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| You're missing the context of what I'm saying, Escapee. You posted this quote: An Australian researcher has warned that the drive to put cleaner, hydrogen-fuelled cars on the road will stall unless new reserves of platinum are found. This researcher has taken the point of view that the world needs to be warned that production of Hydrogen for Hydrogen fueled cars will stall if no new reserves of Platinum are found. This is completely false. Who cares if Plantium is low? Hydrogen is the most abundant element in the universe and can be pretty much made from anything. Now do you see my point? |
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Yes i know, I know that H2 is abundant, but you cannot move something with just H2, you need a fuel cell to initiate the electrochemical reaction between H2 and O2, and platinum is an important component of fuel cell. Unfortunately, Chemists have not been able to find a suitable replacement for platinum since the begining of internal combustion engine ....... It seems to me that Platinum is the limiting factor for the H2 car revolution. That's what I'm concerned about. |
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The generated Hydrogen can then be inserted into a fuel cell. I think thats the part you're not understanding, and which the general public is mislead by. It's all about continuing the lie that Energy is scarce. Here's a fuel cell that you simply recharge with generated Hydrogen. Below are just a few of the many ways Hydrogne can be generated. (And these don't even touch on what Brutha posted about MIT using power from Solar to generated Hydrogen. Wind power can also be the source fuel to generate Hydrogen from water.) Quote:
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__________________ I am always open for feedback on my posts. That might focused on the argument at hand or on my writing style. If your feedback would go offtopic feel free to send me a Personal Message. My posts generally don't contain medical or legal advice, if you have a problem seek the opinion of an expert I don't believe in Beliefs. Nassim Nicholas Taleb |
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Apologies to both of you. I think I'll research on this topic regarding possible alternative methods of construction of Fuel cells, sounds interesting. |
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Here's what I found. Apparently platinum is not the only material Fuel cells can be made from. According to Wikipedia | Fuel Cell, nano iron powder can also be used and is highly efficient. "It is produced by first refining the iron until it is exceptionally pure. Next it is wound into wire. This wire is then exposed to an electric explosion, separating the iron molecules. What results is an iron powder that must be measured at the nanoscale.[1]" It seems, to produce the nano iron powder is extremely labor intensive, tho. More: UH Cullen College of Engineering | Finds alternative to Platinum September 21, 2007 California Institute of Technology use Barium, Strontium, Cobalt, Iron and Oxygen as catalyst in Fuel Cells. Also on the horizon is the company I've already mentioned before, Blacklight Power, which bypasses Fuel cells altogether. Seems this company has major players on their board of directors. |
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Putting Platinum and other depleting precious metals aside (eg: copper, silver ), another concern for Hydrogen economy is the EROEI ( Energy return on investment ). The Oil Drum: Europe | Should EROEI be the most important criterion our society uses to decide how it meets its energy needs? We have achieved a very high EROEI with crude oil under modern technology ( oil rig in super oil field at Saudi sucking million barrels of oil per day ). This has allowed the world economy to grow at a rate not seen before the oil industrial age. Output energy > > > Input energy = WEALTH I wonder what is the EROEI of hydrogen production ? If it takes 100 BTU of energy ( from coal, solar, wind, nuke, oil, high energy catalysts and etc ) to produce 60 BTU worth of hydrogen based energy. Do you think it's more practical to just have a plug in electric car (powered by battery, solar-battery & etc ) ? Would it be better to just use the original 100BTU electrical energy to power the vehicle directly instead of using it to create hydrogen ( energy carrier by itself ) with less output of BTU ? Hydrogen economy: energy and economic black hole | Energy Bulletin Quote:
Last edited by escapee; 08-21-2008 at 06:09 PM. |
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You also lose energy by storing it in batteries. Lastly batteries (the kind we use at the moment) need lithium and there not that much lithium available if you want to make all cars run on it. Technology that need scarce materials have problems to scale be it platinum or lithium. Maybe the air car could also be the winning techonology. It's difficult to forcast the future, because we don't know what will be invented next.
__________________ I am always open for feedback on my posts. That might focused on the argument at hand or on my writing style. If your feedback would go offtopic feel free to send me a Personal Message. My posts generally don't contain medical or legal advice, if you have a problem seek the opinion of an expert I don't believe in Beliefs. Nassim Nicholas Taleb |
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I know that we are running peak on everything precious, so let just put aside the precious metal and focus solely on energy return. I suspect when one does the math of net energy or EROI, Hydrogen could be the least energy efficiency and the most expensive way to replace oil and reduce GH gases. Quote:
Horse ridding lesson, anyone ? hehehe .. Last edited by escapee; 08-22-2008 at 06:59 AM. |
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Interestingly, I was surfing the web and found this. PIPAC (1998): 45% Hydrogen | Daniel Dingel - Filipino Inventor Independant testing of Dingels Electrolysis process. Last edited by infinitethoughts; 08-24-2008 at 04:40 PM. |
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Maybe there is still a glimmer of hope in the era of peak oil/gas, peak metals, peak minerals and peak weather. Let's keep our finger crossed MIT Builds Efficient Nanowire Ultracapacitor Car Storage to Replace Batteries - Popular Mechanics Quote:
RIA Novosti - Opinion & analysis - Fast reactors: Russia solves fuel and waste problem Quote:
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