Preparation of nanometeric gold particles on NaHY

被引：45

作者：

Guillemot, D

PolissetThfoin, M

Fraissard, J

机构：

[1] Laboratoire de Chimie des Surfaces, CNRS URA 1428, Univ. Pierre et Marie Curie, 75252 Paris Cedex 05, case 196

来源：

CATALYSIS LETTERS | 1996年 / 41卷 / 3-4期

关键词：

gold particles; zeolite; TEM;

D O I：

10.1007/BF00811481

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：

Two Au/NaHY systems examined by TEM were prepared using an autoreduction method of Au3+ by its ethylene diamine ligands. When about 10% of the cations are H+ the particle diameter distribution is found to be about 2 nm and homogeneous. If 75% of cations are H+ the gold particle distribution is centered around 3-4 nm. Gold particles are of good stability when exposed to H-2 at 573 K for two days and the stability under O-2 greater with the higher acidified zeolite.

引用

页码：143 / 148

页数：6

共 29 条

[21] SELECTIVE CATALYTIC-OXIDATION OF ORGANIC-COMPOUNDS BY NITROGEN-DIOXIDE [J].

NYARADY, SA ;

SIEVERS, RE .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1985, 107 (12) :3726-3727

[22] ALKYL TRANSFER STEPS IN CATALYTIC ALKYLATION OF BENZENE, TOLUENE, AND CYCLOHEXANE [J].

PARRAVANO, G .

JOURNAL OF CATALYSIS, 1972, 24 (02) :233-+

[23] MELTING TEMPERATURE OF SMALL CLUSTERS [J].

ROSS, J ;

ANDRES, RP .

SURFACE SCIENCE, 1981, 106 (1-3) :11-17

[24] H-1-NMR OF HYDROGEN CHEMISORBED ON PT-AU/AL2O3 CATALYSTS - EVIDENCE FOR THE FORMATION OF MIXED PARTICLES [J].

ROUABAH, D ;

FRAISSARD, J .

CATALYSIS LETTERS, 1995, 34 (3-4) :321-329

[25] ELECTRON-DEFICIENT PALLADIUM CLUSTERS AND BIFUNCTIONAL SITES IN ZEOLITES [J].

SACHTLER, WMH ;

STAKHEEV, AY .

CATALYSIS TODAY, 1992, 12 (2-3) :283-295

[26] HYDROGENATION OF ALKENES OVER SUPPORTED GOLD [J].

SERMON, PA ;

BOND, GC ;

WELLS, PB .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS I, 1979, 75 :385-394

[27] GOLD TITANIA INTERACTIONS - TEMPERATURE-DEPENDENCE OF SURFACE-AREA AND CRYSTALLINITY OF TIO2 AND GOLD DISPERSION [J].

SHASTRI, AG ;

DATYE, AK ;

SCHWANK, J .

JOURNAL OF CATALYSIS, 1984, 87 (01) :265-275

[28]

TSUBOTA S, 1991, STUD SURF SCI CATAL, V63, P695

[29]

Tsubota S, 1995, STUD SURF SCI CATAL, V91, P227

← 1 2 3 →