H - Electricity – 01 – M
Patent
H - Electricity
01
M
H01M 4/88 (2006.01) H01M 4/92 (2006.01) H01M 8/10 (2006.01)
Patent
CA 2715150
The invention is directed to high surface area graphitized carbon and to processes for making high surface area graphitized carbon. The process includes steps of graphitizing and increasing the surface area of (in either order) a starting carbon material to form high surface area graphitized carbon. The step of increasing the surface area optionally comprises an oxidizing step (e.g., through steam etching) or template removal from composite particles. The invention is also directed to catalyst particles and electrodes employing catalyst particles that are formed from the high surface area graphitized carbon.
La présente invention a trait à du carbone graphitique de surface élevée et aux processus de fabrication de carbone graphitique de surface élevée. Le processus inclut des étapes consistant à traiter par graphitisation une matière première à base de carbone et à augmenter sa surface (dans nimporte quel ordre) afin de former un carbone graphitique de surface élevée. Létape consistant à augmenter la surface comprend de façon facultative une étape doxydation (par exemple, au moyen dune gravure en phase vapeur) ou de retrait de gabarit à partir de particules composite. Linvention a également trait à des grains de catalyseur et à des électrodes employant des grains de catalyseur qui sont formés à partir du carbone graphitique de surface élevée.
Atanassova Paolina
Moeser Geoffrey D.
Rice Gordon
Shen Jian-Ping
Sun Yipeng
Cabot Corporation
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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