Interaction between Pd and ZnO during reduction of Pd/ZnO catalyst for steam reforming of methanol to hydrogen
文献类型：期刊论文
| 作者 | Wang, YH; Zhang, JC; Xu, HY |
| 刊名 | chinese journal of catalysis
 |
| 出版日期 | 2006-03-01 |
| 卷号 | 27期号:3页码:217-222 |
| 关键词 | palladium zinc oxide methanol steam reforming manufacture of hydrogen reduction |
| 英文摘要 | the changes in catalyst structure and species and charge transfer during the reduction of a co-precipitated pd/zno catalyst with 15.9% pd were investigated by temperature-programmed reduction, temperature-programmed desorption, temperature-programmed electronic conductivity, and x-ray diffraction. the effect of reduction temperature of the catalyst on the catalytic performance in steam reforming of methanol was also tested. the results showed that metallic pd highly dispersed on zno over pd/zno. the strong interaction between pd and zno during the catalyst reduction with hydrogen led to hydrogen spillover from pd to zno, which caused the reduction of zno near the metallic pd and the formation of pdzn alloy. the reduction process proceeded as follows: pdo/zno -> pd/zno -> pdzno1-x/zno -> amorphous pdzn alloy/zno -> crystalline pdzn alloy/zno. metallic pd was present in a finely dispersed and amorphous-like state in pd/zno prepared by co-precipitation, and because of that pdzn alloy could be formed at lower temperature than reported in the literature. when catalysts were reduced in the temperature range from 523 k to 573 k, pdzn alloy with size of 5 similar to 14 nm was obtained. at this moment, methanol conversion and co2 selectivity reached maxima. |
| 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 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000236753400006 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/140245]  |
| 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.Beijing Univ Chem Technol, Sch Sci, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, YH,Zhang, JC,Xu, HY. Interaction between Pd and ZnO during reduction of Pd/ZnO catalyst for steam reforming of methanol to hydrogen[J]. chinese journal of catalysis,2006,27(3):217-222. |
| APA | Wang, YH,Zhang, JC,&Xu, HY.(2006).Interaction between Pd and ZnO during reduction of Pd/ZnO catalyst for steam reforming of methanol to hydrogen.chinese journal of catalysis,27(3),217-222. |
| MLA | Wang, YH,et al."Interaction between Pd and ZnO during reduction of Pd/ZnO catalyst for steam reforming of methanol to hydrogen".chinese journal of catalysis 27.3(2006):217-222. |
入库方式： OAI收割
来源：大连化学物理研究所
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