Design of a stable steam reforming catalyst-A promising route to sustainable hydrogen from biomass oxygenates

被引：64

作者：

Guell, B. Matas ^{[1
]}

Babich, I. ^{[1
]}

Nichols, K. P. ^{[1
]}

Gardeniers, J. G. E. ^{[1
]}

Lefferts, L. ^{[1
]}

Seshan, K. ^{[1
]}

机构：

[1] Univ Twente, Fac Sci & Technol, NL-7500 AE Enschede, Netherlands

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2009年 / 90卷 / 1-2期

关键词：

Sustainable; Hydrogen; Steam reforming; Pt; Oxygen; MALDI-TOF MS; ACETIC-ACID; BIO-OIL; OXIDATION; DEACTIVATION; KETONIZATION; CONDENSATION; COMPONENTS; PYROLYSIS; ZIRCONIA; PT/ZRO2;

D O I：

10.1016/j.apcatb.2009.02.008

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 influence of the support and the presence of oxygen were investigated in the steam reforming of acetic acid, a bio-oil model compound, over Pt/ZrO2 and Pt/CeO2 catalysts. In the absence of oxygen, all catalysts suffered from deactivation. Acetone, formed via condensation/dehydration of acetic acid, is a coke precursor and causes catalyst deactivation. The use of a support with red-ox properties and the presence of oxygen improved the stability of the Pt/CeO2 catalyst tremendously. Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) characterization of coke indicates that the presence of oxygen prevents extensive oligomerization/coke forming reactions and that the resulting specie are more easily combusted. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：38 / 44

页数：7

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