The influence of the preparation method on the surface structure of ZnAl2O4

被引：78

作者：

Valenzuela, MA

Jacobs, JP

Bosch, P

Reijne, S

Zapata, B

Brongersma, HH

机构：

[1] EINDHOVEN UNIV TECHNOL,FAC PHYS,NL-5600 MB EINDHOVEN,NETHERLANDS

[2] EINDHOVEN UNIV TECHNOL,SCHUIT INST CATALYSIS,NL-5600 MB EINDHOVEN,NETHERLANDS

[3] UNIV AUTONOMA METROPOLITANA IZTAPALAPA,DEPT QUIM,MEXICO CITY 09340,DF,MEXICO

[4] INST MEXICANO PETR,GERENCIA CATALISIS,MEXICO CITY 07730,DF,MEXICO

来源：

APPLIED CATALYSIS A-GENERAL | 1997年 / 148卷 / 02期

关键词：

zinc aluminate; LEIS; XRD; spinel surface structure; calcium addition; tin addition; isobutane dehydrogenation; oxides;

D O I：

10.1016/S0926-860X(96)00235-9

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：

The effect of preparation method (sol-gel, wet mixing or coprecipitation) on the surface structure of zinc aluminate is reported. Coprecipitated and sol-gel prepared ZnAl2O4 were found to be present spinel structure. If calcium was added during synthesis, it was found to be deposited on top of the spinel surface while, if tin was added, the surface of ZnAl2O4 was reconstructed. These aluminates were impregnated with platinum and tested in the isobutane dehydrogenation. The characterization techniques used were LEIS and X-ray diffraction.

引用

页码：315 / 324

页数：10

共 14 条

[1] METAL SUPPORT EFFECTS AND CATALYTIC PROPERTIES OF PLATINUM SUPPORTED ON ZINC ALUMINATE [J].

AGUILARRIOS, G ;

VALENZUELA, MA ;

ARMENDARIZ, H ;

SALAS, P ;

DOMINGUEZ, JM ;

ACOSTA, DR ;

SCHIFTER, I .

APPLIED CATALYSIS A-GENERAL, 1992, 90 (01) :25-34

[2]

ALLEN GC, 1989, APPL SURF SCI, V37, P11

[3]

Brongersma H H, 1978, Rev Sci Instrum, V49, P707, DOI 10.1063/1.1135598

[4]

BRONGERSMA HH, 1991, NATO ADV SCI I B-PHY, V265, P283

[5] THERMALLY STABLE SMSI SUPPORTS - IRIDIUM SUPPORTED ON TIO2-AL2O3 AND ON CE-STABILIZED ANATASE [J].

FOGER, K ;

ANDERSON, JR .

APPLIED CATALYSIS, 1986, 23 (01) :139-155

[6] QUANTIFICATION OF THE COMPOSITION OF ALLOY AND OXIDE SURFACES USING LOW-ENERGY ION-SCATTERING [J].

JACOBS, JP ;

REIJNE, S ;

ELFRINK, RJM ;

MIKHAILOV, SN ;

BRONGERSMA, HH ;

WUTTIG, M .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A, 1994, 12 (04) :2308-2313

[7] THE SURFACE OF CATALYTICALLY ACTIVE SPINELS [J].

JACOBS, JP ;

MALTHA, A ;

REINTJES, JGH ;

DRIMAL, J ;

PONEC, V ;

BRONGERSMA, HH .

JOURNAL OF CATALYSIS, 1994, 147 (01) :294-300

[8] LOW-ENERGY ION-SCATTERING AT SURFACES [J].

NIEHUS, H ;

HEILAND, W ;

TAGLAUER, E .

SURFACE SCIENCE REPORTS, 1993, 17 (4-5) :213-303

[9]

ROMEIJN FC, 1953, PHILIPS RES REP, V8, P304

[10]

Srinivasan R., 1992, PLATINUM MET REV, V36, P151

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