A polymer-supported electrolyte-affinity hybrid membrane and modification of the amphiphilic block copolymer for use as a super-high flexible and high-performance supercapacitor

doi:10.1039/c7se00076f

	A polymer-supported electrolyte-affinity hybrid membrane and modification of the amphiphilic block copolymer for use as a super-high flexible and high-performance supercapacitor
	Zhao, Xiaoning; Yang, Yunlong; Wu, Jiayu; Tan, Yongtao; Liu, Ying; Kong, Lingbin; Kang, Long; Ran, Fen
刊名	SUSTAINABLE ENERGY & FUELS
	2017-07
卷号	1 期号:5 页码:1074-1081
关键词	Activated carbon Block copolymers Capacitance Electrodes Electrolytic capacitors Nickel compounds Phase separation Porosity Potassium hydroxide Supercapacitor Surface segregation
ISSN号	2398-4902
DOI	10.1039/c7se00076f
英文摘要	In this study, a super-high flexible membrane electrode (FME) was developed via a facile method based on liquid-liquid phase separation involving the migration and self-assembly of the components. Note that the surface segregation and chain orientation of the amphiphilic block copolymer PAA-b-PAN-b-PAA on the membrane surface during the phase separation process provide the hierarchical porous structure and electrolyte-affinity electrode surface; this hierarchical porous structure provides pathways for the electrolyte ions into and from the electrolyte/solution interface for further contact and reaction of the electrochemically active materials with the electrolyte ions. In a three-electrode system, the specific capacitance of FME-Ni(OH)(2) can reach up to 2198.6 F g(-1) (769.5 C g(-1)) at the current density of 0.5 A g(-1) from 0 to 0.35 V as compared to that for non-flexible Ni(OH)(2) (1588.6 F g(-1); 556.0 C g(-1)). Moreover, a flexible asymmetric supercapacitor with FME-Ni(OH)(2) as the positive electrode and FME-AC (commercial activated carbon) as the negative electrode showed the high specific capacitance of 102.2 F g(-1) (163.5 C g(-1)) and the maximum energy density of 36.3 W h kg(-1) at the power density of 400 W kg(-1); moreover, it retained the energy density of 20.6 W h kg(-1) at the high power density of 4000 W kg(-1) in the potential window ranging from 0 to 1.6 V in a 6 M KOH aqueous solution.
资助项目	National Natural Science Foundation of China[51203071][51363014][51463012] ; China Postdoctoral Science Foundation[2014M552509][2015T81064] ; Natural Science Funds of the Gansu Province[2015GS05123] ; Program for Hongliu Distinguished Young Scholars in Lanzhou University of Technology[J201402]
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:000422784900014
状态	已发表
内容类型	期刊论文
源URL	[http://119.78.100.223/handle/2XXMBERH/33199]
专题	材料科学与工程学院省部共建有色金属先进加工与再利用国家重点实验室
通讯作者	Ran, Fen
作者单位	Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Xiaoning,Yang, Yunlong,Wu, Jiayu,et al. A polymer-supported electrolyte-affinity hybrid membrane and modification of the amphiphilic block copolymer for use as a super-high flexible and high-performance supercapacitor[J]. SUSTAINABLE ENERGY & FUELS,2017,1(5):1074-1081.
APA	Zhao, Xiaoning.,Yang, Yunlong.,Wu, Jiayu.,Tan, Yongtao.,Liu, Ying.,...&Ran, Fen.(2017).A polymer-supported electrolyte-affinity hybrid membrane and modification of the amphiphilic block copolymer for use as a super-high flexible and high-performance supercapacitor.SUSTAINABLE ENERGY & FUELS,1(5),1074-1081.
MLA	Zhao, Xiaoning,et al."A polymer-supported electrolyte-affinity hybrid membrane and modification of the amphiphilic block copolymer for use as a super-high flexible and high-performance supercapacitor".SUSTAINABLE ENERGY & FUELS 1.5(2017):1074-1081.