Journal
APPLIED SURFACE SCIENCE
Volume 409, Issue -, Pages 291-295Publisher
ELSEVIER
DOI: 10.1016/j.apsusc.2017.02.220
Keywords
Carbon-supported catalyst; Copper; Sibunit; Methanol dehydrogenation; Methyl formate
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Funding
- Russian Foundation for Basic Research [16-38-00095]
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Carbon-supported copper catalyst was prepared by incipient wetness impregnation of Sibunit with an aqueous solution of copper nitrate. Copper loading was 5 wt.%. Temperature of reductive pretreatment was varied within a range of 200-400 degrees C. The samples were characterized by transmission electron microscopy, X-ray diffraction analysis, X-ray photoelectron and X-ray absorption spectroscopies. Catalytic activity of the samples was studied in a reaction of methanol dehydrogenation. Silica-based catalyst with similar copper loading was used as a reference. It was found that copper is distributed over the surface of support in the form of metallic and partially oxidized particles of about 12-17 nm in size. Diminished interaction of copper with support was supposed to be responsible for high catalytic activity. (C) 2017 Published by Elsevier B.V.
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