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High-performance supercapacitors based on superior Co3O4 nanorods electrode for integrated energy harvesting-storage system
Pan, Xuexue1; Ji, Fengzhen1; Xia, Qiuyu1; Chen, Xinman1; Pan, Hui2; Khisro, Said Nasir3; Luo, Shixiong4; Chen, Ming4; Zhang, Yong1
2018-08-20
Source PublicationELECTROCHIMICA ACTA
ISSN0013-4686
Volume282Pages:905-912
Abstract

The Co3O4 nanorods (NR-Co3O4) electrode is synthesized by using a calcination-process assisted hydrothermal method. Each Co3O4 nanorod possesses porous structure with well-defined nanoparticles. The unique NR-Co3O4 electrode exhibits the superior electrochemical performances, including a specific capacity of 1272 C g(-1) at a current density of 1.89 A g(-1) and 90.3% of capacity retention after 18,000 cycles at 23.58 A g(-1). The NR-Co3O4//active carbon (AC) device is also assembled to probe the virtues of NR-Co3O4 electrode, manifesting a maximum energy density and power density of 55.4 Wh kg(-1) and 4490 Wkg(-1), respectively. Amazingly, the NR-Co3O4//AC device exhibits the super-long cycling stability with 90.4% retention ratio after 36,000 cycles. Furthermore, an energy harvesting-storage system is constructed by integrating the commercial solar panel with the power package composing of four NRCo3O4// AC devices in-series, witnessing the fast photo-charge and discharge capability of NR-Co3O4//AC device. These facts strongly demonstrate the synthesized NR-Co3O4 is promising towards the practical application for self-powered technology in future. (C) 2018 Elsevier Ltd. All rights reserved.

KeywordSupercapacitors Co3o4 Nanorods Harvesting-storage System Cycling Stability
DOI10.1016/j.electacta.2018.06.127
URLView the original
Indexed BySCI
Language英语
WOS Research AreaElectrochemistry
WOS SubjectElectrochemistry
WOS IDWOS:000439874200106
PublisherPERGAMON-ELSEVIER SCIENCE LTD
The Source to ArticleWOS
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Cited Times [WOS]:6   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionInstitute of Applied Physics and Materials Engineering
Affiliation1.South China Normal Univ, Inst Optoelect Mat & Technol, Guangdong Engn Technol Res Ctr Low Carbon & Adv E, Guangzhou 510631, Guangdong, Peoples R China
2.Univ Macau, Inst Appl Phys & Mat Engn, Taipa, Macao, Peoples R China
3.Univ Kotli, Phys Dept, Azad Kashmir 11100, Pakistan
4.Guangdong Jiuzhou Solar Energy Sci & Technol Co L, Zhongshan 528437, Peoples R China
Recommended Citation
GB/T 7714
Pan, Xuexue,Ji, Fengzhen,Xia, Qiuyu,et al. High-performance supercapacitors based on superior Co3O4 nanorods electrode for integrated energy harvesting-storage system[J]. ELECTROCHIMICA ACTA,2018,282:905-912.
APA Pan, Xuexue.,Ji, Fengzhen.,Xia, Qiuyu.,Chen, Xinman.,Pan, Hui.,...&Zhang, Yong.(2018).High-performance supercapacitors based on superior Co3O4 nanorods electrode for integrated energy harvesting-storage system.ELECTROCHIMICA ACTA,282,905-912.
MLA Pan, Xuexue,et al."High-performance supercapacitors based on superior Co3O4 nanorods electrode for integrated energy harvesting-storage system".ELECTROCHIMICA ACTA 282(2018):905-912.
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