Park So Young, Kang Chang Wan, Lee Sang Moon, Kim Hae Jin, Ko Yoon-Joo, Choi Jaewon, Son Seung Uk
Department of Chemistry, Sungkyunkwan University, Suwon, 16419, Korea.
Korea Basic Science Institute, Daejeon, 34133, Korea.
Chemistry. 2020 Sep 25;26(54):12343-12348. doi: 10.1002/chem.202002311. Epub 2020 Sep 7.
Conjugated microporous polymer (CMP)-based energy-storage materials were developed for pseudocapacitors. Nanoparticulate CMP (N-CMP) with an average diameter of 41±4 nm was prepared through kinetic growth control in the Sonogashira coupling of 1,3,5-triethynylbenzene with 1,4-diiodobenzene. The N-CMP is rich in a diphenylacetylene moiety in its chemical structure. Through the FeCl -catalyzed oxidation of diphenylacetylene moieties, N-CMP with benzil moieties (N-CMP-BZ) was prepared and showed enhanced electrochemical performance as an electrode material of pseudocapacitors, compared with CMP, CMP-BZ, and N-CMP. In model studies, the benzil was redox active and showed two-electron reduction behavior. The excellent electrochemical performance of N-CMP-BZ is attributable to the enhanced utilization of functional sites by a nanosize effect and the additional redox contribution of benzil moieties.
基于共轭微孔聚合物（CMP）的储能材料被开发用于赝电容器。通过在1,3,5-三乙炔基苯与1,4-二碘苯的Sonogashira偶联反应中进行动力学生长控制，制备出平均直径为41±4 nm的纳米颗粒CMP（N-CMP）。N-CMP的化学结构中富含二苯乙炔部分。通过FeCl催化二苯乙炔部分的氧化反应，制备出具有联苯甲酰部分的N-CMP（N-CMP-BZ），与CMP、CMP-BZ和N-CMP相比，N-CMP-BZ作为赝电容器的电极材料表现出增强的电化学性能。在模型研究中，联苯甲酰具有氧化还原活性，并表现出双电子还原行为。N-CMP-BZ优异的电化学性能归因于纳米尺寸效应增强了功能位点的利用率以及联苯甲酰部分额外的氧化还原贡献。
