Synthesis of mesoporous Ni-La2O3/SiO2 by ploy(ethylene glycol)-assisted sol-gel route as highly efficient catalysts for dry reforming of methane with a H2/CO ratio of unity
Synthesis of mesoporous Ni-La2O3/SiO2 by ploy(ethylene glycol)-assisted sol-gel route as highly efficient catalysts for dry reforming of methane with a H2/CO ratio of unity
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DOI：
10.1016/j.catcom.2017.02.018
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发表时间：
2017-05-05
影响因子：
3.7
通讯作者：
Lu, Xionggang
中科院分区：
文献类型：
--
作者：
Chen, Chenju;Wang, Xueguang;Lu, Xionggang
Mesoporous silica-supported Ni-La oxides with homogeneously-dispersed NiO nanoparticles were first synthesized via one-pot sol-gel route of tetraethoxysilane, metal nitrates, and poly(ethylene glycol). Upon reduction with H-2, the NiO nanoparticles were reduced to in situ generate metallic Ni particles distributed in the matrices. The obtained Ni-La2O3/SiO2 catalysts exhibited high activity and excellent stability for DRM with an almost 100% H-2 selectivity or a H-2/CO molar ratio of unity. The presence of La significantly inhibited the reverse water gas shift reaction, resulting in a H-2/CO ratio close to unity. (C) 2017 Elsevier B.V. All rights reserved.
