电致变色
原位
电化学
共价键
聚合
材料科学
原位聚合
化学工程
共价有机骨架
高分子化学
电极
化学
有机化学
聚合物
复合材料
物理化学
工程类
作者
Ying-Ao Wang,Qiong Wu,Xun Wang,Min Jiang,Shouxin Zhang,Xiaojuan Chen,Ru‐Ping Liang,Jian‐Ding Qiu
标识
DOI:10.1002/anie.202413071
摘要
A rapid in situ synthesis of electrochromic covalent organic frameworks (EC‐COFs) was proposed by using green electrochemical interface polymerization of N,N,N’,N’‐tetrakis(p‐aminophenyl)p‐phenylenediamine (TPDA) and 2,5‐dihydroxy‐p‐phenylenedicarboxaldehyde (DHBD). The synthetized TPDA‐DHBD films exhibit stable polymorphic colour variations under different applied potentials, which can be attributed to the redox state changes of bis(triphenylamine) and imine electroactive functional groups within the COFs skeleton. TPDA‐DHBD represents markedly different electrochromisms from red to cyan due to the steric hindrance effect caused by the presence of UO22+, demonstrating the unique tunability of COFs materials. This work offers a new feasible idea for rapid EC‐COFs synthesis and tunable EC‐COFs realization.
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