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Updated: Sep 19, 2025

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以POM为基础的Preyssler类型的CP 包含V类型的N-异环联体作为质子导体

Jun-Jie Cai¹, Jin Han¹, Yu Nie¹

¹Henan Key Laboratory of Polyoxometalate, College of Chemistry and Molecular Sciences, Henan University, Kaifeng, Henan 475004, PR China.

Inorganic chemistry

|June 19, 2025

概括

新的基于聚氧甲的协调聚合物 (基于POM的CP) 显示出有前途的质子导电性. 将这些材料纳入Nafion膜可以显著提高它们对潜在应用的性能.

科学领域:

材料科学材料科学材料科学
无机化学无机化学
纳米技术纳米技术

背景情况:

基于聚氧甲酸盐的协调聚合物 (基于POM的CP) 是具有吸引力的质子导体材料.
普雷斯勒离子,其富含氧气的表面,为质子导电提供独特的结构和功能优势.
开发高效的质子导体对于燃料电池等能源应用至关重要.

研究的目的:

合成和描述基于POM的新型CP,其中包括Preyssler离子和V型N-异环 (btp).
为了研究这些新材料的质子导电性.
评估这些CP在复合膜中的增强质子导电的潜力.

主要方法:

三种协调聚合物的合成: {[Zn4(H2O) 8 ((H7P5W30O110) ((btp) 4) ·6H2O} n (1), {[Ni4 ((H2O) 8 ((H7P5W30O110) ((btp) 4) ·14H2O} n (2) 和 {[Cd5 ((μ2-H2O)) ((H2O)) 14 ((H5P5W30O110) ((btp) 4) ·8H2O} n (3)).
合成化合物的结构分析以确定它们的框架架构 (2D层和3D框架).
在不同的湿度和温度条件下,以及在使用Nafion的复合膜中进行质子导电性测量.

主要成果:

化合物1和2形成具有sql拓的2D层结构,而化合物3呈现出一个3D框架.
合成的基于POM的CP显示出良好的内在质子导电性,在85°C和98%的RH下达到2.92 × 10−3 S cm−1
在相同的条件下,纳菲安复合材料膜的整合显著提高了质子导电性,达到10−2 S cm−1.

结论:

合成的Preyssler型基于POM的CP显示出有前途的质子导电性.
结构的多样性 (2D与3D) 影响材料的特性.
使用Nafion的复合膜显示出显著改善的质子导电性,突出了它们对先进能源应用的潜力.

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