中国科学院化学研究所机构知识库
Advanced  
ICCAS OpenIR  > 分子动态与稳态结构实验室  > 期刊论文
题名: Consecutive H-2 Oxidation Mediated by Au2VO4+ Clusters
作者: Zhou, Xiao-Hong1; Li, Zi-Yu2; Ma, Tong-Mei1; He, Sheng-Gui2
刊名: JOURNAL OF PHYSICAL CHEMISTRY C
发表日期: 2016-05-19
卷: 120, 期:19, 页:10452-10459
收录类别: SCI
英文摘要: Laser-ablation generated gold-vanadium oxide cluster cations Au2VOx+ (x = 3, 4) were mass-selected by a quadrupole mass filter and interacted with H-2 in an ion trap reactor. The reactions were characterized by mass spectrometry and density functional theory calculations. The Au2VO4+ cluster can oxidize two H-2 molecules consecutively to produce Au2VO3+ and then Au2VO2+, the latter of which can react with one O-2 molecule to regenerate Au2VO4+. Therefore, a catalytic cycle for H-2 oxidation by O-2 mediated with the Au2VO2+ clusters can be proposed. The theoretical studies predict that the gold atoms in both Au2VO4+ and Au2VO3+ are the active adsorption sites and facilitate the heterolytic cleavage of H-2 in collaboration with the separate O-2 ions of the vanadium oxide support. The consecutively oxidative reactivity of Au2VO4+ is attributed to the activation and dissociation of the superoxide or peroxide species (O-2(center dot-) or O-2(2-)) into two reactive atomic oxygen species (O2-) with the promotional effect of gold atoms acting as electron donors. This study provides molecular-level insights into the elementary mechanisms of the H-2 catalytic oxidation on the surface.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/36132
Appears in Collections:分子动态与稳态结构实验室_期刊论文

Files in This Item:

There are no files associated with this item.


作者单位: 1.S China Univ Technol, Sch Chem & Chem Engn, 381 Wushan Rd, Guangzhou 510641, Guangdong, Peoples R China
2.Chinese Acad Sci, Inst Chem, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Zhou, Xiao-Hong]'s Articles
[Li, Zi-Yu]'s Articles
[Ma, Tong-Mei]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Zhou, Xiao-Hong]‘s Articles
[Li, Zi-Yu]‘s Articles
[Ma, Tong-Mei]‘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!
Copyright © 2007-2017  中国科学院化学研究所 - Feedback
Powered by CSpace