@inproceedings{8fa82714ef9a48aaa5f65158999e4b00,
title = "Fabrication of homogeneously dispersed nanoneedle manganese dioxide/graphene composite for high-performance electrode use in supercapacitor",
abstract = "Two types of graphene/MnO2 composites were synthesized by different reaction procedures. R-GO/MnO2 was synthesized as follows: first, nanoneedle MnO2 was formed on the GO sheets using various functional groups (GO/MnO2). In the second stage, GO/MnO2 was reduced to graphene/MnO2 (R-GO/MnO2) via the dipping method. rGO/MnO2 was synthesized using a different reaction order: first, graphene oxide was reduced to graphene and nanoneedle MnO2 was formed on graphene sheets. Characterization indicated that the nanoneedle MnO2 structures in the R-GO/MnO2 composite were homogeneously dispersed on graphene sheets, whereas MnO2 in the rGO/MnO2 composite formed aggregates due to absence of functional groups. The R-GO/MnO2 electrode exhibited a specific capacitance as high as 327.5 Fg-1 at 10 mVs-1, which was higher than that of the rGO/MnO2 electrode (229.9 Fg-1). It is anticipated that the formation of nanoneedle MnO2 on the GO surface following the reduction procedure could be a promising fabrication method for supercapacitor electrodes.",
keywords = "Grapheme/MnO, Hydrazine hydrate, Nanoneedle, Reduction, Supercapacitor",
author = "Kim, {Myeong Jin} and Kiho Kim and Yoo, {Myeong Yeol} and Kim, {Joo Heon}",
year = "2014",
doi = "10.4028/www.scientific.net/AMR.894.8",
language = "English",
isbn = "9783038350323",
series = "Advanced Materials Research",
pages = "8--12",
booktitle = "Advanced Materials Research IV",
note = "2014 4th International Conference on Advanced Materials Research, ICAMR 2014 ; Conference date: 22-01-2014 Through 23-01-2014",
}