Maximizing utilization of carbon fibers by bimetallic-catalytic etching and electrochemical modification for difunctional aqueous supercapacitors

doi:10.1039/d1se00773d

	Maximizing utilization of carbon fibers by bimetallic-catalytic etching and electrochemical modification for difunctional aqueous supercapacitors
	Zhang, Jie 1,2; Zhang, Hao 1,2; Li, Wenli 1,2; Xu, Guangwen 1; Cui, Yanbin 1,2
刊名	SUSTAINABLE ENERGY & FUELS
	2021-07-22
页码	10
ISSN号	2398-4902
DOI	10.1039/d1se00773d
英文摘要	Carbon fiber cloth with high utilization is urgently needed for portable and wearable electronics. We report herein an interconnected 3D primitive outer layer by utilizing two disparate catalytic etching behaviors based on a bimetallic layered double hydroxide precursor. After subsequent electro-modification, the resulting carbon cloth textile was directly applied as a free-standing electrode. The comprehensive strategy not only furnishes carbon fiber textiles with a loosely graphitic outer layer and hierarchical porosity, but also enables the efficient incorporation of oxygen functionalities onto the surface while retaining high mechanical strength and conductivity. The optimal electrode exhibits superhydrophilicity and delivers an impressive areal capacitance of 1089 mF cm(-2) and a widened potential of -1.3-0 V. Upon further coupling with onion-like MnO2/carbon cloth and Zn foil, an asymmetric device with enhanced energy density (7.17 mW h cm(-3)) and a novel hybrid Zn-ion supercapacitor with a long cycling life are assembled, respectively. This synthetic strategy provides new insights into the etching of carbonaceous materials and may open up enormous possibilities for the pretreatment of carbon substrates.
资助项目	Fund of State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering, Chinese Academy of Sciences[MPCS-2019-A-03]
WOS关键词	LAYERED DOUBLE HYDROXIDES ; HIGH-PERFORMANCE ; ENERGY-STORAGE ; TIO2 ANATASE ; NANOPARTICLES ; ANODE ; CAPABILITY ; NANOWIRES ; CHEMISTRY ; WATER
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000683050800001
资助机构	Fund of State Key Laboratory of Multiphase Complex Systems Institute of Process Engineering, Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/49584]
专题	中国科学院过程工程研究所
通讯作者	Cui, Yanbin
作者单位	1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Jie,Zhang, Hao,Li, Wenli,et al. Maximizing utilization of carbon fibers by bimetallic-catalytic etching and electrochemical modification for difunctional aqueous supercapacitors[J]. SUSTAINABLE ENERGY & FUELS,2021:10.
APA	Zhang, Jie,Zhang, Hao,Li, Wenli,Xu, Guangwen,&Cui, Yanbin.(2021).Maximizing utilization of carbon fibers by bimetallic-catalytic etching and electrochemical modification for difunctional aqueous supercapacitors.SUSTAINABLE ENERGY & FUELS,10.
MLA	Zhang, Jie,et al."Maximizing utilization of carbon fibers by bimetallic-catalytic etching and electrochemical modification for difunctional aqueous supercapacitors".SUSTAINABLE ENERGY & FUELS (2021):10.