement is in the article. "The first commercial use of fuel cells came more than a century later in NASA space programs to generate power for probes, satellites and space capsules."
However, I can't find any sources on the web that state that a space probe used a fuel cell. I don't think any space probe used fuel cells at all; only manned spacecraft like the Shuttle and Biosatellite. Am I completely wrong? Are there actually probes that use fuel cells? anon ( talk) 22:40, 30 September 2015 (UTC)
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I'd like to suggest adding solid acid fuel cells under "types of fuel cells." The first proof-of-concept was developed in 2000 Haile, Sossina M.; Boysen, Dane A.; Chisholm, Calum R. I.; Merle, Ryan B. (19 April 2001). "Solid acids as fuel cell electrolytes". Nature. 410: 910–913. doi: 10.1038/35073536. Retrieved 5 July 2016. and subsequent versions have since demonstrated lifetimes in the thousands of hours.Haile, Sossina M.; Chisholm, Calum R. I.; Sasaki, Kenji; Boysen, Dane A.; Uda, Tetsuya (2007). "Solid acid proton conductors: from laboratory curiosities to fuel cell electrolytes". Faraday Discussions. 134. Royal Society of Chemistry: 17–39. doi: 10.1039/B604311A. Retrieved 5 July 2016. Several science magazines have written about the technology.Bullis, Kevin (21 October 2010). "Cheap Diesel-Powered Fuel Cells". MIT Technology Review. Retrieved 5 July 2016. "Diesel: The Fuel of the Future?". Discovery News. 11 February 2013. Retrieved 5 July 2016.Olsen, Claude R.; Lie, Else (8 October 2010). "Running fuel cells on biodiesel". The Research Council of Norway. Retrieved 5 July 2016. -- Ldajose ( talk) 22:57, 5 July 2016 (UTC)
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The section on Fuel cell electric vehicles says "General Motors and its partners estimated that per mile traveled, a fuel cell electric vehicle running on compressed gaseous hydrogen produced from natural gas could use about 40% less energy and emit 45% less greenhouse gasses than an internal combustion vehicle." Later it quotes Joseph Romm as claiming that FCVs aren't green because of escaping methane during natural gas extraction and when hydrogen is produced.
Wikipedia is not very helpful when it gives apparently contradictory information without explaining the contradiction, since then people can prove whatever they want by cherry-picking from Wikipedia. Is there some sense in which both GM and Romm could be right? Vaughan Pratt ( talk) 17:16, 17 July 2016 (UTC)
Both can be right. The General Motors quotation relates to comparisons of efficiency and emissions of vehicles. The Joseph Romm quotation relates to the process of producing hydrogen at a plant. This hydrogen could then be used to refuel a FCEV. Note that other methods of producing hydrogen are in use. — Preceding unsigned comment added by 82.6.19.153 ( talk) 13:42, 25 October 2016 (UTC)
The article states that the startup time of a solid oxide fuel cell is 10 minutes, but without any citation. The following document published by fuel cell manufacturer Ceres Power states that the startup time is 30 minutes: http://www.cerespower.com/admin/resources/ecs-trans.-2013-leah-461-70-2.pdf Without a citation for the 10 minutes figure I suggest that the article is updated to state 30 minutes. 82.6.19.153 ( talk) 13:51, 25 October 2016 (UTC)
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Solid oxide and molten carbonate fuel cells operate using negative ion transport, so the initial definition of fuel cell is incorrect, being too narrow: "A fuel cell is a device that converts the chemical energy from a fuel into electricity through a chemical reaction of positively charged hydrogen ions with oxygen or another oxidizing agent." In fact, a fuel cell in general is a device for converting chemical energy in fuel to electricity by ion transport across an electrolytic barrier, with hydrogen ions being easiest to transport and therefore hydrogen-ion fuel cells being the most common and most successful to date. Furthermore, negative-ion-transport fuel cells do not necessarily have an "internal reforming" process, and the primary chemical equations for them are those of carbon oxidization. For example, if coal were being used directly in a molten carbonate fuel cell, hydrogen would not even be present. — Preceding unsigned comment added by 198.208.159.19 ( talk) 19:31, 3 May 2017 (UTC)
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In the article, there are some reactions using O2-, where in aqueous solutions I would expect OH-. Maybe this is just a short-cut, where everyone knows how it works, though I believe here it would be nice not to take such short cuts. Gah4 ( talk) 21:28, 31 October 2018 (UTC)
Hi, @ Ssilvers:. That seems like a lot of information to delete. If you think it's too much detail for the main fuel cell article, I wonder whether moving it to a separate article on, say, "fuel cell bus experiments" might be appropriate. PRRfan ( talk) 19:18, 10 September 2019 (UTC)
I was looking into PEM fuel cells and noticed that there is a large description on PEMFCs both at Proton-exchange membrane fuel cell and here. I'm new to editing Wikipedia but happy to help: how does the community feel this would be best resolved? Richardcw ( talk) 19:28, 11 April 2020 (UTC)
Was the Pike prediction correct? — Preceding unsigned comment added by 36.11.224.129 ( talk) 00:07, 5 February 2021 (UTC)
![]() | This is an archive of past discussions. Do not edit the contents of this page. If you wish to start a new discussion or revive an old one, please do so on the current talk page. |
Archive 1 | Archive 2 | Archive 3 | Archive 4 |
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Cheers. — cyberbot II Talk to my owner:Online 05:04, 26 August 2015 (UTC)
This statement is in the article. "The first commercial use of fuel cells came more than a century later in NASA space programs to generate power for probes, satellites and space capsules."
