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Alkaline polymers of intrinsic microporosity: high-conduction and low-loss anhydrous proton exchange membranes for energy conversion
Journal of Materials Chemistry A ( IF 10.7 ) Pub Date : 2021-1-18 , DOI: 10.1039/d0ta12100b
Shengyang Zhou 1, 2, 3, 4, 5 , Jiayu Guan 1, 2, 3, 4, 5 , Ziqin Li 1, 2, 3, 4, 5 , Lei Huang 1, 2, 3, 4, 5 , Jifu Zheng 1, 2, 3, 4, 5 , Shenghai Li 1, 2, 3, 4, 5 , Suobo Zhang 1, 2, 3, 4, 5
Journal of Materials Chemistry A ( IF 10.7 ) Pub Date : 2021-1-18 , DOI: 10.1039/d0ta12100b
Shengyang Zhou 1, 2, 3, 4, 5 , Jiayu Guan 1, 2, 3, 4, 5 , Ziqin Li 1, 2, 3, 4, 5 , Lei Huang 1, 2, 3, 4, 5 , Jifu Zheng 1, 2, 3, 4, 5 , Shenghai Li 1, 2, 3, 4, 5 , Suobo Zhang 1, 2, 3, 4, 5
Affiliation
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The development of anhydrous high-temperature proton-exchange membranes (HT-PEMs) combining durable high proton conductivity and modest mechanical properties is a huge challenge to macromolecular design and engineering. HT-PEMs with microporous structures, constructed by the inefficient chain packing of contorted and rigid polymer backbones with imidazole, are reported for the first time. It is found that the widespread and interconnected microporosity of the polymers endows the HT-PEMs with an excellent phosphoric acid (PA) doping level (ADL) and a corresponding superhigh proton conductivity, as well as suitable mechanical properties and PA-retention ability. An outstanding proton conductivity of 330.3 mS cm−1 is obtained at 180 °C under an anhydrous atmosphere, which is superior to those of reported HT-PEMs with far higher ADLs (<260 mS cm−1). The high and stable proton conductivity appears to be related to the interconnected intrinsic microporosity, which increases the PA storage and provides proton-carriers with several highways for fast transport.
中文翻译:
具有固有微孔性的碱性聚合物:用于能量转换的高传导和低损耗无水质子交换膜
结合耐用的高质子传导性和适度的机械性能的无水高温质子交换膜(HT-PEMs)的开发是高分子设计和工程的巨大挑战。首次报道了具有微孔结构的HT-PEM,该结构是通过扭曲和刚性的聚合物主链与咪唑的无效链堆积而构建的。发现聚合物的广泛且互连的微孔性赋予HT-PEM优异的磷酸(PA)掺杂水平(ADL)和相应的超高质子电导率,以及合适的机械性能和PA保留能力。出色的质子传导率330.3 mS cm -1在无水气氛下于180°C时获得的苯甲酸,优于报道的具有更高ADL(<260 mS cm -1)的HT-PEM 。高且稳定的质子电导率似乎与相互连接的固有微孔率有关,这增加了PA的存储量,并为质子载体提供了几条快速运输的高速公路。
更新日期:2021-02-10
中文翻译:
![](https://scdn.x-mol.com/jcss/images/paperTranslation.png)
具有固有微孔性的碱性聚合物:用于能量转换的高传导和低损耗无水质子交换膜
结合耐用的高质子传导性和适度的机械性能的无水高温质子交换膜(HT-PEMs)的开发是高分子设计和工程的巨大挑战。首次报道了具有微孔结构的HT-PEM,该结构是通过扭曲和刚性的聚合物主链与咪唑的无效链堆积而构建的。发现聚合物的广泛且互连的微孔性赋予HT-PEM优异的磷酸(PA)掺杂水平(ADL)和相应的超高质子电导率,以及合适的机械性能和PA保留能力。出色的质子传导率330.3 mS cm -1在无水气氛下于180°C时获得的苯甲酸,优于报道的具有更高ADL(<260 mS cm -1)的HT-PEM 。高且稳定的质子电导率似乎与相互连接的固有微孔率有关,这增加了PA的存储量,并为质子载体提供了几条快速运输的高速公路。