Activity of Au/ZnO catalysts prepared by photodeposition for the preferential CO oxidation in a H2-rich gas

被引：25

作者：

Dulnee, S. ^{[1
]}

Luengnaruemitchai, A. ^{[1
]}

Wanchanthuek, R. ^{[2
,3
]}

机构：

[1] Chulalongkorn Univ, Petr & Petrochem Coll, Bangkok 10330, Thailand

[2] Mahasarakham Univ, Fac Sci, Dept Chem, Kantarawichai Dist 44150, Mahasarakham, Thailand

[3] Mahasarakham Univ, Fac Sci, Ctr Excellence Innovat, Kantarawichai Dist 44150, Mahasarakham, Thailand

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2014年 / 39卷 / 12期

关键词：

PROX; CO oxidation; Au catalyst; Au/ZnO; Photo-deposition; SELECTIVE OXIDATION; AU NANOPARTICLES; GOLD CATALYSTS; CARBON-MONOXIDE; ZINC-OXIDE; DEPOSITION; HYDROGEN; ZNO; TEMPERATURE; PLATINUM;

D O I：

10.1016/j.ijhydene.2014.02.038

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：

In this work, Au supported over ZnO prepared by photodeposition was applied to prepare nano-size Au catalysts by utilizing UV light for the preferential oxidation (PROX) of CO. The results demonstrated that Au can be dispersed homogeneously over ZnO in the size range of 1-2 nm with a narrow size distribution. It was clearly seen that the preparation parameters (i.e. irradiation time, precipitant concentration, calcination, and storage condition) had a significant effect on the catalytic activity. Among the variables studied, low concentrations of precipitant and long irradiation time were by far the most influential on the catalytic activity. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：6443 / 6453

页数：11

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