Institute of Crystalline Materials;
Shanxi University;
Taiyuan 030006;
China;
Institute of Urban Environment;
Chinese Academy of Sciences;
Xiamen 361021;
China;
College of Chemistry;
Taiyuan University of Technology;
Taiyuan 030024;
China;
two-in-one strategy; hydrogen-bonded organic framework; proton conduction; solid state electrolyte;