Catalytic performance and structural characterization of ferric oxide and its composite oxides supported gold catalysts for low-temperature CO oxidation | Zendy

Zhengping Hao | Zendy; Lidun An | Zendy; Hongli Wang | Zendy

Open Access

Catalytic performance and structural characterization of ferric oxide and its composite oxides supported gold catalysts for low-temperature CO oxidation

Author(s) -

Zhengping Hao,

Lidun An,

Hongli Wang

Publication year - 2001

Publication title -

science in china series b chemistry

Language(s) - English

Resource type - Journals

eISSN - 1862-2771

pISSN - 1006-9291

DOI - 10.1007/bf02891684

Subject(s) - catalysis , x ray photoelectron spectroscopy , ferric , oxidation state , oxide , x ray absorption fine structure , composite number , materials science , iron oxide , inorganic chemistry , chemical engineering , chemistry , spectroscopy , metallurgy , organic chemistry , composite material , physics , quantum mechanics , engineering

The preparation and catalytic activity of ferric oxide and its composite oxides supported gold catalysts for low-temperature CO oxidation were investigated detailedly, and characterized extensively by XRD, XPS, TPR, EC and XAFS techniques. It was found that containing highly dispersed Au of partially oxidized state, these nano-structured oxides supported Au/Fe2O3 and Au/NiFe2O4 catalysts had higher low-temperature activities. The possible catalytic active center is the gold of partially oxidized state (Auζ+).

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