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Carbon/carbon nanotube-supported RuO2 nanoparticles with a hollow interior as excellent electrode materials for supercapacitors
Wang, Pengfei1,2; Xu, Yuxing1; Liu, Hui1; Chen, Yunfa1; Yang, Jun1; Tan, Qiangqiang1
2015-07-01
Source PublicationNANO ENERGY
ISSN2211-2855
Volume15Issue:JULYPages:116-124
AbstractTailoring the internal structure of nanomaterials is an effective way to enhance their performance for a given application. Herein, a core-shell templated approach is demonstrated to fabricate carbon or carbon nanotube-supported hollow structured RuO2 nanoparticles as excellent electrode materials for supercapacitors. This strategy involves the synthesis of core shell Ag-Ru nanoparticles, and subsequent loading on carbon or carbon nanotube support. Then the Ag component is removed from the core region using saturated aqueous Na2S solution to generate hollow structured Ru nanoparticles on carbon or carbon nanotube support, which are then converted into RuO2 with intact hollow structure by thermal treatment in air. In particular, the as-prepared carbon or carbon nanotube-supported hollow RuO2 nanoparticles for a supercapacitor adopting the H2SO4 electrolyte exhibit high specific capacitances of 817.1 and 819.9 F g(-1), respectively, at a current density of 0.2 A g(-1). The specific capacitances for hRuO(2)/C, hRuO(2)/CNT nanocomposites were maintained at 805.8 and 770.2 F g(-1), respectively, at current density of 0.5 A g(-1) with good cycle stability. The comparison in electrochemical performance between the hollow structured RuO2 and their coreshell counterparts for a capacitor manifests that the preparation of RuOz nanoparticles with hollow interiors is favorable for the enhancement in their capacitive behavior. (C) 2015 Elsevier Ltd. All rights reserved.
KeywordRuthenium Oxide Hollow Core Shell Nanoparticle Supercapacitor Specific Capacitance
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1016/j.nanoen.2015.04.006
Indexed BySCI
Language英语
WOS KeywordHYDROUS RUTHENIUM OXIDE ; ELECTROCHEMICAL CAPACITORS ; RATE PERFORMANCE ; FACILE SYNTHESIS ; FILM
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
Funding Organization100 Talents Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China(21173226 ; Knowledge Innovation Program of the Chinese Academy of Sciences(KGCX2-YW-341) ; 21376247)
WOS IDWOS:000364578900012
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/19774
Collection多相复杂系统国家重点实验室
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,Xu, Yuxing,Liu, Hui,et al. Carbon/carbon nanotube-supported RuO2 nanoparticles with a hollow interior as excellent electrode materials for supercapacitors[J]. NANO ENERGY,2015,15(JULY):116-124.
APA Wang, Pengfei,Xu, Yuxing,Liu, Hui,Chen, Yunfa,Yang, Jun,&Tan, Qiangqiang.(2015).Carbon/carbon nanotube-supported RuO2 nanoparticles with a hollow interior as excellent electrode materials for supercapacitors.NANO ENERGY,15(JULY),116-124.
MLA Wang, Pengfei,et al."Carbon/carbon nanotube-supported RuO2 nanoparticles with a hollow interior as excellent electrode materials for supercapacitors".NANO ENERGY 15.JULY(2015):116-124.
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