However, I can't find any sources on the web that state that a space probe used a fuel cell. I don't think any space probe used fuel cells at all; only manned spacecraft like the Shuttle and Biosatellite. Am I completely wrong? Are there actually probes that use fuel cells? anon ( talk) 22:40, 30 September 2015 (UTC)
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Cheers.— cyberbot II Talk to my owner:Online 09:36, 27 February 2016 (UTC)
I'd like to suggest adding solid acid fuel cells under "types of fuel cells." The first proof-of-concept was developed in 2000 Haile, Sossina M.; Boysen, Dane A.; Chisholm, Calum R. I.; Merle, Ryan B. (19 April 2001). "Solid acids as fuel cell electrolytes". Nature. 410: 910–913. doi: 10.1038/35073536. Retrieved 5 July 2016. and subsequent versions have since demonstrated lifetimes in the thousands of hours.Haile, Sossina M.; Chisholm, Calum R. I.; Sasaki, Kenji; Boysen, Dane A.; Uda, Tetsuya (2007). "Solid acid proton conductors: from laboratory curiosities to fuel cell electrolytes". Faraday Discussions. 134. Royal Society of Chemistry: 17–39. doi: 10.1039/B604311A. Retrieved 5 July 2016. Several science magazines have written about the technology.Bullis, Kevin (21 October 2010). "Cheap Diesel-Powered Fuel Cells". MIT Technology Review. Retrieved 5 July 2016. "Diesel: The Fuel of the Future?". Discovery News. 11 February 2013. Retrieved 5 July 2016.Olsen, Claude R.; Lie, Else (8 October 2010). "Running fuel cells on biodiesel". The Research Council of Norway. Retrieved 5 July 2016. -- Ldajose ( talk) 22:57, 5 July 2016 (UTC)
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The section on Fuel cell electric vehicles says "General Motors and its partners estimated that per mile traveled, a fuel cell electric vehicle running on compressed gaseous hydrogen produced from natural gas could use about 40% less energy and emit 45% less greenhouse gasses than an internal combustion vehicle." Later it quotes Joseph Romm as claiming that FCVs aren't green because of escaping methane during natural gas extraction and when hydrogen is produced.
Wikipedia is not very helpful when it gives apparently contradictory information without explaining the contradiction, since then people can prove whatever they want by cherry-picking from Wikipedia. Is there some sense in which both GM and Romm could be right? Vaughan Pratt ( talk) 17:16, 17 July 2016 (UTC)
Both can be right. The General Motors quotation relates to comparisons of efficiency and emissions of vehicles. The Joseph Romm quotation relates to the process of producing hydrogen at a plant. This hydrogen could then be used to refuel a FCEV. Note that other methods of producing hydrogen are in use. — Preceding unsigned comment added by 82.6.19.153 ( talk) 13:42, 25 October 2016 (UTC)
The article states that the startup time of a solid oxide fuel cell is 10 minutes, but without any citation. The following document published by fuel cell manufacturer Ceres Power states that the startup time is 30 minutes: http://www.cerespower.com/admin/resources/ecs-trans.-2013-leah-461-70-2.pdf Without a citation for the 10 minutes figure I suggest that the article is updated to state 30 minutes. 82.6.19.153 ( talk) 13:51, 25 October 2016 (UTC)
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Solid oxide and molten carbonate fuel cells operate using negative ion transport, so the initial definition of fuel cell is incorrect, being too narrow: "A fuel cell is a device that converts the chemical energy from a fuel into electricity through a chemical reaction of positively charged hydrogen ions with oxygen or another oxidizing agent." In fact, a fuel cell in general is a device for converting chemical energy in fuel to electricity by ion transport across an electrolytic barrier, with hydrogen ions being easiest to transport and therefore hydrogen-ion fuel cells being the most common and most successful to date. Furthermore, negative-ion-transport fuel cells do not necessarily have an "internal reforming" process, and the primary chemical equations for them are those of carbon oxidization. For example, if coal were being used directly in a molten carbonate fuel cell, hydrogen would not even be present. — Preceding unsigned comment added by 198.208.159.19 ( talk) 19:31, 3 May 2017 (UTC)
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In the article, there are some reactions using O2-, where in aqueous solutions I would expect OH-. Maybe this is just a short-cut, where everyone knows how it works, though I believe here it would be nice not to take such short cuts. Gah4 ( talk) 21:28, 31 October 2018 (UTC)
Hi, @ Ssilvers:. That seems like a lot of information to delete. If you think it's too much detail for the main fuel cell article, I wonder whether moving it to a separate article on, say, "fuel cell bus experiments" might be appropriate. PRRfan ( talk) 19:18, 10 September 2019 (UTC)
I was looking into PEM fuel cells and noticed that there is a large description on PEMFCs both at Proton-exchange membrane fuel cell and here. I'm new to editing Wikipedia but happy to help: how does the community feel this would be best resolved? Richardcw ( talk) 19:28, 11 April 2020 (UTC)
Was the Pike prediction correct? — Preceding unsigned comment added by 36.11.224.129 ( talk) 00:07, 5 February 2021 (UTC)