The Effects Of High Organature Proton Exchange Fuel Cells

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High temperature proton exchange membrane fuel cells (HT-PEMFCs) are a promising clean technology, especially for automobile applications.1 These devices generate electricity from the chemical reactions that occur in the anode side of the cell, using H2 as a fuel and generating heat and water as by-products.2, 3 However, experimental studies using HT-PEMFCs show that degradation of the cell can occur after certain hours of operation (around 500 hours).4 Some of the factors that contribute to the degradation of the HT-PEMFCs are rupture of the bulk polymer backbone of the membrane, H3PO4 loss and poisoning of the catalyst layer.5 These degradation problems must be overcome in order to commercialize this type of fuel cells.5 Consequently, extensive …show more content…
For instance they have been identified as the principal source of CO2 …show more content…
As a consequence, in order to overcome the chal-lenges posed by the current consumption of fossil fuels, alternative sources of energy are being stud-ied together with the development of new technol-ogies that could operate with them.14 One example of these environmentally friendly technologies are fuel cells, which are electrochemical devices that convert chemical energy into electrical energy with low CO2 emission.2 One of the most promising type of fuel cells is high temperature proton exchange membrane fuel cells (HT-PEMFCs), suitable for automobile applications due to their high power density, high tolerance to fuel impurities, rapid start-up and high efficiency.2, 15,

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