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Where Does the Sulphur Go? Deactivation of a Low Temperature CO Oxidation Catalyst by Sulphur Poisoning

János Szanyi,Donghai Mei,Tamás Varga,Charles H. F. Peden,Iljeong Heo,Se Oh,Chang Hwan Kim

Catalysis Letters（2018）

Cited 2|Views22
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Abstract
Sulphate formation, occurring preferentially at the CuO/CeOx–ZrOx interface, is responsible for the deactivation of low temperature CO oxidation catalysts. XRD, FTIR and isotope exchange experiments, as well as DFT calculations, reveal the poisoning mechanism of sulphate formation on the CeOx/ZrOx support material. Graphical Abstract
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Key words
Cu on CeOx/ZrOx,CO oxidation,Sulphur poisoning,Metal oxide interface
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