期刊
CHEMCATCHEM
卷 7, 期 8, 页码 1280-1284出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cctc.201402983
关键词
dry reforming of methane; heterogeneous catalysis; molecular precursor; nanoparticles; supported catalysts
资金
- Deutsche Forschungsgemeinschaft (DFG)
Supported NiO nanoparticles (NPs) were prepared by impregnation of mesoporous silica SBA-15 with a molecular, metalorganic [Ni4O4] cubane cluster as precursor. By using this ligand-stabilized Ni cluster, deposition of four Ni ions in close proximity on the silica support was achieved; this resulted in the formation of small and highly dispersed NiO NPs after heat treatment. These clusters were shown to have a significant influence on the formation of NiO NPs compared to a conventional Ni(OAc)(2) precursor. After a further reduction step, the materials were used as catalysts for the dry reforming of methane, which showed that preorganization of the Ni atoms on the support surface had a beneficial effect on the methane conversion rate.
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