CAS OpenIR
In situ generating Cu2O/Cu heterointerfaces on the Cu2O cube surface to enhance interface charge transfer for the Rochow reaction
Tang, Fei1,2; Li, Jing2; Zhu, Yongxia2; Ji, Yongjun3; Li, Huifang2; Liu, Hezhi2; Wang, Xueguang1; Zhong, Ziyi4,5; Su, Fabing2,6
2021-03-21
Source PublicationCATALYSIS SCIENCE & TECHNOLOGY
ISSN2044-4753
Volume11Issue:6Pages:2202-2213
AbstractIn heterogeneous catalysis, successful design and construction of the desired oxide-metal interface are critical to catalytic function due to the significant interfacial effects. However, there are still challenges and obscurities in constructing and understanding the structure of various interfacial sites and their oxide-metal interactions. In the present work, a series of cubic Cu/Cu2O hetero-nanoparticles were synthesized by in situ surface restructuring cubic Cu2O nanoparticles via a simple reduction treatment. These nanoparticles were further used as the model catalyst for the Rochow reaction, an important industrial process for synthesizing organosilicon polymers. It is found that cubic Cu/Cu2O with appropriate heterointerfaces exhibited improved dimethyldichlorosilane (M2) selectivity, Si conversion, and stability because of a strong interaction between the Cu/Cu2O interface. The latter originates from the formation of Schottky junctions that enhance the charge transfer efficiency and the subsequent reduction of Cu+ into Cu* (the active Cu atoms). Moreover, the easier cleavage of the Si-Si bond along the {110} crystal plane effectively generates Si* (the free Si atoms), which leads to inclined grooves on the surface of Si particles. The established transport and diffusion channels of Cu* and Si* greatly promoted the formation of the Cu3Si active phase and the subsequent methyl chlorosilane. This work provides a new fundamental understanding of Cu-based catalysts for the Rochow reaction and reveals a clear relationship between the Cu2O/metal heterointerface and the catalytic performance.
DOI10.1039/d0cy02015j
Language英语
Funding ProjectNational Natural Science Foundation of China[21908224] ; Research Foundation for Advanced Talents of Beijing Technology and Business University[19008020159] ; Guangdong Key Discipline Fund
WOS Research AreaChemistry
WOS SubjectChemistry, Physical
Funding OrganizationNational Natural Science Foundation of China ; Research Foundation for Advanced Talents of Beijing Technology and Business University ; Guangdong Key Discipline Fund
WOS IDWOS:000634519900016
PublisherROYAL SOC CHEMISTRY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/48270
Collection中国科学院过程工程研究所
Corresponding AuthorLi, Jing; Wang, Xueguang; Su, Fabing
Affiliation1.Shanghai Univ, Sch Mat Sci & Engn, State Key Lab Adv Special Steel, Shanghai 200444, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
3.Beijing Technol & Business Univ, Sch Light Ind, Beijing 100048, Peoples R China
4.Guangdong Technion Israel Inst Technol GTIIT, Coll Engn, 241 Daxue Rd, Shantou 515063, Peoples R China
5.Technion Israel Inst Technol IIT, IL-32000 Haifa, Israel
6.Shenyang Univ Chem Technol, Inst Ind Chem & Energy Technol, Shenyang 110142, Peoples R China
Recommended Citation
GB/T 7714
Tang, Fei,Li, Jing,Zhu, Yongxia,et al. In situ generating Cu2O/Cu heterointerfaces on the Cu2O cube surface to enhance interface charge transfer for the Rochow reaction[J]. CATALYSIS SCIENCE & TECHNOLOGY,2021,11(6):2202-2213.
APA Tang, Fei.,Li, Jing.,Zhu, Yongxia.,Ji, Yongjun.,Li, Huifang.,...&Su, Fabing.(2021).In situ generating Cu2O/Cu heterointerfaces on the Cu2O cube surface to enhance interface charge transfer for the Rochow reaction.CATALYSIS SCIENCE & TECHNOLOGY,11(6),2202-2213.
MLA Tang, Fei,et al."In situ generating Cu2O/Cu heterointerfaces on the Cu2O cube surface to enhance interface charge transfer for the Rochow reaction".CATALYSIS SCIENCE & TECHNOLOGY 11.6(2021):2202-2213.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Tang, Fei]'s Articles
[Li, Jing]'s Articles
[Zhu, Yongxia]'s Articles
Baidu academic
Similar articles in Baidu academic
[Tang, Fei]'s Articles
[Li, Jing]'s Articles
[Zhu, Yongxia]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Tang, Fei]'s Articles
[Li, Jing]'s Articles
[Zhu, Yongxia]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

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