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A new synthetic route to hollow Co3O4 octahedra for supercapacitor applications
Alternative TitleCrystengcomm
Cao, Yuebin1; Yuan, Fangli2; Yao, Mingshui2; Bang, Jin Ho3,4; Lee, Jung-Ho1
2014
Source PublicationCRYSTENGCOMM
ISSN1466-8033
Volume16Issue:5Pages:826-833
AbstractCo3O4 hollow octahedra were successfully synthesized via a facile one-step solvothermal route. Time-resolved electron microscopy and X-ray diffraction analyses revealed that the Co3O4 hollow octahedra were formed through the self-assembly of primary nanocrystals followed by subsequent Ostwald ripening. Subtle control over the reaction conditions led to different morphologies (hexagonal plates and nanocubes) and crystal structures (beta-Co(OH)(2)-Co3O4 composite). The unique hollow nanostructure rendered our Co3O4 potentially useful for charge-storage applications. To prove its usefulness, the pseudocapacitive performance of the Co3O4 hollow octahedra as a supercapacitor electrode was evaluated and exhibited a charge storage capacity of 192 F g(-1) with good long-term cyclability.; Co3O4 hollow octahedra were successfully synthesized via a facile one-step solvothermal route. Time-resolved electron microscopy and X-ray diffraction analyses revealed that the Co3O4 hollow octahedra were formed through the self-assembly of primary nanocrystals followed by subsequent Ostwald ripening. Subtle control over the reaction conditions led to different morphologies (hexagonal plates and nanocubes) and crystal structures (beta-Co(OH)(2)-Co3O4 composite). The unique hollow nanostructure rendered our Co3O4 potentially useful for charge-storage applications. To prove its usefulness, the pseudocapacitive performance of the Co3O4 hollow octahedra as a supercapacitor electrode was evaluated and exhibited a charge storage capacity of 192 F g(-1) with good long-term cyclability.
KeywordHigh-performance Supercapacitor Lithium Storage Properties Carbon-fiber Paper Electrochemical Capacitors Nanowire Arrays Ni Foam Growth Fabrication Spheres Oxyhydroxide
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1039/c3ce41840e
URL查看原文
Indexed BySCI
Language英语
WOS KeywordHIGH-PERFORMANCE SUPERCAPACITOR ; LITHIUM STORAGE PROPERTIES ; CARBON-FIBER PAPER ; ELECTROCHEMICAL CAPACITORS ; NANOWIRE ARRAYS ; NI FOAM ; GROWTH ; FABRICATION ; SPHERES ; OXYHYDROXIDE
WOS Research AreaChemistry ; Crystallography
WOS SubjectChemistry, Multidisciplinary ; Crystallography
WOS IDWOS:000328952000012
Citation statistics
Cited Times:74[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/8147
Collection研究所(批量导入)
Affiliation1.Hanyang Univ, Dept Chem Engn, Ansan 426791, South Korea
2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
3.Hanyang Univ, Dept Chem & Appl Chem, Ansan 426791, South Korea
4.Hanyang Univ, Dept Bionano Engn, Ansan 426791, South Korea
Recommended Citation
GB/T 7714
Cao, Yuebin,Yuan, Fangli,Yao, Mingshui,et al. A new synthetic route to hollow Co3O4 octahedra for supercapacitor applications[J]. CRYSTENGCOMM,2014,16(5):826-833.
APA Cao, Yuebin,Yuan, Fangli,Yao, Mingshui,Bang, Jin Ho,&Lee, Jung-Ho.(2014).A new synthetic route to hollow Co3O4 octahedra for supercapacitor applications.CRYSTENGCOMM,16(5),826-833.
MLA Cao, Yuebin,et al."A new synthetic route to hollow Co3O4 octahedra for supercapacitor applications".CRYSTENGCOMM 16.5(2014):826-833.
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