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Insight of anode reaction for CWS (coal water slurry) electrolysis for hydrogen production
Ge, Lan1; Gong, Xuzhong1; Wang, Zhi1; Zhao, Lixin2; Wang, Yuhua1; Wang, Mingyong1; Gong, XZ
2016-02-01
发表期刊ENERGY
ISSN0360-5442
卷号96期号:FEB页码:372-382
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.
关键词Coal Water Slurry Electrolysis Electrode Reaction Activation Energy Direct Oxidation Indirect Oxidation
文章类型Article
学科领域Thermodynamics ; Energy & Fuels ; Thermodynamics ; Energy & Fuels
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1016/j.energy.2015.12.077
URL查看原文
收录类别SCI
语种英语
关键词[WOS]ELECTROCHEMICAL GASIFICATION ; INTERMEDIATE TEMPERATURES ; OXIDATION ; KINETICS ; SYSTEM ; CARBON ; TECHNOLOGIES ; FEASIBILITY ; CATALYSTS ; REMOVAL
WOS研究方向Thermodynamics ; Energy & Fuels
WOS类目Thermodynamics ; Energy & Fuels
项目资助者Natural Science Foundation of China(51004090 ; State Key Laboratory of Advanced Metallurgy(KF13-03) ; Youth Innovation Promotion Association, CAS(2015036) ; 51474198)
WOS记录号WOS:000370886700034
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文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/20675
专题研究所(批量导入)
通讯作者Gong, XZ
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
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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.,...&Gong, XZ.(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.
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