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Mengchi Ju,Lingxin Meng,Jingmei Xu,Xuan Chen,Junjian Yu,Zhe Wang 한국공업화학회 2023 Journal of Industrial and Engineering Chemistry Vol.123 No.-
The sulfonated poly(arylene ether ketone sulfone) containing –NH2 groups (Am-SPAEKS) and UiO-66-NH2 were respectively used as organic matrix and fillers. Am-S-U hybrid membranes were preparedby chemically anchoring UiO-66-NH2 onto the polymer main chain of Am-SPAEKS by Hinsberg reaction. The UiO-66-NH2 and Am-S-U hybrid membranes were characterized by 1H NMR, FT-IR, PXRD and SEM. The proton conductivities of Am-S-U hybrid membranes (0.072 0.088 S cm1 at 30 C and 0.125 0.168S cm1 at 80 C) were much higher than Am-SPAEKS (0.058 S cm1 at 30 C and 0.090 S cm1 at 80 C). The membranes showed good dimensional stability (swelling ratios < 9.49% at 100 C). Moreover, Am-SU-6% hybrid membrane showed relatively high peak power density (290.97 mW cm2). The results displaythat Am-S-U hybrid membranes have potential as proton exchange membranes.
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.