PREPARATION AND CHARACTERIZATION OF THERMOSTABLE SILVER ON ALPHA-ALUMINA CATALYSTS

被引：3

作者：

MEIMA, GR ^{[1
]}

VANLEUR, MGJ ^{[1
]}

VANDILLEN, AJ ^{[1
]}

GEUS, JW ^{[1
]}

BONGAARTS, JE ^{[1
]}

VANBUREN, FR ^{[1
]}

DERKS, LJGM ^{[1
]}

DELCOUR, K ^{[1
]}

机构：

[1] STATE UNIV UTRECHT, DEPT INORGAN CHEM, 3522 AD UTRECHT, NETHERLANDS

来源：

APPLIED CATALYSIS | 1988年 / 44卷 / 1-2期

关键词：

Carbon Monoxide--Oxidation - Tin Compounds;

D O I：

10.1016/S0166-9834(00)80049-4

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A new preparative method is described for the production of thermostable, supported silver catalysts. The enhanced thermostability is brought about by 'anchoring' the silver particles with tin oxide previously applied to the support. A preshaped α-alumina support was employed. Sintering of the silver particles after calcination in air at various temperatures was studied extensively by scanning electron microscopy. To obtain an highly thermostable silver catalyst, the SnO2 must be applied as discrete particles to the surface of the support prior to the deposition of the silver. If the SnO2 is applied as a continuous thin film, the silver particles are not thermally stabilized. Additional characterization of one of the prepared thermostable catalysts was performed by molecular oxygen was used both to characterize the catalyst and to test its catalytic activity.

引用

页码：133 / 152

页数：20

共 21 条

[1] REACTIVITY OF OXYGEN ADSORBED ON SILVER POWDER IN THE EPOXIDATION OF ETHYLENE [J].

BACKX, C ;

MOOLHUYSEN, J ;

GEENEN, P ;

VANSANTEN, RA .

JOURNAL OF CATALYSIS, 1981, 72 (02) :364-368

[2] BEHAVIOR OF SILVER PARTICLES SUPPORTED ON GRAPHITE IN VARIOUS GASEOUS ENVIRONMENTS [J].

BAKER, RTK ;

SKIBA, P .

CARBON, 1977, 15 (04) :233-237

[3] The oxidation of carbon monoxide with a silver catalyst [J].

Benton, AF ;

Bell, RT .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1934, 56 :501-505

[4] SELECTIVE OXIDATION OF HYDROCARBONS ON COMPOSITE OXIDES [J].

DADYBURJOR, DB ;

JEWUR, SS ;

RUCKENSTEIN, E .

CATALYSIS REVIEWS-SCIENCE AND ENGINEERING, 1979, 19 (02) :293-350

[5]

DEJONG KP, 1983, PREPARATION CATALYST, V3, P111

[6]

HEDGE RI, 1983, SURF SCI, V133, P233

[7]

JOZIASSE J, 1978, THESIS STATE U UTREC, pCH5

[8] KINETICS AND MECHAMISM OF CARBON MONOXIDE OXIDATION OVER SILVER CATALYSTS [J].

KEULKS, GW ;

CHANG, CC .

JOURNAL OF PHYSICAL CHEMISTRY, 1970, 74 (13) :2590-&

[9]

LACROIX R, 1966, MEM SCI REV METALL, V63, P7

[10]

LEE GA, 1983, Patent No. 4367167

← 1 2 3 →