Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Reexamination Certificate
2006-01-31
2006-01-31
Nguyen, Cam N. (Department: 1754)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
C502S243000, C502S244000, C502S258000, C502S259000, C502S260000, C502S261000, C502S262000, C502S325000, C502S326000, C502S330000, C502S331000, C502S332000, C502S333000, C502S334000, C502S335000, C502S337000, C502S339000, C502S344000, C502S345000, C502S346000, C502S347000, C502S348000, C502S355000, C502S415000, C502S439000
Reexamination Certificate
active
06992039
ABSTRACT:
A method for uniformly dispersing noble metal particles on a porous carrier by first mixing an alkoxide product of aluminum or silicon and a noble metal precursor together; then mixing a surfactant into the mixture; then mixing ammonia solution into the mixture to form a hydroxide of aluminum or silicon; then mixing a reducing agent into the mixture to convert the noble metal precursor into noble metal nanoparticles dispersed on the hydroxide; then separating the noble metal nanoparticles and the hydroxide from the mixture before calcining the hydroxide into an oxide of aluminum or silicon.
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Cai Mei
Jiang Long
Li Jinru
Rogers Jerry Dale
Chinese Academy of Sciences
General Motors Corporation
Marra Kathryn A.
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