文章信息/Info

Title:

Research Progress on Graphene and Its Composite Free�睸tanding Films

文章編號(hào):

1674-3962(2020)03-0226-08

作者:

侯朝霞; 李建君; 李　偉; 薄大明

（沈陽大學(xué)機(jī)械工程學(xué)院 遼寧省新型功能材料與化學(xué)工藝重點(diǎn)實(shí)驗(yàn)室，遼寧 沈陽 110044）

Author(s):

HOU Zhaoxia;  LI Jianjun;  LI Wei;  BO Daming

（Liaoning Province Key Laboratory of New Functional Materials and Chemical Technology, School of Mechanical Engineering, Shenyang University, Shenyang 110044, China）

關(guān)鍵詞:

石墨烯; 復(fù)合材料; 自支撐膜; 工藝; 電化學(xué)性能

Keywords:

graphene; composites; free�瞫tanding films; process; electrochemical performance

分類號(hào):

TB383.2;TB332

DOI:

10.7502/j.issn.1674-3962.201811013

文獻(xiàn)標(biāo)志碼:

A

摘要:

作為新一代超級(jí)電容器電極材料，石墨烯具有比表面積高、化學(xué)穩(wěn)定性和力學(xué)性能優(yōu)異等特點(diǎn)。但是，制備致密度高、結(jié)構(gòu)穩(wěn)定性好的石墨烯電極時(shí)往往需要添加黏結(jié)劑，而黏結(jié)劑的引入會(huì)削弱電極材料的電化學(xué)性能，制備石墨烯及其復(fù)合自支撐膜是解決該問題的有效手段之一。介紹了石墨烯自支撐膜的成膜方法，包括抽濾誘導(dǎo)自組裝、氣液界面自組裝、涂覆法和層層自組裝等傳統(tǒng)方法，以及一種新穎的低溫旋切成膜方法。著重總結(jié)了導(dǎo)電聚合物/石墨烯、金屬氧化物/石墨烯及三元石墨烯基復(fù)合膜的研究進(jìn)展。提出了石墨烯及其復(fù)合自支撐導(dǎo)電膜未來的發(fā)展趨勢(shì)，包括開發(fā)新型、簡便、量產(chǎn)的薄膜電極制備技術(shù)、控制石墨烯及其復(fù)合自支撐膜的微觀結(jié)構(gòu)、將各種成膜方法運(yùn)用于制作便攜式電子器件或柔性電池中等。

Abstract:

Graphene is an electrode material for the new generation of supercapacitors with high specific surface area, excellent chemical stability and mechanical properties. However, the binder is usually added to obtain the graphene electrodes with chemical stability and high density, which will affect the electrochemical performance of the electrods. The free-standing graphene and its composite film is one of the effective ways to solve the problem. The formation methods of graphene free-standing film were introduced, including traditional methods such as suction filtration induced self-assembly, gas-liquid interface self-assembly, coating and layer by layer self-assembly and a novel low-temperature rotary method. The research progress of graphene-based conductive composite films including conductive polymers/graphene, metal oxides/graphene and multi-component composite films was mainly summarized. The future development trends of graphene and its composite free-standing conductive films were proposed, including the development of the new, simple and scaled preparation technology for film electrodes, effective controls of the microstructure of graphene and its composite free-standing films, and applications of various film forming methods in portable electronic devices or flexible batteries.