Co_3O_4@TiO_2 fiber-in-tube型复合纳米纤维的制备及其超级电容性质的研究
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- 英文论文题名：Facile Synthesis of Co_3O_4@TiO_2 fiber-in-tube Nanostuctures with High Supercapacitor Performance
- 论文作者：朱云 ; 乜广弟 ; 杨泽洲 ; 姜颜洲 ; 王策 ; 卢晓峰
- 英文论文作者：Yun Zhu ; Guangdi Nie ; Zezhou Yang ; Yanzhou Jiang ; Ce Wang ; Xiaofeng Lu ; Department of Chemistry ; Jilin University
- 年：2016
- 作者机构：吉林大学化学学院麦克德尔米德实验室;
- 论文关键词：超级电容器 ; 纳米复合材料 ; fiber-in-tube型纳米纤维 ; Co3O4@TiO2
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第二十九分会：电化学材料
- 语种：中文
- 分类号：TB383.1;TM53
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第二十九分会 ; 电化学材料
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：151k
- 原文格式：D
- 会议级别：全国
摘要
在能源危机日益严峻的今天,可持续发展新型能源装置的开发与利用迫在眉睫。为解决这个问题,人们研发出多种新型能源材料,如碳基材料,氧化物,高分子材料等。其中具有纳米结构的各种功能材料扮演着十分重要的角色,作为电极材料可以构筑性能良好的电化学能量储存器件,例如电池和超级电容器等,有效地缓解能源匮乏问题。在多种多样的纳米材料中,复合材料能够将几种材料的特性结合从而在能量转换和能量储存方面拥有更为卓越的性质。在本文所叙述的工作中,我们提出一种简便、温和的方法以SiO_2为牺牲模板来合成Co_3O_4@TiO_2 fiber-in-tube型纳米纤维。Co_3O_4@TiO_2 fiber-in-tube型拥有高比容量、优异的循环稳定性能并且于环境无污染,使其成为一种很好的超级电容器电极材料。此外,Co_3O_4和TiO_2之间可调控的间距使电解液得到更多的流动空间,拥有更好的浸润性,对电容器性质也会有很大的提升。
Nowadays, the running out of energy has been a worldwide problem, and nanotechnology plays an important role in solving the problem by providing electrochemical energy storage devices(e.g. batteries and supercapacitors). Among various types of functional materials, composite nanomaterials with well-defined characteristics possess excellent energy conversion and storage ability. In this work, we demonstrate a simple strategy to synthesize Co_3O_4@TiO_2 fiber-in-tube nanostructures by etching SiO_2 as sacrificial template. Co_3O_4@TiO_2 fiber-in-tube structured materials could exhibit high specific capacitance and good cycling stability performance which make it a remarkable material in supercapacitor electrodes. And the tunable space between Co_3O_4 and TiO_2 gives a fluent channel for electrolyte solution and better wetting properties, leading to a great improvement in supercapacitor performance.
Nowadays, the running out of energy has been a worldwide problem, and nanotechnology plays an important role in solving the problem by providing electrochemical energy storage devices(e.g. batteries and supercapacitors). Among various types of functional materials, composite nanomaterials with well-defined characteristics possess excellent energy conversion and storage ability. In this work, we demonstrate a simple strategy to synthesize Co_3O_4@TiO_2 fiber-in-tube nanostructures by etching SiO_2 as sacrificial template. Co_3O_4@TiO_2 fiber-in-tube structured materials could exhibit high specific capacitance and good cycling stability performance which make it a remarkable material in supercapacitor electrodes. And the tunable space between Co_3O_4 and TiO_2 gives a fluent channel for electrolyte solution and better wetting properties, leading to a great improvement in supercapacitor performance.
引文
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[2]Geng,H.;Ang,H.;Ding,X.;Tan,H.;Guo,G.;Zheng,J.;Yan,Q.;Gu,H.Nanoscale 2016,8:2967.
[3]Wang,J.;Yang,N.;Tang,H.;Dong,Z.;Jin,Q.;Wang,D.Angew.Chem.Int.Ed.2013,52:6417.
[4]Deori,K.;Ujjain,S.;Sharma,R.;Deka,S.ACS Appl.Mater.Interfaces 2013,5:10665.