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Author Question: Explain how a fuel cell can use a hydrocarbon such as methanol or natural gas for its fuel. What ... (Read 119 times)

Bernana

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on: Jul 26, 2018
Explain how a fuel cell can use a hydrocarbon such as methanol or natural gas for its fuel.
 
  What will be an ideal response?

Question 2

What is the main difference between a phosphoric acid fuel cell (PAFC) and a proton exchange membrane fuel cell (PEMFC)?
 
  What will be an ideal response?


memslove

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Reply #1 on: Jul 26, 2018
Answer to Question 1

A reformer is used to obtain hydrogen from the hydrocarbon for the fuel cell. For example, methanol can be separated through a steam reformer process.

Answer to Question 2

The PAFC uses liquid phosphoric acid as the electrolyte whereas the PEMFC uses a solid polymer electrolyte. Both cells use a platinum catalyst although the PEMFC is more tolerant of impurities in fuels. The PAFC also must use corrosion resistant materials because of the acid.


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