CAS OpenIR  > 多相复杂系统国家重点实验室
Impact of the Cu2O microcrystal planes on active phase formation in the Rochow reaction and an experimental and theoretical understanding of the reaction mechanism
Li, Jing1,2; Yin, Li-Li3; Ji, Yongjun1; Liu, Hezhi1; Zhang, Yu1,2; Gong, Xue-Qing3; Zhong, Ziyi4; Su, Fabing1,5
2018-05-01
发表期刊JOURNAL OF CATALYSIS
ISSN0021-9517
卷号361页码:73-83
摘要In heterogeneous catalysis, on one hand, people always want to know about reaction details, such as what the most active phase is, how it is formed, and what is the reaction mechanism. On the other hand, it is still very challenging to probe these reaction details, particularly at high reaction temperatures and pressures. Here, we report the microcrystal plane-controlled catalytic performance on well-defined Cu2O cube, octahedron, and rhombic-dodecahedron catalysts in the Rochow reaction. It was found that the Cu2O cube exposing {100} crystal planes gave the highest dimethyldichlorosilane selectivity and yield, while the Cu2O rhombic-dodecahedron exposing {110} crystal planes showed the lowest selectivity and yield. Our experimental observation, as well as density functional theory calculations, demonstrated that the enhanced selectivity and yield stemmed from the stronger dissociative adsorption of methyl chloride on the Cu2O{100} plane, which greatly promoted the transformation of Cu2O into Cu3Si active phases under the reaction conditions. This work reveals a new strategy for controlling the surface structure of catalysts in order to enhance their catalytic performance. (C) 2018 Elsevier Inc. All rights reserved.
关键词Cu2o Microcrystals Crystal Plane Heterogeneous Catalysis Rochow Reaction Catalytic Performance
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1016/j.jcat.2018.02.010
收录类别SCI
语种英语
关键词[WOS]DEPENDENT CATALYTIC-ACTIVITY ; INITIO MOLECULAR-DYNAMICS ; PHOTOCATALYTIC ACTIVITY ; OXIDE NANOCRYSTALS ; COPPER ; METAL ; SHAPE ; METHYLCHLOROSILANES ; SELECTIVITY ; OXIDATION
WOS研究方向Chemistry ; Engineering
WOS类目Chemistry, Physical ; Engineering, Chemical
项目资助者National Natural Science Foundation of China(21506224)
WOS记录号WOS:000431164500009
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/24417
专题多相复杂系统国家重点实验室
作者单位1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.East China Univ Sci & Technol, Sch Chem & Mol Engn, Ctr Computat Chem, Key Lab Adv Mat,Res Inst Ind Catalysis, Shanghai 200237, Peoples R China
4.ASTAR, Inst Chem & Engn Sci, 1 Pesek Rd, Singapore 627833, Singapore
5.Shenyang Univ Chem Technol, Inst Ind Chem & Energy Technol, Shenyang 110142, Liaoning, Peoples R China
推荐引用方式
GB/T 7714
Li, Jing,Yin, Li-Li,Ji, Yongjun,et al. Impact of the Cu2O microcrystal planes on active phase formation in the Rochow reaction and an experimental and theoretical understanding of the reaction mechanism[J]. JOURNAL OF CATALYSIS,2018,361:73-83.
APA Li, Jing.,Yin, Li-Li.,Ji, Yongjun.,Liu, Hezhi.,Zhang, Yu.,...&Su, Fabing.(2018).Impact of the Cu2O microcrystal planes on active phase formation in the Rochow reaction and an experimental and theoretical understanding of the reaction mechanism.JOURNAL OF CATALYSIS,361,73-83.
MLA Li, Jing,et al."Impact of the Cu2O microcrystal planes on active phase formation in the Rochow reaction and an experimental and theoretical understanding of the reaction mechanism".JOURNAL OF CATALYSIS 361(2018):73-83.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Li, Jing]的文章
[Yin, Li-Li]的文章
[Ji, Yongjun]的文章
百度学术
百度学术中相似的文章
[Li, Jing]的文章
[Yin, Li-Li]的文章
[Ji, Yongjun]的文章
必应学术
必应学术中相似的文章
[Li, Jing]的文章
[Yin, Li-Li]的文章
[Ji, Yongjun]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。