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Träfflista för sökning "WFRF:(Yuan Jia yin 1979 ) "

Search: WFRF:(Yuan Jia yin 1979 )

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  • Qiu, Chun-Yu, et al. (author)
  • Revealing the concentration of hydrogen peroxide in fuel cell catalyst layers by an in-operando approach
  • 2022
  • In: Chinese Journal of Catalysis. - 1872-2067. ; 43:7, s. 1918-1926
  • Journal article (peer-reviewed)abstract
    • To evaluate the H2O2-tolerance of non-Pt oxygen reduction reaction (ORR) catalysts as well as investigate the H2O2-induced decay mechanism, the selection of an appropriate H2O2 concentration is a prerequisite. However, the concentration criterion is still unclear because of the lack of in-operando methods to determine the actual concentration of H2O2 in fuel cell catalyst layers. In this work, an electrochemical probe method was successfully established to in-operando monitor the H2O2 in non-Pt catalyst layers for the first time. The local concentration of H2O2 was revealed to reach 17 mmol/L, which is one order of magnitude higher than that under aqueous electrodes test conditions. Powered by the new knowledge, a concentration criterion of at least 17 mmol/L is suggested. This work fills in the large gap between aqueous electrode tests and the real fuel cell working conditions, and highlights the importance of in-operando monitoring methods.
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  • Result 1-1 of 1
Type of publication
journal article (1)
Type of content
peer-reviewed (1)
Author/Editor
Qiu, Chun-Yu (1)
Wan, Li-yang (1)
Wang, Yu-Cheng (1)
Rauf, Muhammad (1)
Hong, Yu-Hao (1)
Yuan, Jia-yin, 1979- (1)
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Zhou, Zhi-You (1)
Sun, Shi-Gang (1)
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University
Stockholm University (1)
Language
English (1)
Research subject (UKÄ/SCB)
Natural sciences (1)
Year
2022 (1)

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