Recovery of Submicron-Sized Silicon-Rich Powder from Silicon Sawing Waste for Electrocatalyst of Methanol Electrooxidation

This study proposed a feasible process for recovering Si-rich powder at room temperature for electrocatalyst applications. The proposed process was successively performed through ultrasonic treatment for particle dispersion, magnetic separation for metal removal, and centrifugation for size classifi...

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Veröffentlicht in:	International journal of electrochemical science 2018-07, Vol.13 (7), p.6880-6896
Hauptverfasser:	Tsai, Tzu-Hsuan, Wu, Yung-Fu
Format:	Artikel
Sprache:	eng
Schlagworte:	Centrifugation Electrocatalyst Iron Magnetic Separation Recovery Sawing Waste Silicon
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container_end_page	6896
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container_title	International journal of electrochemical science
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creator	Tsai, Tzu-Hsuan Wu, Yung-Fu
description	This study proposed a feasible process for recovering Si-rich powder at room temperature for electrocatalyst applications. The proposed process was successively performed through ultrasonic treatment for particle dispersion, magnetic separation for metal removal, and centrifugation for size classification. The experimental results indicated that the recovered Si-rich powder contained 85 wt.% Si and 346 ppm Fe. Subsequently, the recovered powder was directly mixed with carbon to prepare an electrocatalyst for methanol electrooxidation. Our study indicated that the electrocatalytic applications of fine Si powder may be a suitable incentive to recycle Si from sawing waste.
doi_str_mv	10.20964/2018.07.02
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The proposed process was successively performed through ultrasonic treatment for particle dispersion, magnetic separation for metal removal, and centrifugation for size classification. The experimental results indicated that the recovered Si-rich powder contained 85 wt.% Si and 346 ppm Fe. Subsequently, the recovered powder was directly mixed with carbon to prepare an electrocatalyst for methanol electrooxidation. Our study indicated that the electrocatalytic applications of fine Si powder may be a suitable incentive to recycle Si from sawing waste.</description><identifier>ISSN: 1452-3981</identifier><identifier>EISSN: 1452-3981</identifier><identifier>DOI: 10.20964/2018.07.02</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>Centrifugation ; Electrocatalyst ; Iron ; Magnetic Separation ; Recovery ; Sawing Waste ; Silicon</subject><ispartof>International journal of electrochemical science, 2018-07, Vol.13 (7), p.6880-6896</ispartof><rights>2018 The Authors. 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subjects	Centrifugation Electrocatalyst Iron Magnetic Separation Recovery Sawing Waste Silicon
title	Recovery of Submicron-Sized Silicon-Rich Powder from Silicon Sawing Waste for Electrocatalyst of Methanol Electrooxidation
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