Insight of anode reaction for CWS (coal water slurry) electrolysis for hydrogen production

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	Insight of anode reaction for CWS (coal water slurry) electrolysis for hydrogen production
	Ge, Lan 1; Gong, Xuzhong 1; Wang, Zhi 1; Zhao, Lixin 2; Wang, Yuhua 1; Wang, Mingyong 1
刊名	ENERGY
	2016-02-01
卷号	96 期号:FEB 页码:372-382
关键词	Coal water slurry Electrolysis Electrode reaction Activation energy Direct oxidation Indirect oxidation
ISSN号	0360-5442
通讯作者	Gong, XZ
英文摘要	Mechanism of CWS (coal water slurry) electrolysis was investigated by using anode reaction kinetics. The results indicated that the activation energies of electrode reaction reduce with the increase in activity of carbon materials. According to the electrode reaction kinetics, the direct oxidation of CWS electrolysis occurred easily under lower concentration of electrolyte and higher concentration of CWS. On the contrary, the indirect oxidation of CWS electrolysis took place. Because of the high oxygen evolution potential of water electrolysis in H2SO4 solution (1.23 V), the direct oxidation of CWS electrolysis mainly occurred under water decomposition potential (0.5-1.23 V). As NaOH solution was used as electrolyte, it was difficult to distinguish direct and indirect oxidation under the low potential (0.4 V). With increasing stirring rate, the electrode reaction activation energies of GWS (graphite water slurry) electrolysis increased slightly and were always lower than 40 kJ/mol. The results indicated that GWS electrolysis was controlled by diffusion and the increase in stirring rate could not reduce the polarization. (C) 2015 Elsevier Ltd. All rights reserved.
学科主题	Thermodynamics ; Energy & Fuels ; Thermodynamics ; Energy & Fuels
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Thermodynamics ; Energy & Fuels
研究领域[WOS]	Thermodynamics ; Energy & Fuels
关键词[WOS]	ELECTROCHEMICAL GASIFICATION ; INTERMEDIATE TEMPERATURES ; OXIDATION ; KINETICS ; SYSTEM ; CARBON ; TECHNOLOGIES ; FEASIBILITY ; CATALYSTS ; REMOVAL
收录类别	SCI
原文出处	PERGAMON-ELSEVIER SCIENCE LTD
语种	英语
WOS记录号	WOS:000370886700034
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/20675]
专题	过程工程研究所_研究所（批量导入）
作者单位	1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China 2.Tianjin Univ Technol, Dept Environm Sci & Safety Engn, Tianjin 300384, PR, Peoples R China
推荐引用方式 GB/T 7714	Ge, Lan,Gong, Xuzhong,Wang, Zhi,et al. Insight of anode reaction for CWS (coal water slurry) electrolysis for hydrogen production[J]. ENERGY,2016,96(FEB):372-382.
APA	Ge, Lan,Gong, Xuzhong,Wang, Zhi,Zhao, Lixin,Wang, Yuhua,&Wang, Mingyong.(2016).Insight of anode reaction for CWS (coal water slurry) electrolysis for hydrogen production.ENERGY,96(FEB),372-382.
MLA	Ge, Lan,et al."Insight of anode reaction for CWS (coal water slurry) electrolysis for hydrogen production".ENERGY 96.FEB(2016):372-382.