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Approaching high temperature performance for proton exchange membrane fuel cells with 3D ordered silica/Cs2.5H0.5PW electrolytes

Development of new types of proton conducting materials with efficient transport of protons is one of the most important remaining challenges for elevated-temperature proton exchange membrane fuel cells. Herein, we report the design and synthesis of a new type of proton conducting material based on...

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Hauptverfasser: Liang, Cong (VerfasserIn) , Li, Junsheng (VerfasserIn) , Tang, Haolin (VerfasserIn) , Zhang, Huijie (VerfasserIn) , Zhang, Haining (VerfasserIn) , Mu, Pan (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 2014
In: Journal of materials chemistry. A, Materials for energy and sustainability
Year: 2013, Jahrgang: 2, Heft: 3, Pages: 753-760
ISSN:2050-7496
DOI:10.1039/C3TA14064D
Online-Zugang:Resolving-System, lizenzpflichtig, Volltext: https://doi.org/10.1039/C3TA14064D
Verlag, lizenzpflichtig, Volltext: https://pubs.rsc.org/en/content/articlelanding/2014/ta/c3ta14064d
Volltext
Verfasserangaben:Cong Liang, Junsheng Li, Haolin Tang, Huijie Zhang, Haining Zhang and Pan Mu
Beschreibung
Zusammenfassung:Development of new types of proton conducting materials with efficient transport of protons is one of the most important remaining challenges for elevated-temperature proton exchange membrane fuel cells. Herein, we report the design and synthesis of a new type of proton conducting material based on three dimensional ordered macroporous silica (3DOM silica) incorporated with inorganic Cs2.5H0.5PW electrolytes. The highly ordered structure of 3DOM silica provides well inter-connected pathways for efficient proton transport, especially at high operating temperatures. At a doping amount of 90 wt% of Cs2.5H0.5PW, the proton conductivity of the formed composite electrolyte reaches 0.248 S cm−1 at 170 °C and the activation energy is about 5.775 kJ mol−1. The novel electrolytes also showed good stability as well as excellent single cell performance at 170 °C. The results described here demonstrate that the 3DOM silica/Cs2.5H0.5PW electrode has great potential for high temperature proton exchange membrane fuel cell applications.
Beschreibung: First published 23 Oct 2013
Gesehen am 20.10.2020
Beschreibung:Online Resource
ISSN:2050-7496
DOI:10.1039/C3TA14064D

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