In situ generating Cu2O/Cu heterointerfaces on the Cu2O cube surface to enhance interface charge transfer for the Rochow reaction
文献类型：期刊论文
| 作者 | Tang, Fei1,4; Li, Jing4; Zhu, Yongxia4; Ji, Yongjun5; Li, Huifang4; Liu, Hezhi4; Wang, Xueguang1; Zhong, Ziyi2,6; Su, Fabing3,4 |
| 刊名 | CATALYSIS SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2021-03-21 |
| 卷号 | 11期号:6页码:2202-2213 |
| ISSN号 | 2044-4753 |
| DOI | 10.1039/d0cy02015j |
| 英文摘要 | In 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. |
| 资助项目 | National Natural Science Foundation of China[21908224] ; Research Foundation for Advanced Talents of Beijing Technology and Business University[19008020159] ; Guangdong Key Discipline Fund |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000634519900016 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 资助机构 | National Natural Science Foundation of China ; Research Foundation for Advanced Talents of Beijing Technology and Business University ; Guangdong Key Discipline Fund |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/48269]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Li, Jing; Wang, Xueguang; Su, Fabing |
| 作者单位 | 1.Shanghai Univ, Sch Mat Sci & Engn, State Key Lab Adv Special Steel, Shanghai 200444, Peoples R China 2.Guangdong Technion Israel Inst Technol GTIIT, Coll Engn, 241 Daxue Rd, Shantou 515063, Peoples R China 3.Shenyang Univ Chem Technol, Inst Ind Chem & Energy Technol, Shenyang 110142, Peoples R China 4.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 5.Beijing Technol & Business Univ, Sch Light Ind, Beijing 100048, Peoples R China 6.Technion Israel Inst Technol IIT, IL-32000 Haifa, Israel |
| 推荐引用方式 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. |
入库方式： OAI收割
来源：过程工程研究所
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