Catalytic decomposition of alcohols over size-selected Pt nanoparticles supported on ZrO2: A study of activity, selectivity, and stability

被引：43
作者：
Mostafa, S. [1 ,2 ]
Croy, Jason R. [1 ]
Heinrich, H. [1 ,3 ]
Roldan Cuenya, B. [1 ,2 ,4 ]
机构：
[1] Univ Cent Florida, Dept Phys, Orlando, FL 32816 USA
[2] Univ Cent Florida, Dept Civil Environm & Construct Engn, Orlando, FL 32816 USA
[3] Univ Cent Florida, Adv Mat Proc & Anal Ctr, Orlando, FL 32816 USA
[4] Univ Cent Florida, Nanosci & Technol Ctr, Orlando, FL 32816 USA
来源：
APPLIED CATALYSIS A-GENERAL | 2009年 / 366卷 / 02期
关键词：
Pt; Nanoparticles; ZrO2; Catalyst; Methanol; Ethanol; Propanol; Butanol; Mass flow reactor; Mass spectrometry; TEMPERATURE METHANOL DECOMPOSITION; CHROMATOGRAPH INJECTION PORT; CHEMICAL HEAT-PUMP; PARTIAL OXIDATION; HYDROGEN-PRODUCTION; FUEL-CELLS; IN-SITU; ETHANOL DECOMPOSITION; PALLADIUM CATALYSTS; OXIDE CATALYSTS;
D O I：
10.1016/j.apcata.2009.07.028
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：
This article discusses the performance of ZrO2-supported size-selected Pt nanoparticles for the decomposition of methanol, ethanol, 2-propanol, and 2-butanol. The potential of each alcohol for the production of H-2 and other relevant products in the presence of a catalyst is studied in a packed-bed mass flow reactor operating at atmospheric pressure. All the alcohols studied show some decomposition activity below 200 degrees C which increased with increasing temperature. In all cases, high selectivity towards H-2 formation is observed. With the exception of methanol, all alcohol conversion reactions lead to catalyst deactivation at high temperatures (T > 250 degrees C for 2-propanol and 2-butanol, T > 325 degrees C for ethanol) due to carbon poisoning. However, long-term catalyst deactivation can be avoided by optimizing reaction conditions such as operating temperature. (C) 2009 Elsevier B.V. All rights reserved.
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收藏
页码：353 / 362
页数：10
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