Oxidative steam reforming of methane over Ni/α-Al2O3 modified with trace Pd

被引：41

作者：

Yoshida, Kaori ^{[1
]}

Okumura, Kazu ^{[2
]}

Miyao, Toshihiro ^{[3
]}

Naito, Shuichi ^{[3
]}

Ito, Shin-ichi ^{[1
]}

Kunimori, Kimio ^{[1
]}

Tomishige, Keiichi ^{[1
]}

机构：

[1] Univ Tsukuba, Inst Mat Sci, Tsukuba, Ibaraki 3058573, Japan

[2] Tottori Univ, Fac Engn, Dept Mat Sci, Tottori 6808552, Japan

[3] Kanagawa Univ, Fac Engn, Dept Appl Chem, Kanagawa Ku, Kanagawa 2218686, Japan

来源：

APPLIED CATALYSIS A-GENERAL | 2008年 / 351卷 / 02期

关键词：

Oxidative reforming; Steam reforming; Methane; Ni; Pd; Pt; Thermography; Hot spot; Co-impregnaiton;

D O I：

10.1016/j.apcata.2008.09.014

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：

Ni catalysts supported on alpha-Al2O3 modified with small amounts of Pd were prepared by different impregnation methods to investigate catalytic performance and catalyst bed temperature profile in oxidative steam reforming of methane. The Pd + Ni bimetallic catalysts prepared by the co-impregnation method showed higher resistance to hot-spot formation than monometallic Ni and bimetallic Pd/Ni catalysts prepared by two sequential impregnations, in particular, Pt + Ni catalysts prepared by the co-impregnation method. The additive effect of Pd on the Pd/Ni catalysts was discussed on the bases of metal particle size and structural analysis by Pd K-edge extended X-ray absorption fine structure (EXAFS). (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：217 / 225

页数：9

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