40% platinum carbon black catalyst
40% platinum carbon black catalyst
CAS: 7440-06-4
Carrier: Conductive carbon black VXC72 or VXC72R
Appearance: black powder
Application scope：
It is mainly used for chemical reactions such as hydrogen oxidation, methanol oxidation, proton exchange membrane electrolysis of water, and oxygen reduction in fuel cells. It is a very common precious metal catalyst.
Platinum carbon black catalyst is an electrochemical catalyst prepared by loading noble metal platinum on activated carbon black (VXC72 or VXC72R). Platinum carbon black catalysts are mainly used in chemical reactions such as hydrogen oxidation, methanol oxidation and oxygen reduction in fuel cells, and are very common precious metal catalysts. In the reaction process of fuel cells, the catalysts of PEMFC are different according to the different electrodes. The anode catalysts are usually aimed at different fuels. Electrocatalysts with high stability and high activity are used, which have good catalysis for the oxidation of hydrogen. effect. Cathode electrocatalysts mainly consider fuel permeation and oxygen reduction stability. Since the exchange current density of the oxygen reduction reaction (ORR) is much lower than that of the hydrogen oxidation reaction (HOR), the general polarization loss mainly comes from the cathode side (air side). Therefore, the research focus is to improve the activity of the catalyst on the cathode side.
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