40% platinum 20% ruthenium carbon black catalyst
Main metal content: 40% Pt20% Ru
CAS:
7440-06-4
7440-18-8
Carrier: Conductive carbon black VXC72 or VXC72R
Appearance: Black powder
Proton exchange membrane fuel cells, proton exchange membrane electrolysis water hydrogen production, cable shielding materials, cable accessories, semiconductors, electronic circuit boards, electrical appliances and transportation equipment, etc
Anode catalyst: The anode catalyst of proton exchange membrane fuel cell technology mainly uses platinum carbon black or platinum black electrocatalyst with high stability and high activity, which has a good catalytic effect on hydrogen oxidation.
Cathode catalyst: The cathodic electrocatalyst of proton exchange membrane fuel cell (PEMFC) mainly uses Pt metal. The cathode catalyst that is widely used at present usually refers to the platinum carbon black composite electrocatalyst, which can achieve high oxygen reduction activity and certain stability. As a cathode catalyst of precious metal platinum, the biggest problem at present is whether the catalytic activity can be maximized. To achieve the desired effect, a certain amount of platinum must be loaded. At the same time, the load of platinum should be reduced, and the activity of electrocatalysis should be improved. This technology requires certain changes in the macroscopic composition and microscopic morphology, and changing the original structure can fundamentally solve the problem of effective utilization of the catalyst. The electrocatalyst introduces ruthenium as a binary catalyst, which can effectively peel oxygen. Enhancing the activity of platinum significantly increased the catalytic activity. The decomposition of water requires high electrical energy, which limits the catalytic effect of pure platinum too much. Ru can dissociate hydrogen and oxygen intermediates at a lower potential, which greatly improves the oxidation ability of electrocatalysts. This is also the most widely used bifunctional mechanism.
20%, 40%, 60% platinum ruthenium carbon catalyst is a carbon-supported catalyst for loading metal platinum ruthenium (1:1) onto superconducting carbon black. Platinum 40%, ruthenium 20%, has the characteristics of small particle size, uniform particle size distribution and high specific surface area. Can be used as electrocatalysts for hydrogen energy fuel cells, methanol fuel cells (DMFC) and proton exchange membrane (PEM) fuel cells. Carbon black VXC72 and VXC72R are standard conductive carbon black for industrial use. The product can be widely used in various industrial fields that require conductivity and antistatic properties, such as cable shielding materials, cable accessories, semiconductors, electronic circuit boards, electrical appliances and transportation equipment. VXC72 and VXC72R carbon black have the characteristics of high conductivity, easy dispersion and UV resistance.
physicochemical parameters
Platinum content | 40.0% |
Ruthenium content | 20.0% |
appearance | Black powder |
metal surface area | 80-120m2/g |
CAS number | 7440-06-4 7440-18-8 |
Metal particle size | 2-5nm |
matrix | carbon black |
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