中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 过程工程研究所
  3. 中国科学院过程工程研究所
Use of the active-phase Cu3Si alloy as superior catalyst to direct synthesis of trichlorosilane via silicon hydrochlorination

文献类型：期刊论文

作者Su, Kai1,2; Luo, Jiachengjun3; Ji, Yongjun4; Jiang, Xingyu3; Li, Jing2; Zhang, Jianling2; Zhong, Ziyi5,6; Su, Fabing2,3
刊名JOURNAL OF SOLID STATE CHEMISTRY
出版日期2021-12-01
卷号304页码:10
关键词Cu3Si Superior catalyst Alloy Cu6.69Si Trichlorosilane Silicon hydrochlorination
ISSN号0022-4596
DOI10.1016/j.jssc.2021.122591
英文摘要Here we report the first synthesis of nearly pure-phase Cu3Si alloy that can be a highly efficient catalyst in the hydrochlorination of silicon reaction. This material was prepared by a high-temperature (1050 degrees C) calcination method in which copper and silicon powders were used as the reactants. The X-ray photoelectron spectroscopy (XPS) study revealed that the Cu and Si atoms in the Cu3Si alloy carried part of positive and negative charge, respectively. When employed as the catalyst in the silicon hydrochlorination to SiHCl3 (TCS) for the production of Si polycrystals for Solar cell, the sample Cu3Si exhibited excellent low-temperature catalytic performance: the Si conversion and TCS selectivity respectively achieved 41.1% and 96.1% at 250 degrees C. Notably, its TCS yield at 250 degrees C was 1.2 times higher than that of the industrial catalyst-free system at 350 degrees C. Detailed analysis of the reaction process showed that the positively charged Cu atoms and negatively charged Si atoms in Cu3Si alloy could cleave the H-Cl bond in the reactant HCl and make the combination of H and Cl atom with Si atoms easier. Meanwhile, the reaction between the remaining Cu atom and Si was accelerated, leading to the generation of more active Cu6.69Si and ultimately superior catalytic performance. This work deepens the fundamental understanding of the hydrochlorination of silicon reaction, and provides an avenue for the synthesis of Si-based alloy catalysts.
WOS关键词ROCHOW REACTION ; ANODE MATERIAL ; PERFORMANCE ; CUO
资助项目National Natural Science Foundation of China[21878301] ; National Natural Science Foundation of China[21978299] ; National Natural Science Foundation of China[21908224] ; Outstanding Youth Cultivation Program of Beijing Technology and Business University[19008021144] ; Research Foundation for Advanced Talents of Beijing Technology and Business University[19008020159]
WOS研究方向Chemistry
语种英语
WOS记录号WOS:000698156000041
出版者ACADEMIC PRESS INC ELSEVIER SCIENCE
资助机构National Natural Science Foundation of China ; Outstanding Youth Cultivation Program of Beijing Technology and Business University ; Research Foundation for Advanced Talents of Beijing Technology and Business University
源URL[http://ir.ipe.ac.cn/handle/122111/50215]  
专题中国科学院过程工程研究所
通讯作者Ji, Yongjun; Zhang, Jianling; Su, Fabing
作者单位1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
3.Shenyang Univ Chem Technol, Inst Ind Chem & Energy Technol, Shenyang 110142, Peoples R China
4.Beijing Technol & Business Univ, Sch Light Ind, Beijing 100048, Peoples R China
5.Guangdong Technion Israel Inst Technol GTIIT, Dept Chem Engn, Shantou 515063, Peoples R China
6.Technion Israel Inst Technol IIT, IL-32000 Haifa, Israel
推荐引用方式
GB/T 7714		 Su, Kai,Luo, Jiachengjun,Ji, Yongjun,et al. Use of the active-phase Cu3Si alloy as superior catalyst to direct synthesis of trichlorosilane via silicon hydrochlorination[J]. JOURNAL OF SOLID STATE CHEMISTRY,2021,304:10.
APA Su, Kai.,Luo, Jiachengjun.,Ji, Yongjun.,Jiang, Xingyu.,Li, Jing.,...&Su, Fabing.(2021).Use of the active-phase Cu3Si alloy as superior catalyst to direct synthesis of trichlorosilane via silicon hydrochlorination.JOURNAL OF SOLID STATE CHEMISTRY,304,10.
MLA Su, Kai,et al."Use of the active-phase Cu3Si alloy as superior catalyst to direct synthesis of trichlorosilane via silicon hydrochlorination".JOURNAL OF SOLID STATE CHEMISTRY 304(2021):10.

入库方式： OAI收割

来源：过程工程研究所

浏览0
下载0
收藏0
其他版本

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。