Yolk-Shell-Structured CuO−ZnO−In2O3 Trimetallic Oxide Mesocrystal Microspheres as an Efficient Catalyst for Trichlorosilane Production

Xin Li; Yongjun Ji; Jing Li; Yu Zhang; Hezhi Liu; Qiongguang Li; Lihua Jia; Xiangfeng Guo; Ziyi Zhong; Fabing Su

doi:10.1002/cctc.201902330

Yolk-Shell-Structured CuO−ZnO−In₂O₃ Trimetallic Oxide Mesocrystal Microspheres as an Efficient Catalyst for Trichlorosilane Production

Xin Li, Yongjun Ji^*, Jing Li, Yu Zhang, Hezhi Liu, Qiongguang Li, Lihua Jia, Xiangfeng Guo, Ziyi Zhong, Fabing Su

^*Corresponding author for this work

Chemical Engineering

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9 Scopus citations

Abstract

Trichlorosilane (TCS), the primary chemical feedstock for production of high-purity Si used in Si-based solar cells, is currently manufactured industrially via a non-catalytic hydrochlorination of metallurgical Si. This process generates a huge amount of undesirable silicon tetrachloride (STC) byproduct. Here we report the synthesis of yolk-shell-structured CuO−ZnO−In₂O₃ trimetallic oxide mesocrystal microspheres that can be employed as an efficient catalyst to produce TCS catalytically. The CuO−ZnO−In₂O₃ microspheres with multiple hetero-interfaces were prepared using a facile solvothermal reaction followed by calcination. We found that differing from a single CuO mesocrystal, the electronic density on Cu atoms in the CuO phase within CuO−ZnO and CuO−ZnO−In₂O₃ can be tuned by varying the composition. When used as a catalyst for Si hydrochlorination reaction to produce TCS, CuO−ZnO−In₂O₃ shows excellent catalytic performance with very high Si conversion and TCS selectivity. Under the same reaction conditions, the TCS yield increased 13 times relative to the catalyst-free process. This work demonstrates the possibility to decrease the amount of STC needed for the catalytic manufacture of TCS, and provides an approach to the facile synthesis of multi-component mesocrystal materials with a specific structure.

Original language	English
Pages (from-to)	1596-1602
Number of pages	7
Journal	ChemCatChem
Volume	12
Issue number	6
DOIs	https://doi.org/10.1002/cctc.201902330
State	Published - 19 Mar 2020

Keywords

catalytic production of trichlorosilane
interfacial charge transfer
superstructure
trimetallic oxide mesocrystals
yolk-shell structure

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10.1002/cctc.201902330

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title = "Yolk-Shell-Structured CuO−ZnO−In2O3 Trimetallic Oxide Mesocrystal Microspheres as an Efficient Catalyst for Trichlorosilane Production",

abstract = "Trichlorosilane (TCS), the primary chemical feedstock for production of high-purity Si used in Si-based solar cells, is currently manufactured industrially via a non-catalytic hydrochlorination of metallurgical Si. This process generates a huge amount of undesirable silicon tetrachloride (STC) byproduct. Here we report the synthesis of yolk-shell-structured CuO−ZnO−In2O3 trimetallic oxide mesocrystal microspheres that can be employed as an efficient catalyst to produce TCS catalytically. The CuO−ZnO−In2O3 microspheres with multiple hetero-interfaces were prepared using a facile solvothermal reaction followed by calcination. We found that differing from a single CuO mesocrystal, the electronic density on Cu atoms in the CuO phase within CuO−ZnO and CuO−ZnO−In2O3 can be tuned by varying the composition. When used as a catalyst for Si hydrochlorination reaction to produce TCS, CuO−ZnO−In2O3 shows excellent catalytic performance with very high Si conversion and TCS selectivity. Under the same reaction conditions, the TCS yield increased 13 times relative to the catalyst-free process. This work demonstrates the possibility to decrease the amount of STC needed for the catalytic manufacture of TCS, and provides an approach to the facile synthesis of multi-component mesocrystal materials with a specific structure.",

keywords = "catalytic production of trichlorosilane, interfacial charge transfer, superstructure, trimetallic oxide mesocrystals, yolk-shell structure",

author = "Xin Li and Yongjun Ji and Jing Li and Yu Zhang and Hezhi Liu and Qiongguang Li and Lihua Jia and Xiangfeng Guo and Ziyi Zhong and Fabing Su",

note = "Publisher Copyright: {\textcopyright} 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim",

year = "2020",

month = mar,

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doi = "10.1002/cctc.201902330",

