期刊
CATALYSIS COMMUNICATIONS
卷 73, 期 -, 页码 54-57出版社
ELSEVIER
DOI: 10.1016/j.catcom.2015.10.009
关键词
Carbon dioxide reforming of methane; Syngas; Bimetallic nickel-cobalt particles; Coke; Catalyst stability
资金
- National Basic Research Program of China [2011CB201405]
A series of Ni-Co/Si3N4 catalysts with different Ni/Co ratios were prepared via reactions between commercial silicon nitride (Si3N4) and metal halides (i.e., NiCl2 and CoF3) at high temperature (930 degrees C). By using X-ray diffraction and electron microscopy, it was shown that this method of catalyst preparation leads to formation of bimetallic Ni-Co nanoparticles encapsulated by a SiNx layer (Ni-Co@SiNx) on supporting Si3N4 material. The 4.0Ni-3.6Co/Si3N4 catalyst was highlighted by showing highly stable catalysis for stoichiometric CO2 reforming of methane under widely varied reaction conditions, and was found completely free of coke formation after CRM reaction for 100 h. (C) 2015 Elsevier B.V. All rights reserved.
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