中国科学院大连化学物理研究所机构知识库
Advanced  
DICP OpenIR  > 中国科学院大连化学物理研究所  > 期刊论文
题名: Structure and Reducibility of NiO-MoO3/gamma-Al2O3 Catalysts: Effects of Loading and Molar Ratio
作者: Wang, Yuguang1;  Xiong, Guang1;  Liu, Xin1;  Yu, Xiaochuan1;  Liu, Liping1;  Wang, Junying2;  Feng, Zhaochi2;  Li, Can2
刊名: JOURNAL OF PHYSICAL CHEMISTRY C
发表日期: 2008-11-06
DOI: 10.1021/jp800182j
卷: 112, 期:44, 页:17265-17271
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Physical ;  Nanoscience & Nanotechnology ;  Materials Science, Multidisciplinary
研究领域[WOS]: Chemistry ;  Science & Technology - Other Topics ;  Materials Science
英文摘要: The effects of loading and molar ratio on the structure and reducibility of NiO-MoO3/gamma-Al2O3 catalysts have been investigated. Particular attention is given to the catalysts with excess of Mo. The catalysts were prepared by impregnation method and characterized by Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), and temperature-programmed reduction techniques. Results from Raman, XPS, and XRD show that different surface species can be formed depending on the loading and molar ratio. At low loading spinel-like NiAl2O4 and dispersed MoO3 are the major species on gamma-Al2O3, With increasing the loading the aggregation of the Mo species occurs. Only at high loading are crystalline beta-NiMoO4 and MoO3 formed on the surface. For the first time, excess Mo was found to promote the formation of beta-NiMoO4 on gamma-Al2O3. The change in the structure of the catalysts has a large influence on their reducibility, suggesting that both the structure and oxidation-reduction properties of the NiO-MoO3/gamma-Al2O3 catalysts can be controlled by varying the loading and molar ratio.
关键词[WOS]: SELECTIVE OXIDATION CATALYSTS ;  MOLYBDENUM OXIDE CATALYSTS ;  NICKEL MOLYBDATE CATALYSTS ;  LASER RAMAN-SPECTROSCOPY ;  MO-O SYSTEM ;  SOL-GEL ;  C-4 HYDROCARBONS ;  MALEIC-ANHYDRIDE ;  EXCESS MOO3 ;  NIMO/TIO2-AL2O3 CATALYSTS
语种: 英语
WOS记录号: WOS:000260533200038
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141112
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

Files in This Item:

There are no files associated with this item.


作者单位: 1.Dalian Univ Technol, Dept Catalysis Chem & Engn, State Key Lab Fine Chem, Dalian 116012, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Wang, Yuguang,Xiong, Guang,Liu, Xin,et al. Structure and Reducibility of NiO-MoO3/gamma-Al2O3 Catalysts: Effects of Loading and Molar Ratio[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2008,112(44):17265-17271.
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Wang, Yuguang]'s Articles
 [Xiong, Guang]'s Articles
 [Liu, Xin]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Wang, Yuguang]‘s Articles
 [Xiong, Guang]‘s Articles
 [Liu, Xin]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Powered by CSpace