Hollow MO_x-RuO_2 (M = Co, Cu, Fe, Ni, CuNi) nanostructures as highly efficient electrodes for supercapacitors

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	Hollow MO_x-RuO_2 (M = Co, Cu, Fe, Ni, CuNi) nanostructures as highly efficient electrodes for supercapacitors
	Tan Qiangqiang; Wang Pengfei; Liu Hui; Xu Yuxing; Chen Yunfa; Yang Jun
	2016
Source Publication	Science China. Materials
ISSN	2095-8226
Volume	59 Issue:5 Pages:323
Abstract	Engineering the internal structure and chemical composition of nanomaterials in a cost-effective way has been challenging, especially for enhancing their performance for a given application. Herein, we report a general strategy to fabricate hollow nanostructures of ruthenium-based binary or ternary oxides via a galvanic replacement process together with a subsequent thermal treatment. In particular, the as-prepared NiO-RuO_2 hollow nanostructures loaded on carbon nanotubes (hNiO-RuO_2/CNT) with RuO_2 mass ratio at 19.6% for a supercapacitor adopting the KOH electrolyte exhibit high specific capacitances of 740 F g~(–1) at a constant current density of 1 A g~(–1) with good cycle stability. The specific capacitance for hNiO-RuO_2/CNT electrodes maintains 638.4 F g–1 at a current density of 5 A g~(–1). This simple approach may shed some light on the way for making a wide range of metal oxides with tunable nanostructures and compositions for a variety of applications.
Keyword	ruthenium-based oxides hollow nanostructures galvanic replacement reaction supercapacitor specific capacitance
Language	英语
Document Type	期刊论文
Identifier	http://ir.ipe.ac.cn/handle/122111/45000
Collection	中国科学院过程工程研究所
Affiliation	中国科学院过程工程研究所
First Author Affilication	中国科学院过程工程研究所
Recommended Citation GB/T 7714	Tan Qiangqiang,Wang Pengfei,Liu Hui,et al. Hollow MO_x-RuO_2 (M = Co, Cu, Fe, Ni, CuNi) nanostructures as highly efficient electrodes for supercapacitors[J]. Science China. Materials,2016,59(5):323.
APA	Tan Qiangqiang,Wang Pengfei,Liu Hui,Xu Yuxing,Chen Yunfa,&Yang Jun.(2016).Hollow MO_x-RuO_2 (M = Co, Cu, Fe, Ni, CuNi) nanostructures as highly efficient electrodes for supercapacitors.Science China. Materials,59(5),323.
MLA	Tan Qiangqiang,et al."Hollow MO_x-RuO_2 (M = Co, Cu, Fe, Ni, CuNi) nanostructures as highly efficient electrodes for supercapacitors".Science China. Materials 59.5(2016):323.

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