In this section, you can access to the latest technical information related to the FUTURE project topic.

Preparation and performance of bisimidazole cationic crosslinked addition-type polynorbornene-based anion exchange membrane

The late transition metal catalyst system (?3-allyl)Pd(PPh3)Cl/Li[B(C6F5)4]?2.5Et2O (Li[FABA]) was used to catalyze 5-norbornene-2-methylenehexyl ether (NB-MHE) and 5-norbornene-2-methylene-(6-bromohexyl) ether (NB?O?Br) controllable addition copolymerization to obtain post-functionalized vinyl addition-type block copolymer aP(NB-O-Br-b-NB-MHE). 1,6-Bis(2-methylimidazole)hexane (Bis-MeIm) was used as a crosslinking agent to prepare a series of anion exchange membranes (AEMs) CL-aP(NB-O-Br-b-NB-MHE). The initial thermal decomposition temperature of the obtained addition-type polynorbornene-based AEM was about 250??C. The AEM had moderate water uptake (WU) and swelling ratio (SR), and obvious micro-phase separation structure that could be observed from the AFM phase diagram. It could maintain high OH? conductivity (85.07?mS?cm?1, 80??C) and alkali resistance stability (soaking alkali for more than 500?h at 25??C). In the single cell test of the H2/O2 fuel cell assembled by CL5-aP(NB-O-Br-b-NB-MHE), the peak power density was 177?mW?cm?2.

» Author: Xiaohui He, Jianhua Zou, Yufei Wen, Bin Wu, Xiujing Zang, Jiahao Deng, Zengwei Qin, Guoxiao Yang, Jiang Xu, Defu Chen

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