期刊
FUEL
卷 236, 期 -, 页码 1254-1262出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.fuel.2018.09.069
关键词
Methane dry reforming; Syngas; Ni/ZnAl2O4-CeO2 nano-catalyst; Co addition; Coke deposition
Ni and Ni-Co catalysts supported on CeO2-ZnAl2O4 have been prepared, characterized and evaluated in the methane dry reforming. The characterization tests showed that the presence of cobalt improved the physical/ chemical properties of the catalyst by increasing surface area, reduction in the active particle size and strengthen the active phase/support interaction which resulted in coke deposit resistance accompanied by little impact on initial activity. In addition to the geometric effects of Co, the higher stability exhibited by Co-doped catalyst could be attributed to the enhancement of coke gasification due to the high tendency of cobalt towards oxygenated species like CO2.
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