The novel route of preparation of the supported gold catalysts by deposition-precipitation

被引：3

作者：

Kirichenko, O. A. ^{[1
]}

Kapustin, G. I. ^{[1
]}

Nissenbaum, V. D. ^{[1
]}

Tkachenko, O. P. ^{[1
]}

Poluboyarov, V. A. ^{[2
]}

Tarasov, A. L. ^{[1
]}

Kucherov, A. V. ^{[1
]}

Kustov, L. M. ^{[1
]}

机构：

[1] RAS, ND Zelinsky Inst Organ Chem, 47 Leninsky Prosp, Moscow 119991, Russia

[2] SB RAS, Inst Solid State Chem & Mechanochem, Novosibirsk 630128, Russia

来源：

SCIENTIFIC BASES FOR THE PREPARATION OF HETEROGENEOUS CATALYSTS: PROCEEDINGS OF THE 10TH INTERNATIONAL SYMPOSIUM | 2010年 / 175卷

关键词：

catalyst preparation; gold;

D O I：

10.1016/S0167-2991(10)75103-X

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Au/SiO2 and Au/TiO2 catalysts were prepared by the original procedure of deposition-precipitation with ammonia. As compared with the previously published methods, the proposed procedure makes possible almost complete deposition (>99%) of gold from HAuCl4 solution on the SiO2 and TiO2 supports at the low ratio NH3:Au = 6.5-7 and pH<6. The genesis of supported gold species was studied with TG-DTA, TPR, TPD, XRD, TEM, (IXANES + EXAFS) and FTIR of adsorbed CO. The samples prepared were catalytically active in the liquid phase oxidation of piperonyl alcohol to aldehyde and in the S-VOC removal at the relatively low temperatures.

引用

页码：537 / 540

页数：4

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