Ge, Qianqian; Liang, Xian; Ding, Liang; Hou, Jianqiu; Miao, Jibin; Wu, Bin; Yang, Zhengjin; Xu, Tongwen published the artcile< Guiding the self-assembly of hyperbranched anion exchange membranes utilized in alkaline fuel cells>, Safety of 1-(Chloromethyl)-4-vinylbenzene, the main research area is hyperbranched polyvinylbenzyl chloride diamine crosslinked anion exchange membrane; self assembly hyperbranched anion exchange membrane alk fuel cells.
Anion exchange membrane fuel cells (AEMFCs) can efficiently convert chem. energy into electricity at high pH. However, as the critical component, the existing anion exchange membranes (AEMs), cannot have both high stability and high conductivity, which is intrinsic to the conventional linear AEMs. To address this, here we report hyperbranched AEMs cross-linked by diamines and proposed a strategy to guide the self-assembly of hyperbranched AEMs, thereby regulating the membrane microphase morphol. We found that the chain length of the diamine crosslinking agents plays a significant role in guiding the formation of microphase separated morphol. inside hyperbranched AEMs and influences eventually the membrane conductivity and stability. The hyperbranched membrane HBM-6C exhibits the most distinct microphase separated morphol., leading to high conductivity and improved alk. stability. For instance, the hydroxide conductivity of HBM-6C membrane is 27.18 mS cm-1 at 30 °C, 2.7 times of the linear counterpart membrane [PTMVPMA][OH] (10 mS cm-1). A H2/O2 AEMFC assembled with HBM-6C membrane herein demonstrates a maximum power d. of 97 mW cm-2 at a c.d. of 190 mA cm-2. Our results would pave the way towards AEMs with novel chain architecture and stimulate further improvement in AEMFC performance.
Journal of Membrane Science published new progress about Alkaline fuel cells. 1592-20-7 belongs to class chlorides-buliding-blocks, and the molecular formula is C9H9Cl, Safety of 1-(Chloromethyl)-4-vinylbenzene.
Referemce:
Chloride – Wikipedia,
Chlorides – an overview | ScienceDirect Topics