DICP OpenIR
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
Source PublicationRSC ADVANCES
2015
DOI10.1039/c4ra14104k
Volume5Issue:19Pages:14506-14513
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectChemistry, Multidisciplinary
WOS Research AreaChemistry
WOS KeywordOXYGEN EVOLUTION REACTION ; PEM FUEL-CELL ; SODIUM-ION ; POLYMER ; DEGRADATION ; TRANSPORT ; ELECTROCATALYSTS ; REVERSAL
AbstractWater 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.
Language英语
WOS IDWOS:000349434600054
Citation statistics
Cited Times:17[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/145930
Collection中国科学院大连化学物理研究所
Affiliation1.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
Recommended Citation
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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