Porous and free-standing Ti3C2Tx-RGO film with ultrahigh gravimetric capacitance for supercapacitors

被引：0

作者：

Yongzheng Fang ^{[1
]}

Bowen Yang ^{[1
]}

Dongtong He ^{[1
]}

Huipeng Li ^{[1
]}

Kai Zhu ^{[1
,2
]}

Lin Wu ^{[3
]}

Ke Ye ^{[1
]}

Kui Cheng ^{[1
]}

Jun Yan ^{[1
]}

Guiling Wang ^{[1
]}

Dianxue Cao ^{[1
]}

机构：

[1] Key Laboratory of Superlight Materials and Surface Technology,Ministry of Education,College of Material Science and Chemical Engineering,Harbin Engineering University

[2] Key Laboratory of Advanced Chemical Power Sources,Guizhou Meiling Power Sources Co.,Ltd.

[3] Teachers Education College of Harbin Normal University

来源：

ChineseChemicalLetters | 2020年 / 31卷 / 04期

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

MXene; RGO; Cross-linked porous; Supercapacitors; High capacitance; Thickness independent;

D O I：

暂无

中图分类号：

TB383.2 []; TM53 [电容器];

学科分类号：

070205 ; 080501 ; 080801 ; 1406 ;

摘要：

MXene-based electrode materials exhibit favorable supercapacitor performance in sulfuric acid due to praised pseudocapacitance charge storage mechanism.However,self-stacking of conventional MXene electrodes severely restricts their electrochemical performance,especially at high loading.Herein,a flexible cross-linked porous Ti3C2Tx-MXene-reduced graphene oxide(Ti3C2Tx-RGO) film is skillfully designed and synthesized by microscopic explosion of graphene oxide(GO) at sudden high te mperature.The generated chamber structure between layers could hold a few of electrolyte,leading to a close-fitting reaction at interlayer and avoiding complex ions transmission paths.The Ti3C2Tx-RGO film displayed a preferable rate performance than that of pure Ti3C2Txfilm and a high capacitance of 505 F/g at 2 mV/s.Furthermore,the uniform intralayer structure and unique energy storage process lead to thicknessindependenct electrochemical performances.This work provides a simple and feasible improvement approach for the design of MXene-based electrodes,which can be spread other electrochemical systems limited by ions transport,such as metal ions batteries and catalysis.

引用

页码：1004 / 1008

页数：5

共 7 条

[1] Simplified fabrication of high areal capacitance all-solid-state micro-supercapacitors based on graphene and MnO2 nanosheets[J]. Jieqiong Qin,Zhong-Shuai Wu,Feng Zhou,Yanfeng Dong,Han Xiao,Shuanghao Zheng,Sen Wang,Xiaoyu Shi,Haibo Huang,Chenglin Sun,Xinhe Bao.Chinese Chemical Letters. 2018(04)
[2] Flexible asymmetric supercapacitor based on MnO 2 honeycomb structure[J] . Yuling Chen,Chao Chen,Ruitao Lv,Wanci Shen,Feiyu Kang,Nyanhwa Tai,Zhenghong Huang.Chinese Chemical Letters . 2018 (4)
[3] Three-dimensional electrode with conductive Cu framework for stable and fast Li-ion storage[J] . Xizheng Liu,Ruie Zhang,Wei Yu,Yijun Yang,Zhifeng Wang,Chao Zhang,Yoshio Bando,Dmitri Golberg,Xi Wang,Yi Ding.Energy Storage Materials . 2018
[4] Nitrogen and sulfur co-doped porous carbon derived from bio-waste as a promising electrocatalyst for zinc-air battery[J] . Zhuo Ma,Kaixuan Wang,Yunfeng Qiu,Xizheng Liu,Changyan Cao,Yujie Feng,PingAn Hu.Energy . 2018
[5] Li-ion uptake and increase in interlayer spacing of Nb4C3 MXene[J] . Shuangshuang Zhao,Xing Meng,Kai Zhu,Fei Du,Gang Chen,Yingjin Wei,Yury Gogotsi,Yu Gao.Energy Storage Materials . 2017
[6] Rapid hydrothermal synthesis of hierarchical nanostructures assembled from ultrathin birnessite-type MnO 2 nanosheets for supercapacitor applications[J] . Xiong Zhang,Peng Yu,Haitao Zhang,Dacheng Zhang,Xianzhong Sun,Yanwei Ma.Electrochimica Acta . 2013
[7] M.Q.Zhao,X.Xie,C.E.Ren et al. Advanced Materials . 2017

← 1 →