Hierarchical porous CuO nanostructures with tunable properties for high performance supercapacitors

Yang Lu, Hailong Yan, Kangwen Qiu, Jinbing Cheng, Weixiao Wang, Xianming Liu, Chengchun Tang, Jang Kyo Kim, Yongsong Luo

Research output: Contribution to journalArticlepeer-review

50 Scopus citations

Abstract

We report a novel, low-cost strategy to synthesize copper oxide (CuO) nanostructures as high-performance supercapacitor electrodes using an alkaline solution oxidation method. The structure, morphological features, surface area and pore size distribution of the products are tuned using different types of surfactants. The CuO electrode obtained from sodium dodecyl sulfate (SDS) presents the best electrochemical performance due to the synergies arising from the large surface area and pore volume created by the ultrathin nanoleaves constituting the flower-shape nanostructure. The electrode delivers a remarkable specific capacitance of 520 F g-1 at 1 A g-1 and a high rate capacitance of 405 F g-1 at 60 A g-1 with more than 95% Coulombic efficiency after 3500 cycles.

Original languageBritish English
Pages (from-to)10773-10781
Number of pages9
JournalRSC Advances
Volume5
Issue number14
DOIs
StatePublished - 2015

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