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题名: XRD and XPS studies on the ultra-uniform Raney-Ni catalyst prepared from the melt-quenching alloy
作者: Lei, H;  Song, Z;  Bao, XH;  Mu, XH;  Zong, BN;  Min, EZ
关键词: XRD ;  XPS ;  Raney-Ni ;  melt-quenching ;  hydrogen pretreatment
刊名: SURFACE AND INTERFACE ANALYSIS
发表日期: 2001-08-01
卷: 32, 期:1, 页:210-213
收录类别: ISTP ;  SCI
文章类型: Article
部门归属: 5018
项目归属: 502
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: We present a novel method for preparing an ultra-uniform Raney-Ni catalyst, which includes melt-quenching, hydrogen treatment and leaching in an alkali solution. The resultant catalyst shows superior activity in the reaction of cyclohexanone hydrogenation. X-ray diffraction (XRD) and XPS have been employed to characterize the catalysts. As demonstrated, the pretreatment with hydrogen caused a distinct phase transfer of the Ni-Al alloys, forming more of the Ni2Al3 component. In the subsequent leaching process, the Ni2Al3 component shows high activity and the resultant catalyst exhibits high surface areas and small pores. Moreover, metallic Al in the hydrogen-pretreated alloy appeared to be leached more easily and thus the aluminium species remaining on the catalyst surface is aluminium oxide predominantly, which serves as a matrix to stabilize active Ni species on the surface. Copyright (C) 2001 John Wiley & Sons, Ltd.
关键词[WOS]: RAY PHOTOELECTRON-SPECTROSCOPY ;  HYDROGEN
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000170551800046
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/92031
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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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

Recommended Citation:
Lei, H,Song, Z,Bao, XH,et al. XRD and XPS studies on the ultra-uniform Raney-Ni catalyst prepared from the melt-quenching alloy[J]. SURFACE AND INTERFACE ANALYSIS,2001,32(1):210-213.
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