An active and coke-resistant dry reforming catalyst comprising nickel-tungsten alloy nanoparticles

被引:44
作者
Zhang, Shaohua [1 ]
Shi, Chuan [1 ]
Chen, Bingbing [1 ]
Zhang, Yali [1 ]
Qiu, Jieshan [1 ]
机构
[1] Dalian Univ Technol, Lab Plasma Phys Chem, Dalian, Peoples R China
基金
中国国家自然科学基金;
关键词
Methane; Carbon dioxide; Tungsten carbide; Nickel; CARBON-DIOXIDE; SYNTHESIS GAS; METHANE; DECOMPOSITION; MOLYBDENUM; DEPOSITION; CONVERSION;
D O I
10.1016/j.catcom.2015.06.003
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
Nickel catalysts catalyzing the DRM reaction have the problems of sintering and coking. Herein we proposed an idea of stabilizing nickel by Ni17W3 alloy, and alpha-WC formed during the DRM reaction participated in the CO2 activation, leading to a better coke resistance of Ni17W3/SiO2 catalyst. Due to better Ni dispersion and less coke deposition, Ni17W3/SiO2 catalyst exhibits an improved catalytic stability for the DRM reaction compared with the model Ni/SiO2 catalyst. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码:123 / 128
页数:6
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