Enhanced catalytic performance of Ir catalysts supported on ceria-based solid solutions for methane dry reforming reaction
- Wang, Fagen
- Xu, Leilei
- Yang, Juan
- Zhang, Jian
- Zhang, Longzhu
- Li, Hui
- Zhao, Yu
- Li, He Xing
- Wu, Kai
- Xu, Guo Qin
- Chen, Wei
Publication date
January 2017
DOI Publisher
13th International Conference on Carbon Dioxide Utilization (ICCDU) ISSN
0920-5861 Journal
issn:1873-4308 Citation count (estimate)
7Abstract
Methane dry reforming reaction was investigated over Ir catalysts supported on ceria-based solid solutions. The doping of Pr6O11 or ZrO2 into the matrix of ceria yields more oxygen defects, resulting in an improved redox property and enhanced metal-support interaction in Ir/Ce0.9M0.1O2 (M = Pr, Zr) catalysts compared to Ir/CeO2 catalyst. The Ir/Ce0.9M0.1O2 (M= Pr, Zr) catalysts showed higher catalytic performance and better stability than the Ir/CeO2 catalyst, which were assigned to positive effects of doping in maintaining Ir nanoparticles, stabilizing catalyst structure, and the strong metal-support interaction in reducing carbon deposition. (C) 2016 Elsevier B.V. All rights reserved.CPCI-S(ISTP),SI295-30328
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