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学科主题物理化学
Highly Efficient and Stable Au/FexOyHAP Catalyst for CO Oxidation
Zhao KF(赵昆峰); Qiao BT(乔波涛); Wang JH(王军虎); Zhang YJ(张彦杰); Yin J(尹杰); Jin ZZ(金长子); Zhang T(张涛)
会议文集论文集
会议名称ICEC 2010
会议日期2010-9-12
2011
会议地点北京
页码243-0
出版者待补充
出版地待补充
合作性质墙报
部门归属1501
主办者CAS
英文摘要The CO oxidation is very important of practical application for the control of environmental pollution, the purification of industrial emissions, and the CO preferential oxidation in fuel cell. Hopcalite catalysts (mainly composed of MnOx and CuO) and supported Pt, Pd, Ru, Rh catalysts are two kinds of important catalysts for CO oxidation. However, all of them have high activity only at relatively high temperature. Since the exciting finding by Haruta and co-workers [1] that supported gold catalysts with high activity even at temperature below 0 oC, various Au-containing catalysts has been investigated and found to be active for low-temperature CO oxidation. However, most of them exhibit very poor stability at anti-sintering. Therefore, searching for new catalysts which have both excellent activity and ultra stability becomes one important task. To achieve this aim, many approaches have been conducted by many groups, for example, using the mixed oxide as support, modifying the support surface by PO43-, NO3-, SO42- or developing new supports like metal phosphate. These approaches, to some degree, improved the stability of the catalysts to resist sintering at high temperature, but actually made them more easily deactive on stream. Here, we report one kind of novel hydroxyapatite (HAP)-based catalyst, Au/FexOyHAP, which not only exhibits high activity even after 400 oC sintered, but also very stable on stream.; The CO oxidation is very important of practical application for the control of environmental pollution, the purification of industrial emissions, and the CO preferential oxidation in fuel cell. Hopcalite catalysts (mainly composed of MnOx and CuO) and supported Pt, Pd, Ru, Rh catalysts are two kinds of important catalysts for CO oxidation. However, all of them have high activity only at relatively high temperature. Since the exciting finding by Haruta and co-workers [1] that supported gold catalysts with high activity even at temperature below 0 oC, various Au-containing catalysts has been investigated and found to be active for low-temperature CO oxidation. However, most of them exhibit very poor stability at anti-sintering. Therefore, searching for new catalysts which have both excellent activity and ultra stability becomes one important task. To achieve this aim, many approaches have been conducted by many groups, for example, using the mixed oxide as support, modifying the support surface by PO43-, NO3-, SO42- or developing new supports like metal phosphate. These approaches, to some degree, improved the stability of the catalysts to resist sintering at high temperature, but actually made them more easily deactive on stream. Here, we report one kind of novel hydroxyapatite (HAP)-based catalyst, Au/FexOyHAP, which not only exhibits high activity even after 400 oC sintered, but also very stable on stream.
语种英语
文献类型会议论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/115923
专题中国科学院大连化学物理研究所
通讯作者Zhang T(张涛)
推荐引用方式
GB/T 7714
Zhao KF,Qiao BT,Wang JH,et al. Highly Efficient and Stable Au/FexOyHAP Catalyst for CO Oxidation[C]. 待补充:待补充,2011:243-0.
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