材料科学
电致变色
纳米技术
聚合物
储能
基质(水族馆)
超分子化学
光电子学
化学工程
电化学
复合材料
分子
有机化学
电极
工程类
物理化学
地质学
功率(物理)
物理
化学
海洋学
量子力学
作者
Shiyou Liu,Congyuan Wei,Han Wang,Wei Yang,Jian Zhang,Zhuanpei Wang,Wei Zhao,Pooi See Lee,Guofa Cai
出处
期刊:Nano Energy
[Elsevier]
日期:2023-06-01
卷期号:110: 108337-108337
被引量:13
标识
DOI:10.1016/j.nanoen.2023.108337
摘要
Two-dimensional porous metallo-supramolecular polymers (MSPs) have shown promising prospects for electrochemical-controlled functional devices as their highly reversible metal-centered redox chemistry. However, parallel efforts to solution-processable large-area uniform film based on high-quality MSPs have encountered with limited success. Herein, we develop a scalable method for synthesizing MSP-Fe with "gram" scale by coordinating 1,3,5-tris(4-(2,2′:6′,2″-terpyridyl)phenyl)benzene with Fe(II) ions. The uniform MSP-Fe film is assembled on a transparent conductive substrate by electrostatic spray technology. The obtained MSP-Fe films exhibit excellent electrochromic performance and energy storage property simultaneously, such as ultrahigh coloration efficiency of 1103.9 ( ± 100) cm2 C−1, fast switching speed (< 1.5 s), large optical contrast (> 71.7%), and high specific capacity (12.01 mAh g−1). More importantly, the degradation of optical contrast is only 3% after 10,000 cycles, proving the remarkable cycle stability of the MSP-Fe film. We further demonstrate a smart energy-storage indicator assembled by the MSP-Fe films, in which the energy-storage level is visually perceptible and recognizable in real-time. Furthermore, a large-area semi-solid-state electrochromic device (225 cm2) is successfully constructed based on MSP-Fe films, which achieves a uniform, fast, and reversible color variation across the device.
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