Preparation of novel Raney-Ni catalysts and characterization by XRD, SEM and XPS
文献类型：期刊论文
| 作者 | Lei, H; Song, Z; Tan, DL; Bao, XH; Mu, XH; Zong, BN; Min, EZ |
| 刊名 | applied catalysis a-general
 |
| 出版日期 | 2001-06-15 |
| 卷号 | 214期号:1页码:69-76 |
| 关键词 | Raney-Ni melt-quenching H-2-pretreatment hydrogenation cyclohexanone |
| 英文摘要 | in the present paper, we report on a novel procedure for preparing high performance raney-ni catalysts, which includes preparation of ni-ai ribbons by melt-quenching. pretreatment with hydrogen and activation through al leaching with sodium hydroxide solution. the resultant catalyst exhibits about five times high activity in the catalytic hydrogenation of cyclohexanone than that of the raney-ni catalyst obtained by a conventional preparation method. the structural variations of the catalyst caused by the different pretreatments were characterized by xrd. sem and xps. as demonstrated, melt-quenching and h-2-pretreatment play a crucial role for forming the certain structure being composed of a high density of ni2al3 phase. which, in the subsequent leaching process. benefit to form ultra-uniform raney-ni catalyst with large surface areas. metallic al in hydrogen-pretreated alloys appears to be more easily leached, remaining aluminum as the dominant al-related species on the surface, which acts as a matrix stabilizing the highly dispersed ni and consequently improving the activity of cyclohexanone hydrogenation. (c) 2001 elsevier science b.v. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences ; life sciences & biomedicine |
| 类目[WOS] | chemistry, physical ; environmental sciences |
| 研究领域[WOS] | chemistry ; environmental sciences & ecology |
| 关键词[WOS] | ray photoelectron-spectroscopy ; surface-analysis ; hydrogen ; nickel |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000168765700006 |
| 公开日期 | 2015-11-10 |
| 源URL | [http://159.226.238.44/handle/321008/138831]  |
| 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.Res Inst Petr Proc, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lei, H,Song, Z,Tan, DL,et al. Preparation of novel Raney-Ni catalysts and characterization by XRD, SEM and XPS[J]. applied catalysis a-general,2001,214(1):69-76. |
| APA | Lei, H.,Song, Z.,Tan, DL.,Bao, XH.,Mu, XH.,...&Min, EZ.(2001).Preparation of novel Raney-Ni catalysts and characterization by XRD, SEM and XPS.applied catalysis a-general,214(1),69-76. |
| MLA | Lei, H,et al."Preparation of novel Raney-Ni catalysts and characterization by XRD, SEM and XPS".applied catalysis a-general 214.1(2001):69-76. |
入库方式： OAI收割
来源：大连化学物理研究所
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