Structural and catalytic properties of supported Ni-Ir alloy catalysts for H-2 generation via hydrous hydrazine decomposition
文献类型：期刊论文
| 作者 | He, Lei1,2; Huang, Yanqiang1; Liu, Xiao Yan1; Li, Lin1; Wang, Aiqin1; Wang, Xiaodong1; Mou, Chung-Yuan3; Zhang, Tao1 |
| 刊名 | applied catalysis b-environmental
 |
| 出版日期 | 2014-04-05 |
| 卷号 | 147页码:779-788 |
| 关键词 | Nickel-iridium alloy Hydrazine Hydrogen storage EXAFS Microcalorimeter |
| 英文摘要 | iridium modified ni/al2o3 catalysts were prepared using ni-al hydrotalcite as precursor and tested in the selective decomposition of hydrous hydrazine for h-2 generation. compared to ni/al2o3, niir/al2o3 catalysts exhibited an increase of the reaction rate up to 6-fold and the h-2 selectivity from 93% to above 99%. the xrd and exafs analysis confirmed that ir and ni were present in the form of ni-ir alloy; and the h-2 differential heat of adsorption is appreciably lowered with increasing the amount of ir in ni-ir alloy. high-temperature reduction, e.g. 700 degrees c, induced the migration of ir atoms into the ni bulk and produced a ni-skin surface. this structural modification is associated with a strongly decrease of activity and selectivity. exafs measurements were also performed on different noble metals (nm, ir, pt, and au) modified ni/al2o3 catalysts in order to verify the extent of nm-ni bimetallic bond formation, which was found to correlate with the catalytic performance. (c) 2013 elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | chemistry, physical ; engineering, environmental ; engineering, chemical |
| 研究领域[WOS] | chemistry ; engineering |
| 关键词[WOS] | highly efficient catalyst ; bimetallic catalysts ; room-temperature ; surface alloys ; 1st principles ; storage ; nanoparticles ; segregation ; reactivity ; clusters |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000330489400084 |
| 公开日期 | 2016-05-09 |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/145541]  |
| 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 100049, Peoples R China 3.Natl Taiwan Univ, Dept Chem, Taipei 10617, Taiwan |
| 推荐引用方式 GB/T 7714 | He, Lei,Huang, Yanqiang,Liu, Xiao Yan,et al. Structural and catalytic properties of supported Ni-Ir alloy catalysts for H-2 generation via hydrous hydrazine decomposition[J]. applied catalysis b-environmental,2014,147:779-788. |
| APA | He, Lei.,Huang, Yanqiang.,Liu, Xiao Yan.,Li, Lin.,Wang, Aiqin.,...&Zhang, Tao.(2014).Structural and catalytic properties of supported Ni-Ir alloy catalysts for H-2 generation via hydrous hydrazine decomposition.applied catalysis b-environmental,147,779-788. |
| MLA | He, Lei,et al."Structural and catalytic properties of supported Ni-Ir alloy catalysts for H-2 generation via hydrous hydrazine decomposition".applied catalysis b-environmental 147(2014):779-788. |
入库方式： OAI收割
来源：大连化学物理研究所
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