Surface modification of Ni/Al2O3 with Pt: Highly efficient catalysts for H-2 generation via selective decomposition of hydrous hydrazine
文献类型：期刊论文
| 作者 | He, Lei1,2; Huang, Yanqiang1; Wang, Aiqin1; Liu, Yu1; Liu, Xiaoyan1; Chen, Xiaowei3; Jose Delgado, Juan3; Wang, Xiaodong1; Zhang, Tao1 |
| 刊名 | journal of catalysis
 |
| 出版日期 | 2013-02-01 |
| 卷号 | 298页码:1-9 |
| 关键词 | Hydrous hydrazine Hydrogen storage Pt-Ni alloy EXAFS TPD |
| 英文摘要 | hydrous hydrazine, such as hydrazine monohydrate (n2h4 center dot h2o), is a promising hydrogen carrier material due to its high content of hydrogen (8.0 wt%). the decomposition of hydrous hydrazine to h-2 with a high selectivity and a high activity under mild conditions is the key to its potential usage as a hydrogen carrier material. platinum-modified ni/al2o3 catalysts (niptx/al2o3) were prepared starting from ni-al hydrotalcite and tested in the decomposition of hydrous hydrazine. compared with ni/al2o3, the tof was enhanced sevenfold over nipt0.057/al2o3; meanwhile, the selectivity to h-2 was increased to 98%. characterization results by means of haadf-stem, xrd, and exafs revealed the presence of surface pt-ni alloy in this pt-promoted catalyst. the formation of pt-ni alloy could significantly weaken the interaction between adspecies produced (including h-2 and nhx) and surface ni atoms, which is confirmed by microcalorimetry and tpd results. the weakening effect could account for the greatly enhanced reaction rate, as well as h-2 selectivity on niptx/al2o3 catalysts. (c) 2012 elsevier inc. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | chemistry, physical ; engineering, chemical |
| 研究领域[WOS] | chemistry ; engineering |
| 关键词[WOS] | bimetallic catalysts ; room-temperature ; storage ; ni ; adsorption ; nickel ; dehydrogenation ; hydrogenation ; methane ; alloys |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000316155700001 |
| 公开日期 | 2015-11-10 |
| 源URL | [http://159.226.238.44/handle/321008/137746]  |
| 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, State Key Lab Catalysis, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 3.Univ Cadiz, Fac Ciencias, Dept Ciencia Mat & Ingn Met & Quim Inorgan, Cadiz, Spain |
| 推荐引用方式 GB/T 7714 | He, Lei,Huang, Yanqiang,Wang, Aiqin,et al. Surface modification of Ni/Al2O3 with Pt: Highly efficient catalysts for H-2 generation via selective decomposition of hydrous hydrazine[J]. journal of catalysis,2013,298:1-9. |
| APA | He, Lei.,Huang, Yanqiang.,Wang, Aiqin.,Liu, Yu.,Liu, Xiaoyan.,...&Zhang, Tao.(2013).Surface modification of Ni/Al2O3 with Pt: Highly efficient catalysts for H-2 generation via selective decomposition of hydrous hydrazine.journal of catalysis,298,1-9. |
| MLA | He, Lei,et al."Surface modification of Ni/Al2O3 with Pt: Highly efficient catalysts for H-2 generation via selective decomposition of hydrous hydrazine".journal of catalysis 298(2013):1-9. |
入库方式： OAI收割
来源：大连化学物理研究所
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