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- Title
Nanoparticulate Conjugated Microporous Polymer with Post‐Modified Benzils for Enhanced Pseudocapacitor Performance.
- Authors
Park, So Young; Kang, Chang Wan; Lee, Sang Moon; Kim, Hae Jin; Ko, Yoon‐Joo; Choi, Jaewon; Son, Seung Uk
- Abstract
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 FeCl3‐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.
- Subjects
POLYMERS; KINETIC control; CONJUGATED polymers; MOIETIES (Chemistry); ELECTRODE performance
- Publication
Chemistry - A European Journal, 2020, Vol 26, Issue 54, p12343
- ISSN
0947-6539
- Publication type
Article
- DOI
10.1002/chem.202002311