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Behaviors of a proton exchange membrane electrolyzer under water starvation
Sun, Shucheng1,2; Xiao, Yu1; Liang, Dong3; Shao, Zhigang1; Yu, Hongmei1; Hou, Ming1; Yi, Baolian1
刊名RSC ADVANCES
2015
DOI10.1039/c4ra14104k
5期:19页:14506-14513
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Multidisciplinary
研究领域[WOS]Chemistry
关键词[WOS]OXYGEN EVOLUTION REACTION ; PEM FUEL-CELL ; SODIUM-ION ; POLYMER ; DEGRADATION ; TRANSPORT ; ELECTROCATALYSTS ; REVERSAL
英文摘要Water starvation could be one of the reasons for proton exchange membrane (PEM) water electrolyzer degradation. In this paper, the water starvation phenomena of a unit cell in a PEM electrolyzer stack are investigated. The voltage, current density and temperature distribution are investigated in situ with a segmented electrolyzer. The results show that the voltage of the middle and outlet regions is higher than the inlet voltage, which illustrates that water starvation could occur simultaneously in different regions of the electrolyzer. The water stoichiometries have an important effect on the voltage distribution, current density distribution and temperature distribution at 0.5 A cm(-2) and 60 degrees C. The electrochemical impedance spectra of different segments show that the cell resistance and charge transfer resistance gradually increase along the water flow direction when the water stoichiometry is 3. According to the flow regime map, the critical water stoichiometry for electrolysis is further discussed.
语种英语
WOS记录号WOS:000349434600054
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被引频次:15[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/145930
专题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, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
3.Sunrise Power Co Ltd, Dalian 116025, Peoples R China
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GB/T 7714
Sun, Shucheng,Xiao, Yu,Liang, Dong,et al. Behaviors of a proton exchange membrane electrolyzer under water starvation[J]. RSC ADVANCES,2015,5(19):14506-14513.
APA Sun, Shucheng.,Xiao, Yu.,Liang, Dong.,Shao, Zhigang.,Yu, Hongmei.,...&Yi, Baolian.(2015).Behaviors of a proton exchange membrane electrolyzer under water starvation.RSC ADVANCES,5(19),14506-14513.
MLA Sun, Shucheng,et al."Behaviors of a proton exchange membrane electrolyzer under water starvation".RSC ADVANCES 5.19(2015):14506-14513.
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