Solution-processable multicolor TiO2/polyaniline nanocomposite for integrated bifunctional electrochromic energy storage device

被引：38

作者：

Zhang, Siyu ^{[1
,2
]}

Lei, Pengyang ^{[1
,2
]}

Fu, Jianjian ^{[1
,2
]}

Tong, Xingrui ^{[1
,2
]}

Wang, Zhuanpei ^{[1
,2
]}

Cai, Guofa ^{[1
,2
]}

机构：

[1] Henan Univ, Natl & Local Joint Engn Res Ctr High efficiency Di, Sch Mat & Engn, Key Lab Special Funct Mat Minist Educ, Kaifeng 475004, Peoples R China

[2] Henan Univ, Collaborat Innovat Ctr Nano Funct Mat & Applicat, Kaifeng 475004, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2023年 / 607卷

基金：

中国国家自然科学基金;

关键词：

Electrochromism; Composite; Electrostatic spray deposition; Multicolor; Dual functional; POLYANILINE FILMS; CAPACITIVE PERFORMANCES; TUNGSTEN-OXIDE; NANOROD ARRAYS; IN-SITU; NANOTUBES; ELECTRODE; SUPERCAPACITORS; CONSTRUCTION; POLARIZATION;

D O I：

10.1016/j.apsusc.2022.155015

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We report a solution-processable nanocomposite film based on TiO2 and polyaniline (PANI) for high-performance electrochromic and energy storage via the combination of electrostatic spray deposition (ESD) and electropolymerization (EPM) techniques. This combined strategy provides an exciting method for high-performance metal oxide/conducting polymer composite with well-controlled morphology and structure. The obtained TiO2/PANI composite film with a sea urchin-like porous structure exhibits a unique electron donor-acceptor (D-A) structure, facilitating the electron transport from PANI to TiO2. As a result, the nano -composite film presents excellent electrochemical performances in both electrochromic and energy storage as-pects, such as large optical modulation up to 76.9 % at 600 nm, short switching time (<3.6 s), and high coloration efficiency (CE) of 78 cm2 C-1. Furthemore, an intelligent energy-storage indicator with energy level monitoring functionality is designed and constructed based on the multicolor composites, in which the energy -storage level can be visually detected in real-time by the different color variations. This work paves a way for developing multicolor nanomaterials in the field of bifunctional electrochromic energy storage.

引用

页数：8

共 60 条

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