TBU Publications
Repository of TBU Publications

Morphology-controllable synthesis of MnO2 hollow nanospheres and their supercapacitive performance

DSpace Repository

Show simple item record

dc.title Morphology-controllable synthesis of MnO2 hollow nanospheres and their supercapacitive performance en
dc.contributor.author Ma, Jingping
dc.contributor.author Cheng, Qilin
dc.contributor.author Pavlínek, Vladimír
dc.contributor.author Sáha, Petr
dc.contributor.author Li, Chunzhong
dc.relation.ispartof New Journal of Chemistry
dc.identifier.issn 1144-0546 Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued 2013
utb.relation.volume 37
utb.relation.issue 3
dc.citation.spage 722
dc.citation.epage 728
dc.type article
dc.language.iso en
dc.publisher Royal Society of Chemistry (RSC) en
dc.identifier.doi 10.1039/c2nj40880e
dc.relation.uri http://pubs.rsc.org/en/Content/ArticleLanding/2013/NJ/c2nj40880e
dc.description.abstract Uniform MnO2 hollow nanospheres with hierarchical (urchin-like and flower-like) and non-hierarchical structures have been synthesized via a dual-template assisted hydrothermal process. The morphology control of the MnO2 hollow spheres can be easily achieved by altering the mass ratio of Pluronic F-127 to silica spheres. Material characterizations reveal that urchin-like hollow spheres possess the highest BET surface area of 233.4 m(2) g(-1) among the diverse morphologies. A possible formation mechanism for the MnO2 hollow spheres with different morphologies is proposed. The supercapacitive performance of the MnO2 spheres was investigated by cyclic voltammetry and galvanostatic charge-discharge techniques. The urchin-like hollow spheres exhibit the highest specific capacitance of 266.6 F g(-1) within the potential range of 0-1.0 V. The relationship between the specific capacitance and the morphology of the MnO2 hollow spheres is also discussed. The good capacitive behavior and cycling stability of the hierarchical MnO2 hollow spheres highlights the importance of the morphological design and control of materials in practical supercapacitor applications. en
utb.faculty Faculty of Technology
dc.identifier.uri http://hdl.handle.net/10563/1003164
utb.identifier.obdid 43870000
utb.identifier.scopus 2-s2.0-84874079062
utb.identifier.wok 000314973000025
utb.source j-wok
dc.date.accessioned 2013-03-17T11:41:47Z
dc.date.available 2013-03-17T11:41:47Z
utb.contributor.internalauthor Cheng, Qilin
utb.contributor.internalauthor Pavlínek, Vladimír
utb.contributor.internalauthor Sáha, Petr
Find Full text

Files in this item

Show simple item record