Room-temperature facile synthesis of MnO2 on carbon film via UV-photolysis for supercapacitor

Room-temperature facile synthesis of MnO2 on carbon film via UV-photolysis for supercapacitor

A facile UV-photolysis method has been developed to synthesize birnessite-type MnO2 nanosheets on carbon film at room temperature for supercapacitor electrode materials. The results clearly demonstrated that the specific capacitance of carbon/MnO2 composite electrodes was controlled by the adjustabl...

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Main Authors: Shiwei Liu, Kai Li, Xuebin Zheng
Format: Article
Language:English
Published: Elsevier 2019-02-01
Series:Progress in Natural Science: Materials International
Online Access:http://www.sciencedirect.com/science/article/pii/S1002007118308414
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spelling doaj-1fc4d61e9bef4fdb8a6bb344f17df26c2020-11-25T00:34:52ZengElsevierProgress in Natural Science: Materials International1002-00712019-02-012911619Room-temperature facile synthesis of MnO2 on carbon film via UV-photolysis for supercapacitorShiwei Liu0Kai Li1Xuebin Zheng2Key Laboratory of Inorganic Coating Materials CAS, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, ChinaKey Laboratory of Inorganic Coating Materials CAS, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China; Corresponding author. Key Laboratory of Inorganic Coating Materials CAS, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China.Key Laboratory of Inorganic Coating Materials CAS, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China; Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China; Corresponding author. Key Laboratory of Inorganic Coating Materials CAS, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, China.A facile UV-photolysis method has been developed to synthesize birnessite-type MnO2 nanosheets on carbon film at room temperature for supercapacitor electrode materials. The results clearly demonstrated that the specific capacitance of carbon/MnO2 composite electrodes was controlled by the adjustable UV-photolysis reaction time in KMnO4 solution. For the optimized composite electrode obtained after 2 h reaction, a superior specific capacitance of 277 F g−1 was achieved at current density of 0.2 A g−1. This finding suggests that UV-photolysis is a potential method to fabricate MnO2 on carbon film for supercapacitor. Keywords: UV-Photolysis, MnO2, Nanosheets, Carbon, Supercapacitorhttp://www.sciencedirect.com/science/article/pii/S1002007118308414
collection DOAJ
language English
format Article
sources DOAJ
author Shiwei Liu
Kai Li
Xuebin Zheng
spellingShingle Shiwei Liu
Kai Li
Xuebin Zheng
Room-temperature facile synthesis of MnO2 on carbon film via UV-photolysis for supercapacitor
Progress in Natural Science: Materials International
author_facet Shiwei Liu
Kai Li
Xuebin Zheng
author_sort Shiwei Liu
title Room-temperature facile synthesis of MnO2 on carbon film via UV-photolysis for supercapacitor
title_short Room-temperature facile synthesis of MnO2 on carbon film via UV-photolysis for supercapacitor
title_full Room-temperature facile synthesis of MnO2 on carbon film via UV-photolysis for supercapacitor
title_fullStr Room-temperature facile synthesis of MnO2 on carbon film via UV-photolysis for supercapacitor
title_full_unstemmed Room-temperature facile synthesis of MnO2 on carbon film via UV-photolysis for supercapacitor
title_sort room-temperature facile synthesis of mno2 on carbon film via uv-photolysis for supercapacitor
publisher Elsevier
series Progress in Natural Science: Materials International
issn 1002-0071
publishDate 2019-02-01
description A facile UV-photolysis method has been developed to synthesize birnessite-type MnO2 nanosheets on carbon film at room temperature for supercapacitor electrode materials. The results clearly demonstrated that the specific capacitance of carbon/MnO2 composite electrodes was controlled by the adjustable UV-photolysis reaction time in KMnO4 solution. For the optimized composite electrode obtained after 2 h reaction, a superior specific capacitance of 277 F g−1 was achieved at current density of 0.2 A g−1. This finding suggests that UV-photolysis is a potential method to fabricate MnO2 on carbon film for supercapacitor. Keywords: UV-Photolysis, MnO2, Nanosheets, Carbon, Supercapacitor
url http://www.sciencedirect.com/science/article/pii/S1002007118308414
work_keys_str_mv AT shiweiliu roomtemperaturefacilesynthesisofmno2oncarbonfilmviauvphotolysisforsupercapacitor
AT kaili roomtemperaturefacilesynthesisofmno2oncarbonfilmviauvphotolysisforsupercapacitor
AT xuebinzheng roomtemperaturefacilesynthesisofmno2oncarbonfilmviauvphotolysisforsupercapacitor
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