Reduction of Pd/ZnO catalyst and its catalytic activity for steam reforming of methanol
文献类型：期刊论文
| 作者 | Wang Yanhua; Zhang Jingchang; Xu Hengyong; Bai Xuefeng |
| 刊名 | chinese journal of catalysis
 |
| 出版日期 | 2007-03-01 |
| 卷号 | 28期号:3页码:234-238 |
| 关键词 | palldium zinc oxide supported catalyst steam reforming of methanol PdZn alloy active species reduction |
| 英文摘要 | the effect of reduction temperature of the coprecipitated 15.9 % pd/zno catalyst on the catalytic activity for steam reforming of methanol was investigated. the results showed that methanol conversion at 523 k reached a maximum of 41.6 % with a co2 selectivity of 94.6 % and an outlet co concentration of 1.26 % over the catalyst reduced at 523-573 k. x-ray diffraction analysis revealed that a pdzn alloy began to form at a reduction temperature of 523 k. the improvement in activity at reduction temperature ranging from 523 to 573 k was attributed to the formation of the pdzn alloy with crystal size of 5-14 nm. the interaction between pd and zno upon reduction was also explored by means of temperature-programmed reduction and x-ray diffraction. the results demonstrated that the reduction over pd/zno might undergo a process pdo/zno -> pd/zno -> pdzno1-x/zno -> pdzn alloy/zno. the pdzn alloy was found to be partially oxidized to pdzno1-x again during the reaction. the pdzn alloy and pdzno1-x species might be the real active species. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | chemistry, applied ; chemistry, physical ; engineering, chemical |
| 研究领域[WOS] | chemistry ; engineering |
| 关键词[WOS] | temperature-programmed reduction ; supported palladium catalysts ; fuel-cells ; hydrogen ; performance ; copper |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000245616800011 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/140487]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Heilongjiang Inst Petrochem, Harbin 150040, Heilongjiang, Peoples R China 2.Beijing Univ Chem Technol, Inst Modern Catalysis, Beijing 100029, Peoples R China 3.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang Yanhua,Zhang Jingchang,Xu Hengyong,et al. Reduction of Pd/ZnO catalyst and its catalytic activity for steam reforming of methanol[J]. chinese journal of catalysis,2007,28(3):234-238. |
| APA | Wang Yanhua,Zhang Jingchang,Xu Hengyong,&Bai Xuefeng.(2007).Reduction of Pd/ZnO catalyst and its catalytic activity for steam reforming of methanol.chinese journal of catalysis,28(3),234-238. |
| MLA | Wang Yanhua,et al."Reduction of Pd/ZnO catalyst and its catalytic activity for steam reforming of methanol".chinese journal of catalysis 28.3(2007):234-238. |
入库方式： OAI收割
来源：大连化学物理研究所
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