Comb-shaped phenolphthalein-based poly(ether sulfone)s as anion exchange membranes for alkaline fuel cells

Comb-shaped phenolphthalein-based poly(ether sulfone)s as anion exchange membranes for alkaline fuel cells
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梳形酚酞基聚醚砜作为碱性燃料电池阴离子交换膜

DOI:
10.1039/c5ra22774g
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发表时间:
2016-02
期刊:
影响因子:
3.9
通讯作者:
Liu Qing Lin
Liu Qing Lin
中科院分区:
化学3区
文献类型:
--
作者:
Lin Chen Xiao;Zhuo Yi Zhi;Lai Ao Nan;Zhang Qiu Gen;Zhu Ai Mei;Liu Qing Lin

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合成了一系列新型梳状酚酞基聚醚砜用于制备阴离子交换膜(AEMs)。以长烷基链的十六烷基二甲胺为季铵化剂,形成梳状结构的共聚物。由于具有疏水性的长烷基侧链的存在,合成的梳状AEMs具有自抗膨胀性能,吸水率和溶胀率较低。PES-B100-C16膜表现出优秀的碱性稳定由于大体积的存在β烷基链连接的阳离子集团抵御攻击哦−,并留住可用离子电导率在2 M KOH溶液60°C 360 h。单电池的开路电压达到0.67 V,最高功率密度是43 mW cm2 125毫安的电流密度厘米−2没有优化一个H2 / O2碱性燃料电池在50°C。
A series of novel comb-shaped phenolphthalein-based poly(ether sulfone)s was synthesized for preparing anion exchange membranes (AEMs). Hexadecyldimethylamine with a long alkyl chain was used as the quaternization reagent to form a comb-shaped architecture of the copolymers. Due to the presence of a long alkyl side chain with hydrophobicity, the as-synthesized comb-shaped AEMs possess a self-anti-swelling property resulting in a low water uptake and swelling ratio. The PES-B100-C16 membrane exhibits excellent alkaline stability due to the presence of large volumetric β-alkyl chains linking to the cationic group that resist the attack of OH−, and retain available ionic conductivity in a 2 M KOH solution at 60 °C for 360 h. An open circuit voltage of the single cell reached 0.67 V, and the maximum power density was 43 mW cm2 at a current density of 125 mA cm−2 without optimization in a single H2/O2 alkaline fuel cell at 50 °C.
酚酞基聚(亚芳基醚砜腈)多嵌段共聚物作为碱性燃料电池阴离子交换膜
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