Graphite materials in "clean energy" applications
Hydrogen energy is regarded as a clean energy source because it is clean and environmentally friendly and has a high energy density compared to conventional energy sources. Hydrogen fuel cells, as one of the main applications of hydrogen energy, drive vehicles through the redox reaction of hydrogen in the chimney. The reaction process produces only water, realizing zero emission. Therefore, hydrogen fuel cells are considered as one of the ideal power sources to meet future energy and environmental requirements due to their high energy conversion rate, low emissions, high energy and power density.
Graphite plays a variety of roles in fuel cells, including: As electrode material: graphite has good electrical and thermal conductivity, so it can be used as electrode material in fuel cells. The electrode material is responsible for the redox reaction in the fuel cell and generates electricity. As a catalyst carrier: graphite has a large surface area and good electrical conductivity, so it can be used as a catalyst carrier.
Graphite bipolar plates are an important part of hydrogen fuel cells. It plays an important role in gas distribution, electrical conductivity, thermal conductivity, and drainage during the working process of fuel cells. Finding graphite materials with excellent performance is an important issue for the industrialization of fuel cell vehicles.
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