4.8 Article

Anhydrous Proton Conduction in Crystalline Porous Materials with a Wide Working Temperature Range

Journal

ACS APPLIED MATERIALS & INTERFACES
Volume 13, Issue 35, Pages 41363-41371

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/acsami.1c10351

Keywords

crystalline porous materials; proton conductivity; wide working temperature; fuel cells; pore engineering

Funding

  1. National Natural Science Foundation of China [21975044, 21971038, 21922810]
  2. Fujian Provincial Department of Science and Technology [2019H6012, 21019L3004]

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The paper summarizes recent research on anhydrous CPM proton conductors, focusing on tuning CPM structures and protonic species to achieve wide working temperature conduction as well as clarifying the conducting mechanism.
Crystalline porous materials (CPMs), exhibiting high surface areas, versatile structural topologies, and tunable functionality, have attracted much attention in the field of proton exchange membrane fuel cells (PEMFC) for their great potential in solid electrolytes. However, most hydrated CPM proton conductors suffer from the narrow working temperature and the high water/humidity dependence. Considering the practical application in different working environments, CPMs with high anhydrous conductivity from subzero to moderate temperature (>100 degrees C) are desirable, but it is still a huge challenge. Herein we summarized our recent research work in the anhydrous CPM proton conductors, including to rationally tune the structures of CPMs by using the strategies of pore engineering and protonic species control to achieve wide working temperature conduction, as well as to clarify the conducting mechanism. This spotlight will provide clues to flexibly design and fabricate wide-working-temperature CPM conductors with high protonic conductivity.

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