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Article: One-step synthesis of Zn2GeO4/CNT-O hybrid with superior cycle stability for supercapacitor electrodes

TitleOne-step synthesis of Zn2GeO4/CNT-O hybrid with superior cycle stability for supercapacitor electrodes
Authors
KeywordsSupercapacitors
Crosslinked hybrid
Zn2GeO4/carbon nanotubes
Superior cyclic durability
Rapid electron transport
Issue Date2019
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/cej
Citation
Chemical Engineering Journal, 2019, v. 374, p. 29-38 How to Cite?
AbstractCurrently, there are three primary obstacles to the development of high-performance supercapacitors: low electron conductivity of the electrode materials used, their poor ion-transport efficiency, and the unstable structure. Herein, to overcome these obstacles, one-dimensional Zn2GeO4 (ZGO) rods were grown within a carbon nanotube (CNT) framework using a simple one-step hydrothermal strategy for use as a supercapacitor electrode material. The crosslinked ZGO/CNT-O hybrid exhibits a large contact surface area with respect to electrolytes, contains abundant electrochemical active sites, and has short ion-diffusion paths. Further, the flexible CNTs act as superior connective bridges, promoting electron transmission and resulting in a stable structure. The ZGO/CNT-O hybrid showed a specific capacitance of 164.25 F/g at a current density of 1 A/g. It also displayed superior cycling durability, exhibiting a specific capacity of 120 F/g at a current density of 10 A/g, even after 200,000 cycles. A simple crosslinking strategy and prolonged cycle durability are demonstrated, which endow ZGO/CNT-O with potential for use in supercapacitor electrodes.
Persistent Identifierhttp://hdl.handle.net/10722/274007
ISSN
2019 Impact Factor: 10.652
2015 SCImago Journal Rankings: 1.743

 

DC FieldValueLanguage
dc.contributor.authorLiu, P-
dc.contributor.authorRu, Q-
dc.contributor.authorZheng, P-
dc.contributor.authorShi, Z-
dc.contributor.authorLiu, Y-
dc.contributor.authorSu, C-
dc.contributor.authorHou, X-
dc.contributor.authorSu, S-
dc.contributor.authorLing, FCC-
dc.date.accessioned2019-08-18T14:53:11Z-
dc.date.available2019-08-18T14:53:11Z-
dc.date.issued2019-
dc.identifier.citationChemical Engineering Journal, 2019, v. 374, p. 29-38-
dc.identifier.issn1385-8947-
dc.identifier.urihttp://hdl.handle.net/10722/274007-
dc.description.abstractCurrently, there are three primary obstacles to the development of high-performance supercapacitors: low electron conductivity of the electrode materials used, their poor ion-transport efficiency, and the unstable structure. Herein, to overcome these obstacles, one-dimensional Zn2GeO4 (ZGO) rods were grown within a carbon nanotube (CNT) framework using a simple one-step hydrothermal strategy for use as a supercapacitor electrode material. The crosslinked ZGO/CNT-O hybrid exhibits a large contact surface area with respect to electrolytes, contains abundant electrochemical active sites, and has short ion-diffusion paths. Further, the flexible CNTs act as superior connective bridges, promoting electron transmission and resulting in a stable structure. The ZGO/CNT-O hybrid showed a specific capacitance of 164.25 F/g at a current density of 1 A/g. It also displayed superior cycling durability, exhibiting a specific capacity of 120 F/g at a current density of 10 A/g, even after 200,000 cycles. A simple crosslinking strategy and prolonged cycle durability are demonstrated, which endow ZGO/CNT-O with potential for use in supercapacitor electrodes.-
dc.languageeng-
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/cej-
dc.relation.ispartofChemical Engineering Journal-
dc.subjectSupercapacitors-
dc.subjectCrosslinked hybrid-
dc.subjectZn2GeO4/carbon nanotubes-
dc.subjectSuperior cyclic durability-
dc.subjectRapid electron transport-
dc.titleOne-step synthesis of Zn2GeO4/CNT-O hybrid with superior cycle stability for supercapacitor electrodes-
dc.typeArticle-
dc.identifier.emailLing, FCC: ccling@hkucc.hku.hk-
dc.identifier.authorityLing, FCC=rp00747-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.cej.2019.05.182-
dc.identifier.scopuseid_2-s2.0-85066248112-
dc.identifier.hkuros301996-
dc.identifier.volume374-
dc.identifier.spage29-
dc.identifier.epage38-
dc.publisher.placeNetherlands-

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