Institute of Chemistry, Saint Petersburg University, 199034 St. Petersburg, Russia.
School of Physics and Engineering, ITMO University, Kronverksky Pr. 49A, 197101 St. Petersburg, Russia.
Molecules. 2022 Dec 12;27(24):8798. doi: 10.3390/molecules27248798.
The conductivity of the polymeric energy storage materials is the key factor limiting their performance. Conductivity of polymeric NiSalen materials, a prospective class of energy storage materials, was found to depend strongly on the length of the bridge between the nitrogen atoms of the ligand. Polymers obtained from the complexes containing C alkyl and hydroxyalkyl bridges showed an electrical conductivity one order of magnitude lower than those derived from more common complexes with C alkyl bridges. The observed difference was studied by means of cyclic voltammetry on interdigitated electrodes and operando spectroelectrochemistry, combined with density functional theory (DFT) calculations.
聚合物储能材料的电导率是限制其性能的关键因素。研究发现，作为有前景的储能材料之一的聚合物 NiSalen 材料的电导率强烈依赖于配体氮原子之间桥的长度。与含有 C 烷基桥的更常见的配合物相比，来自含有 C 烷基和羟烷基桥的配合物的聚合物的电导率低一个数量级。通过在叉指电极上的循环伏安法和原位光谱电化学，并结合密度泛函理论（DFT）计算，研究了观察到的差异。
