TEMPERATURE-PROGRAMMED-REDUCTION STUDIES OF Ni/SiO//2 CATALYSTS.

Yu Wen Chen, Syh Ching Wang, Wen Tzong Liu

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

A series of Ni/SiO//2 catalysts prepared by impregnation and precipitation methods has been studied by X-ray diffraction and temperature-programmed-reduction. The results clearly indicate that the preparation methods as well as Ni metal loading have great influence on the surface Ni species. Preparation of catalysts by precipitation tends to enhance the Ni-support interaction. In impregnated catalysts, the major Ni species is bulk-like NiO at all loadings. In precipitated ones, the major NI species are nickel antigorite-like species. Surface Ni species depend on Ni loading in the case of precipitated Ni/SiO//2. This may be due to the multiple sites available on the supports.

Original languageEnglish
Pages (from-to)49-52
Number of pages4
JournalJournal of the Chinese Institute of Chemical Engineers
Volume18
Issue number1
StatePublished - Jan 1987

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