期刊
APPLIED CATALYSIS A-GENERAL
卷 506, 期 -, 页码 268-277出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apcata.2015.09.018
关键词
Copper/ceria; Iron; CO-PROX; Hydrogen
资金
- Italian MIUR [RBFR10S4OW]
In this work the effect of Fe addition to copper/ceria catalysts on the catalytic activity toward CO-PROX reaction has been studied and related to the modification of textural and redox properties induced by iron. Catalysts have been characterized by the use of BET surface area measure, X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), X-ray photoelectron spectroscopy (XPS) and TPR with different reducing mixtures (CO/N-2 and/or H-2/N-2). Results show that iron promotes a superficial enrichment of highly dispersed copper sites improving catalyst reducibility, especially under CO-containing mixture, thus resulting in an enhanced selectivity of CO-PROX reaction. (C) 2015 Elsevier B.V. All rights reserved.
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