Characterization of the thermo-reduction process of chalcopyrite at 65 degrees C by cyclic voltammetry and XANES spectroscopy

	Characterization of the thermo-reduction process of chalcopyrite at 65 degrees C by cyclic voltammetry and XANES spectroscopy
	Liang, CL; Xia, JL; Yang, Y; Nie, ZY; Zhao, XJ; Zheng, L; Ma, CY; Zhao, YD; Zheng L(郑雷); Ma CY(马陈燕)
刊名	HYDROMETALLURGY
	2011
卷号	107 期号:1-2 页码:#REF!
关键词	Chalcopyrite Bornite Chalcocite Reduction XANES Cyclic voltammetry
通讯作者	Xia, JL (reprint author), Cent S Univ, Sch Minerals Proc & Bioengn, Changsha 410083, Peoples R China.
英文摘要	The thermo-reduction of a massive chalcopyrite electrode was investigated at 65 degrees C and pH 1.5, in terms of cyclic voltammetry. The influences of scan limits on the electrochemical behavior of chalcopyrite were also studied, as well as the reduction intermediates on the electrode surface characterized by sulfur K-, Fe L3- and Cu L-3-edge X-ray absorption near structure (XANES) spectroscopy. The transformation conditions for the reduction of chalcopyrite to intermediate products were ascertained. The reduction process that transformed chalcopyrite to bornite took place in the potential range of 0.1 to -0.1 V. and is the initial and rate-limiting step of the successive chalcopyrite reduction. The reduction of bornite and chalcopyrite to chalcocite took place in the potential range of -0.1 to -0.56 V. while the formation of elemental copper was confirmed, when the potential was more negative than -0.5 V. (C) 2011 Elsevier B.V. All rights reserved.
学科主题	Metallurgy & Metallurgical Engineering
类目[WOS]	Metallurgy & Metallurgical Engineering
收录类别	SCI
WOS记录号	WOS:000289400800002
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/225498]
专题	高能物理研究所_多学科研究中心
推荐引用方式 GB/T 7714	Liang, CL,Xia, JL,Yang, Y,et al. Characterization of the thermo-reduction process of chalcopyrite at 65 degrees C by cyclic voltammetry and XANES spectroscopy[J]. HYDROMETALLURGY,2011,107(1-2):#REF!.
APA	Liang, CL.,Xia, JL.,Yang, Y.,Nie, ZY.,Zhao, XJ.,...&赵屹东.(2011).Characterization of the thermo-reduction process of chalcopyrite at 65 degrees C by cyclic voltammetry and XANES spectroscopy.HYDROMETALLURGY,107(1-2),#REF!.
MLA	Liang, CL,et al."Characterization of the thermo-reduction process of chalcopyrite at 65 degrees C by cyclic voltammetry and XANES spectroscopy".HYDROMETALLURGY 107.1-2(2011):#REF!.