Please use this identifier to cite or link to this item:
Full metadata record
DC FieldValueLanguage
dc.contributor.authorZhang, Caizhien_US
dc.contributor.authorLiu, Haoen_US
dc.contributor.authorZeng, Taoen_US
dc.contributor.authorChen, Jiaweien_US
dc.contributor.authorLin, Pengfengen_US
dc.contributor.authorDeng, Boen_US
dc.contributor.authorLiu, Fujianen_US
dc.contributor.authorZheng, Yifengen_US
dc.identifier.citationZhang, C., Liu, H., Zeng, T., Chen, J., Lin, P., Deng, B., Liu, F. & Zheng, Y. (2021). Systematic study of short circuit activation on the performance of PEM fuel cell. International Journal of Hydrogen Energy, 46(45), 23489-23497.
dc.description.abstractDuring the operation of proton exchange membrane fuel cell (PEMFC), it always suffers from reversible performance loss caused by the oxidation of platinum catalyst on its electrode, which reduces the electrochemical active surface area. Short circuit method has been found to improve the performance of fuel cells by stripping of oxides and other adsorbed species from platinum, which needs systematical understanding the effective parameters of short circuit method on fuel cell performance. In this paper, the effects of different short circuit activation parameters (duration, interval, cycles, cut-off voltage, operating current) are carefully studied and analyzed during short circuit operations. In addition, the mechanism revealing how relevant parameters influence short circuit activations is deeply analyzed. The results show that five groups of activation parameters have obvious influence on the activation of fuel cell, indicating that the short-circuit activation effect can be optimized. Among these parameters, the short-circuit duration parameter have the greatest impact on activation, because the platinum hydroxides and oxides is gradually removed during short-circuit duration and results in a larger effective surface area of the platinum catalyst for the electrochemical reaction. However, the smallest impact is short-circuit interval. Another finding is that the five activation parameters are not independent, so the optimal activation parameter value needs to be analyzed in combination with the operating conditions. Finally, according to the activation principle, selection of appropriate short circuit activation parameters for application are proposed to further improve performance and fuel utilization by considering the safety of the stack.en_US
dc.relation.ispartofInternational Journal of Hydrogen Energyen_US
dc.rights© 2020 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.en_US
dc.subjectEngineering::Electrical and electronic engineeringen_US
dc.titleSystematic study of short circuit activation on the performance of PEM fuel cellen_US
dc.typeJournal Articleen
dc.contributor.researchEnergy Research Institute @ NTU (ERI@N)en_US
dc.subject.keywordsPlatinum Oxidationen_US
dc.subject.keywordsShort Circuiten_US
dc.description.acknowledgementThis work was supported in part by the National Key Research and Development Program under Grant 2018YFB0105402 and Grant 2018YFB0105703, the Technological Innovation and Application Demonstration in Chongqing (Major Themes of Industry: cstc2018jszx-cyztzxX0005, cstc2019jscx-zdztzxX0033 and cstc2019jscx-fxydX0020) and by the Fundamental Research Funds for the Central Universities under Grant 2019CDXYQC0003, 244005202014, 2019, and Grant 2018CDXYTW0031.en_US
item.fulltextNo Fulltext-
Appears in Collections:ERI@N Journal Articles

Citations 20

Updated on Sep 22, 2023

Web of ScienceTM
Citations 20

Updated on Sep 28, 2023

Page view(s)

Updated on Oct 1, 2023

Google ScholarTM




Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.