发明名称 |
Making electrocatalyst supports for fuel cells |
摘要 |
Titanium oxide (usually titanium dioxide) catalyst support particles are doped for electronic conductivity and formed with surface area-enhancing pores for use, for example, in electro-catalyzed electrodes on proton exchange membrane electrodes in hydrogen/oxygen fuel cells. Suitable compounds of titanium and a dopant are dispersed with pore-forming particles in a liquid medium. The compounds are deposited as a precipitate or sol on the pore-forming particles and heated to transform the deposit into crystals of dopant-containing titanium dioxide. If the heating has not decomposed the pore-forming particles, they are chemically removed from the, now pore-enhanced, the titanium dioxide particles.
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申请公布号 |
US8025861(B2) |
申请公布日期 |
2011.09.27 |
申请号 |
US20100716360 |
申请日期 |
2010.03.03 |
申请人 |
GM GLOBAL TECHNOLOGY OPERATIONS LLC;ADMINISTRATORS OF THE TULANE EDUCATIONAL FUND |
发明人 |
CAI MEI;LU YUNFENG;WU ZHIWANG;FENG LEE LIZHONG;RUTHKOSKY MARTIN S.;JOHNSON JOHN T.;WAGNER FREDERICK T. |
分类号 |
C01G23/04;B01J23/00;C01G23/00 |
主分类号 |
C01G23/04 |
代理机构 |
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