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Jingmei Xu,Xuan Chen,Mengchi Ju,Jiahui Ren,Pengyun Zhao,Lingxin Meng,Jinxuan Lei,Qingyuan Shi,Zhe Wang 한국공업화학회 2023 Journal of Industrial and Engineering Chemistry Vol.119 No.-
In this study, a sulfonated poly (ether ketone sulfone) with multiple sulfonic acid groups was preparedand named as MSP, where the multiple sulfonic acid groups in the polymer were located on its sidechains of uneven length. And a series of hybrid membranes were prepared by introducing organic–inorganicfillers (ZIF-67/GO) into this side chain type polymer matrix. Among them, ZIF-67 was chemicallygrafted onto the GO sheet through coordination between Co+ and the carboxyl group of GO, bound toGO and grown uniformly. The ZIF-67/GO and hybrid membranes were characterized by FT-IR, XRD,SEM, AFM and 1H NMR. The hybrid membranes exhibited increasingly high proton conductivity fromMSP (0.0876 S cm1) to MSP-1 % ZIF-67/GO (0.1426 S cm1) at 100 C and 100 % relative humidity. Moreover, the hybrid membranes have excellent chemical stability. The results indicated that ZIF-67/GO was important for constructing of proton transport channels, and the prepared hybrid membranesshowed great potential for application in PEM.