Enhanced performance of Ca-doped Pt/gamma-Al2O3 catalyst for cyclohexane dehydrogenation
文献类型：期刊论文
| 作者 | Yu, Jiafeng1,3; Ge, Qingjie1; Fang, Wen1,3; Xu, Hengyong1,2 |
| 刊名 | international journal of hydrogen energy
 |
| 出版日期 | 2011-09-01 |
| 卷号 | 36期号:18页码:11536-11544 |
| 关键词 | Ca promoter Hydrogen spillover Pt/Al2O3 Coke resistance Acidity |
| 英文摘要 | the promotion effects of ca on catalytic performance of ca-doped pt/al2o3 catalyst were investigated by varying ca content and impregnation orders. the ca-doped pt/al2o3 catalyst with atomic rate ca/pt = 5 exhibited the highest catalytic activity and stability. detailed analyses show that low ca content (ca/pt < 5) could not efficiently promote hydrogen spillover from pt-al interface to the support and reduce the strong acid sites on the support. however, high ca content (ca/pt > 5) decreases the initial activity due to the coverage of ca on the support and increases the amount of pt strongly interacting with ca, which inhibits pt reduction. furthermore, the ca promotion effect is more pronounced when ca is added prior to pt due to surface modification of ca on al2o3 support. this modified catalyst possesses more dispersed pt, lower acidity and larger amount of spilled-over hydrogen. copyright (c) 2011, hydrogen energy publications, llc. published by elsevier ltd. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | chemistry, physical ; electrochemistry ; energy & fuels |
| 研究领域[WOS] | chemistry ; electrochemistry ; energy & fuels |
| 关键词[WOS] | spray-pulsed conditions ; heterogeneous catalysis ; hydrogen-production ; platinum catalysts ; ni/al2o3 catalyst ; basic catalysts ; oxide catalysts ; spillover ; sites ; storage |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000294982800005 |
| 公开日期 | 2015-11-17 |
| 源URL | [http://159.226.238.44/handle/321008/142299]  |
| 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.Chinese Acad Sci, Dalian Inst Chem Phys, Lab Appl Catalysis, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China 3.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yu, Jiafeng,Ge, Qingjie,Fang, Wen,et al. Enhanced performance of Ca-doped Pt/gamma-Al2O3 catalyst for cyclohexane dehydrogenation[J]. international journal of hydrogen energy,2011,36(18):11536-11544. |
| APA | Yu, Jiafeng,Ge, Qingjie,Fang, Wen,&Xu, Hengyong.(2011).Enhanced performance of Ca-doped Pt/gamma-Al2O3 catalyst for cyclohexane dehydrogenation.international journal of hydrogen energy,36(18),11536-11544. |
| MLA | Yu, Jiafeng,et al."Enhanced performance of Ca-doped Pt/gamma-Al2O3 catalyst for cyclohexane dehydrogenation".international journal of hydrogen energy 36.18(2011):11536-11544. |
入库方式： OAI收割
来源：大连化学物理研究所
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