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Keywords:

  • conducting materials;
  • electron density;
  • energy conversion;
  • fuel cells;
  • membranes
Thumbnail image of graphical abstract

Physical crosslinking: A typical trade-off between ionic conductivity and dimensional stability exists in hydroxides as well as in proton exchange membranes. In their Communication on page 843, Y. S. Yan et al. report a simple and effective strategy which utilizes direct tuning of van der Waals interactions among polymer chains to successfully reduce membrane-swelling and increase hydroxide-conductivity. This Communication, as well as the other papers in this issue of ChemSusChem, form part of a Special Issue in collaboration with the Dalian Institute of Physics, Chinese Academy of Sciences.