Enhanced sulfur dioxide electrooxidation performance on a modified XC-72 carbon catalyst

	Enhanced sulfur dioxide electrooxidation performance on a modified XC-72 carbon catalyst
	Zheng, Limin 1; Ai, Jun 1; Jiang, Shangfeng 1,2; Hou, Ming 1; Zhao, Qing 1,2; Shao, Zhigang 1
刊名	JOURNAL OF SOLID STATE ELECTROCHEMISTRY
	2017-11-01
卷号	21 期号:11 页码:3113-3120
关键词	Modified XC-72 Pyridinic N SO2 electrooxidation Pyrolysis Optimized pore structure
英文摘要	Vulcan XC-72 is a carbon catalyst that is widely used in electrochemistry. The electrooxidation of SO2 plays a significant role in the domain of environmental protection. In this work, successive thermal and pyrolytic processes were applied to Vulcan XC-72 in order to obtain a modified catalyst that promotes SO2 electrooxidation to a much greater degree than Vulcan XC-72 does. The preparation of this modified XC-72 involved three steps: doping, pore creation, and carbonization. These modification processes were shown to greatly increase the catalytic activity of the modified XC-72 during SO2 electrooxidation. The catalytic performance of the modified XC-72 towards SO2 electrooxidation was characterized via linear sweep voltammograms and cyclic voltammograms; the results showed that the onset potential and the E (imax/2) obtained with the modified XC-72 were 60 mV and 128 mV lower, respectively, than attained with Vulcan XC-72. The structural and physical properties of the modified XC-72 were characterized using TEM, XPS, and BET. The increased surface area and optimized pore structure of the modified XC-72, as well as the presence of pyridinic N constituents in this material, are believed to contribute to its enhanced capacity to catalyze the electrooxidation of SO2.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Electrochemistry
研究领域[WOS]	Electrochemistry
关键词[WOS]	MEMBRANE FUEL-CELLS ; ACIDIC MEDIA ; ELECTROCHEMICAL-BEHAVIOR ; SO2 ADSORPTION ; AQUEOUS SO2 ; HYDROGEN-PRODUCTION ; ACTIVATED CARBONS ; GOLD ELECTRODES ; OXIDATION ; ELECTROCATALYSTS
收录类别	SCI
语种	英语
WOS记录号	WOS:000413763100005
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/149706]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, Fuel Cell Syst & Engn Lab, 457 Zhongshan Rd, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zheng, Limin,Ai, Jun,Jiang, Shangfeng,et al. Enhanced sulfur dioxide electrooxidation performance on a modified XC-72 carbon catalyst[J]. JOURNAL OF SOLID STATE ELECTROCHEMISTRY,2017,21(11):3113-3120.
APA	Zheng, Limin,Ai, Jun,Jiang, Shangfeng,Hou, Ming,Zhao, Qing,&Shao, Zhigang.(2017).Enhanced sulfur dioxide electrooxidation performance on a modified XC-72 carbon catalyst.JOURNAL OF SOLID STATE ELECTROCHEMISTRY,21(11),3113-3120.
MLA	Zheng, Limin,et al."Enhanced sulfur dioxide electrooxidation performance on a modified XC-72 carbon catalyst".JOURNAL OF SOLID STATE ELECTROCHEMISTRY 21.11(2017):3113-3120.