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Ruthenium oxide-based nanocomposites with high specific surface area and improved capacitance as a supercapacitor
Alternative TitleRSC Adv.
Wang, Pengfei1,2; Liu, Hui1; Tan, Qiangqiang1; Yang, Jun1
2014
Source PublicationRSC ADVANCES
ISSN2046-2069
Volume4Issue:81Pages:42839-42845
AbstractA solvothermal strategy and a mutual oxidation-reduction approach are used to fabricate ruthenium oxide (RuO2)-based nanocomposites, including RuO2 and RuO2-gold (Au) nanoparticles supported on commercial carbon supports (RuO2/C and RuO2-Au/C nanocomposites). The novelty of this work lies in the synthetic approaches, which are based on a thermal decomposition of metal complexes formed by RuCl3 and dodecylamine at room temperature (for RuO2/C) and the mutual oxidation-reduction phenomenon between RuCl3 and HAuCl4 at elevated temperature (for RuO2-Au/C) in the presence of carbon supports. In particular, the as-prepared RuO2/C and RuO2-Au/C nanocomposites for supercapacitors adopting the H2SO4 electrolyte exhibit high specific capacitances of 537.7 F g(-1) and 558.2 F g(-1), respectively, at a current density of 50 mA g(-1). The specific capacitance reaches 350.1 F g(-1) for the RuO2/C nanocomposites and 478.5 F g(-1) for RuO2-Au/C nanocomposites at a current density of 200 mA g(-1) with good cycling stability. The comparison of the electrochemical measurements of RuO2/C and RuO2-Au/C nanocomposites demonstrates that the presence of Au in the nanocomposites is favorable for the enhancement in capacitive behavior of RuO2.; A solvothermal strategy and a mutual oxidation-reduction approach are used to fabricate ruthenium oxide (RuO2)-based nanocomposites, including RuO2 and RuO2-gold (Au) nanoparticles supported on commercial carbon supports (RuO2/C and RuO2-Au/C nanocomposites). The novelty of this work lies in the synthetic approaches, which are based on a thermal decomposition of metal complexes formed by RuCl3 and dodecylamine at room temperature (for RuO2/C) and the mutual oxidation-reduction phenomenon between RuCl3 and HAuCl4 at elevated temperature (for RuO2-Au/C) in the presence of carbon supports. In particular, the as-prepared RuO2/C and RuO2-Au/C nanocomposites for supercapacitors adopting the H2SO4 electrolyte exhibit high specific capacitances of 537.7 F g(-1) and 558.2 F g(-1), respectively, at a current density of 50 mA g(-1). The specific capacitance reaches 350.1 F g(-1) for the RuO2/C nanocomposites and 478.5 F g(-1) for RuO2-Au/C nanocomposites at a current density of 200 mA g(-1) with good cycling stability. The comparison of the electrochemical measurements of RuO2/C and RuO2-Au/C nanocomposites demonstrates that the presence of Au in the nanocomposites is favorable for the enhancement in capacitive behavior of RuO2.
KeywordElectrochemical Capacitor Electrode Materials Optical-properties General-approach Nanoparticles Nanocrystals Nanostructures Growth
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1039/c4ra07044e
URL查看原文
Indexed BySCI
Language英语
WOS KeywordELECTROCHEMICAL CAPACITOR ; ELECTRODE MATERIALS ; OPTICAL-PROPERTIES ; GENERAL-APPROACH ; NANOPARTICLES ; NANOCRYSTALS ; NANOSTRUCTURES ; GROWTH
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000344525500010
Citation statistics
Cited Times:20[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/11845
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Wang, Pengfei,Liu, Hui,Tan, Qiangqiang,et al. Ruthenium oxide-based nanocomposites with high specific surface area and improved capacitance as a supercapacitor[J]. RSC ADVANCES,2014,4(81):42839-42845.
APA Wang, Pengfei,Liu, Hui,Tan, Qiangqiang,&Yang, Jun.(2014).Ruthenium oxide-based nanocomposites with high specific surface area and improved capacitance as a supercapacitor.RSC ADVANCES,4(81),42839-42845.
MLA Wang, Pengfei,et al."Ruthenium oxide-based nanocomposites with high specific surface area and improved capacitance as a supercapacitor".RSC ADVANCES 4.81(2014):42839-42845.
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