@inproceedings{a01000de14ef46c494d12abca0ca8f33,
title = "Nano-sized Au/CeO2 catalysts for total and selective CO oxidation",
abstract = "Au/CeO2 catalysts prepared by a deposition-precipitation and a co-precipitation method were applied to CO oxidation in the absence and presence of hydrogen. The transmission electron microscope (TEM), the temperature programmed reduction (TPR), and the X-ray absorption near edge structure (XANES) were conducted to probe structural and electronic properties of gold. Au 2O3 was determined to be mainly present when Au/CeO 2 was prepared by a deposition-precipitation method. However, the metallic gold was observed in a co-precipitated Au/CeO2 catalyst. Au/CeO2 containing oxidized gold species, prepared by a deposition-precipitation method, showed the decreasing CO conversion with a reaction time, which accompanied the reduction of gold from Au(+3) to Au(O). However, co-precipitated Au/CeO2 showed the stable CO conversion. The effect of pretreatment condition on CO oxidation was also examined. These results support that Au/CeO2 catalyst containing oxidized gold species was superior to Au/CeO2 catalyst containing the metallic gold for CO oxidation. This Au/CeO2 catalyst was also active for the selective CO oxidation in the presence of hydrogen.",
keywords = "CO oxidation, Fuel cell, Gold catalyst, PROX, Pretreatment",
author = "Ko, {Eun Yong} and Park, {Eun Duck} and Lee, {Hyun Chul} and Doohwan Lee and Soonho Kim",
year = "2007",
doi = "10.4028/3-908451-31-0.1749",
language = "English",
isbn = "3908451310",
series = "Solid State Phenomena",
publisher = "Trans Tech Publications Ltd.",
number = "PART 2",
pages = "1749--1752",
booktitle = "Advances in Nanomaterials and Processing - IUMRS - ICA - 2006 International Conference in Asia",
address = "Switzerland",
edition = "PART 2",
note = "IUMRS International Conference in Asia 2006, IUMRS-ICA 2006 ; Conference date: 10-09-2006 Through 14-09-2006",
}