Fuel_Cell_Memo[1]

Fuel_Cell_Memo[1] - MEMORANDUM TO: DR. P. S. SHIAKOLAS...

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MEMORANDUM TO: DR. P. S. SHIAKOLAS FROM: SALMAN KARIM SUBJECT: FUEL CELL DATE: 6/15/2009 CC: MR. NITIN UPPAL A fuel cell is a device that generates electricity by a chemical reaction. Every fuel cell has two electrodes, one positive and one negative, called, respectively, the cathode and anode. The reactions that produce electricity take place at the electrodes. For this particular experiment, the hydrogen fuel cell was introduced so that students can gain a better understanding about the basic principals behind the fuel cells and its performance. The proton exchange membrane fuel cell is one of the most promising technologies. It uses one of the simplest reactions of any fuel cell. The main components of a basic PEM (proton exchange membrane) fuel cell that facilitates this process are shown in Figure 1 below: Figure 1:  The parts of a PEM fuel cell  When an H 2 molecule comes in contact with the platinum on the catalyst, it splits into two H+ ions and two electrons (e-). The electrons are conducted through the anode, where they make their way through the external circuit (doing useful work such as turning a motor)
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and return to the cathode side of the fuel cell. Meanwhile, on the cathode side of the fuel cell, oxygen gas (O 2 ) is being forced through the catalyst, where it forms two oxygen atoms. Each of these atoms has a strong negative charge. This negative charge attracts the two H + ions
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This note was uploaded on 06/15/2009 for the course MAE 3183 taught by Professor Staff during the Spring '08 term at UT Arlington.

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Fuel_Cell_Memo[1] - MEMORANDUM TO: DR. P. S. SHIAKOLAS...

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