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| CoOx/CeO2催化剂上的CO低温氧化反应 | |
| 引用本文： | 邵建军,张平,唐幸福,张保才,刘俊龙,徐奕德,申文杰.CoOx/CeO2催化剂上的CO低温氧化反应[J].催化学报,2006,27(11):937-939. |
| 作者姓名： | 邵建军 张平 唐幸福 张保才 刘俊龙 徐奕德 申文杰 |
| 作者单位： | 1. 装甲兵工程学院装备再制造国防科技重点实验室,北京,100072;中国科学院大连化学物理研究所催化基础国家重点实验室,辽宁大连,116023 2. 装甲兵工程学院装备再制造国防科技重点实验室,北京,100072 3. 中国科学院大连化学物理研究所催化基础国家重点实验室,辽宁大连,116023 |
| 摘 要： | 采用沉淀氧化法制备了CoOx/CeO2催化剂, 并分别在干燥和含有水汽的原料气中进行了CO的氧化反应. 结果发现, CoOx/CeO2复合氧化物催化剂具有良好的CO低温氧化活性和抗水性. 在干燥的原料气中和196 K的条件下,该催化剂催化氧化CO的转化率可连续400 min以上保持在99%; 当温度升高到298 K反应 2400 min后, CO的转化率可达到94%. 而当反应气中含有3.1%的水汽时, 在383 K下反应2400 min后, CO的转化率仍可保持在79%. |
| 关 键 词： | 氧化钴 氧化铈 一氧化碳 氧化 低温 |
| 文章编号： | 0253-9837（2006）11-0937-03 |
| 收稿时间： | 06 12 2006 12:00AM |
| 修稿时间： | 2006-06-12 |
A CoOx/CeO2 Catalyst for Low-Temperature CO Oxidation |
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| SHAO Jianjun,ZHANG Ping,TANG Xingfu,ZHANG Baocai,LIU Junlong,XU Yide,SHEN Wenjie.A CoOx/CeO2 Catalyst for Low-Temperature CO Oxidation[J].Chinese Journal of Catalysis,2006,27(11):937-939. | |
| Authors: | SHAO Jianjun ZHANG Ping TANG Xingfu ZHANG Baocai LIU Junlong XU Yide SHEN Wenjie |
| Institution: | 1 National Key Laboratory Jor Remanufaeturing, Academy of Armored Force Engineering, Beijing 100072, China ; 2 State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, The Chinese Academy of Sciences, Dalian 116023 , Liaoning , China |
| Abstract: | A CoO_x/CeO_2 catalyst was prepared by the co-precipitation-oxidation method, and its catalytic performance for CO oxidation was investigated under humid and dry conditions ,respectively. The CoO_x/CeO_2 catalyst exhibited excellent activity and good resistance to water vapor poisoning. Remarkably, 99% CO conversion could be achieved at 196 K for more than 400 min under dry condition, and when the reaction was carried out at 298 K, the conversion of CO was maintained at 94% after 2400 min. Even when 3.1% of water was added, the conversion of CO was still kept at 79% after 2400 min on-stream at 383 K. |
| Keywords: | cobalt oxide ceria carbon monoxide oxidation low temperature |
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