標題: | The effect of the morphology of nanocrystalline CeO2 on ethanol reforming |
作者: | Hsiao, Wei-In Lin, Ya-Shiuan Chen, Yu-Chie Lee, Chi-Shen 應用化學系 應用化學系分子科學碩博班 Department of Applied Chemistry Institute of Molecular science |
公開日期: | 25-六月-2007 |
摘要: | CeO2 nanocrystals of cubic and rod shape have been synthesized under hydrothermal conditions on controlling the pH, temperature and duration of reaction. High-resolution transmission electron microscopy indicates that exposed crystal planes are {110} and {100} for rods but {100} for cubes. These nanocrystals have been used in the preparation of a Rh/CeO2 catalyst on an Al2O3 support to test the catalytic activity for ethanol reforming. These catalysts as prepared show good H-2 selectivity compared to catalysts with irregular CeO2 nanoparticles. The {100}/{110}-dominant surface structures play a crucial role in enhancing ethanol reforming; this reaction is important for fuel-cell applications. (c) 2007 Elsevier B.V. All rights reserved. |
URI: | http://dx.doi.org/10.1016/j.cplett.2007.05.024 http://hdl.handle.net/11536/10672 |
ISSN: | 0009-2614 |
DOI: | 10.1016/j.cplett.2007.05.024 |
期刊: | CHEMICAL PHYSICS LETTERS |
Volume: | 441 |
Issue: | 4-6 |
起始頁: | 294 |
結束頁: | 299 |
顯示於類別: | 期刊論文 |