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T1 - Yolk-Shell-Structured CuO−ZnO−In2O3 Trimetallic Oxide Mesocrystal Microspheres as an Efficient Catalyst for Trichlorosilane Production

AU - Li, Xin

AU - Ji, Yongjun

AU - Li, Jing

AU - Zhang, Yu

AU - Liu, Hezhi

AU - Li, Qiongguang

AU - Jia, Lihua

AU - Guo, Xiangfeng

AU - Zhong, Ziyi

AU - Su, Fabing

PY - 2020/3/19

Y1 - 2020/3/19

N2 - Trichlorosilane (TCS), the primary chemical feedstock for production of high-purity Si used in Si-based solar cells, is currently manufactured industrially via a non-catalytic hydrochlorination of metallurgical Si. This process generates a huge amount of undesirable silicon tetrachloride (STC) byproduct. Here we report the synthesis of yolk-shell-structured CuO−ZnO−In2O3 trimetallic oxide mesocrystal microspheres that can be employed as an efficient catalyst to produce TCS catalytically. The CuO−ZnO−In2O3 microspheres with multiple hetero-interfaces were prepared using a facile solvothermal reaction followed by calcination. We found that differing from a single CuO mesocrystal, the electronic density on Cu atoms in the CuO phase within CuO−ZnO and CuO−ZnO−In2O3 can be tuned by varying the composition. When used as a catalyst for Si hydrochlorination reaction to produce TCS, CuO−ZnO−In2O3 shows excellent catalytic performance with very high Si conversion and TCS selectivity. Under the same reaction conditions, the TCS yield increased 13 times relative to the catalyst-free process. This work demonstrates the possibility to decrease the amount of STC needed for the catalytic manufacture of TCS, and provides an approach to the facile synthesis of multi-component mesocrystal materials with a specific structure.

AB - Trichlorosilane (TCS), the primary chemical feedstock for production of high-purity Si used in Si-based solar cells, is currently manufactured industrially via a non-catalytic hydrochlorination of metallurgical Si. This process generates a huge amount of undesirable silicon tetrachloride (STC) byproduct. Here we report the synthesis of yolk-shell-structured CuO−ZnO−In2O3 trimetallic oxide mesocrystal microspheres that can be employed as an efficient catalyst to produce TCS catalytically. The CuO−ZnO−In2O3 microspheres with multiple hetero-interfaces were prepared using a facile solvothermal reaction followed by calcination. We found that differing from a single CuO mesocrystal, the electronic density on Cu atoms in the CuO phase within CuO−ZnO and CuO−ZnO−In2O3 can be tuned by varying the composition. When used as a catalyst for Si hydrochlorination reaction to produce TCS, CuO−ZnO−In2O3 shows excellent catalytic performance with very high Si conversion and TCS selectivity. Under the same reaction conditions, the TCS yield increased 13 times relative to the catalyst-free process. This work demonstrates the possibility to decrease the amount of STC needed for the catalytic manufacture of TCS, and provides an approach to the facile synthesis of multi-component mesocrystal materials with a specific structure.

KW - catalytic production of trichlorosilane

KW - interfacial charge transfer

KW - superstructure

KW - trimetallic oxide mesocrystals

KW - yolk-shell structure

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U2 - 10.1002/cctc.201902330

DO - 10.1002/cctc.201902330

M3 - 文章

AN - SCOPUS:85082309010

SN - 1867-3880

VL - 12

SP - 1596

EP - 1602

JO - ChemCatChem

JF - ChemCatChem

IS - 6

ER -

Yolk-Shell-Structured CuO−ZnO−In₂O₃ Trimetallic Oxide Mesocrystal Microspheres as an Efficient Catalyst for Trichlorosilane Production

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Keywords

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