Ruthenium oxide-based nanocomposites with high specific surface area and improved capacitance as a supercapacitor

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	Ruthenium oxide-based nanocomposites with high specific surface area and improved capacitance as a supercapacitor
	Wang, Pengfei 1,2; Liu, Hui 1; Tan, Qiangqiang 1; Yang, Jun 1
刊名	RSC ADVANCES
	2014
卷号	4 期号:81 页码:42839-42845
关键词	ELECTROCHEMICAL CAPACITOR ELECTRODE MATERIALS OPTICAL-PROPERTIES GENERAL-APPROACH NANOPARTICLES NANOCRYSTALS NANOSTRUCTURES GROWTH
ISSN号	2046-2069
其他题名	RSC Adv.
中文摘要	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.
英文摘要	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.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Chemistry, Multidisciplinary
研究领域[WOS]	Chemistry
关键词[WOS]	ELECTROCHEMICAL CAPACITOR ; ELECTRODE MATERIALS ; OPTICAL-PROPERTIES ; GENERAL-APPROACH ; NANOPARTICLES ; NANOCRYSTALS ; NANOSTRUCTURES ; GROWTH
收录类别	SCI
原文出处	://WOS:000344525500010
语种	英语
WOS记录号	WOS:000344525500010
公开日期	2015-04-01
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/11845]
专题	过程工程研究所_研究所（批量导入）
作者单位	1.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
推荐引用方式 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.