Issue 2, 2013

High electrochemical performance based on ultrathin porous CuO nanobelts grown on Cu substrate as integrated electrode

Abstract

A facile and low-cost approach has been developed to fabricate porous CuO nanobelts directly grown on a Cu substrate. The as-prepared CuO samples can be directly used as integrated electrodes for lithium-ion batteries and pseudo-supercapacitors without the addition of other ancillary materials such as carbon black or a binder to enhance electrode conductivity and cycling stability. The unique nanostructural features endow them with excellent electrochemical performance as demonstrated by high capacities of 640 mA h g−1 after 100 cycles at 0.2 C rate and an excellent specific capacitance of 340 F g−1, which corresponds to the energy density of 45 W h kg−1. The cyclability of the electrode demonstrates only a 10–15% loss in capacitance over 5000 cycles.

Graphical abstract: High electrochemical performance based on ultrathin porous CuO nanobelts grown on Cu substrate as integrated electrode

Supplementary files

Article information

Article type
Paper
Submitted
04 Oct 2012
Accepted
02 Nov 2012
First published
05 Nov 2012

Phys. Chem. Chem. Phys., 2013,15, 521-525

High electrochemical performance based on ultrathin porous CuO nanobelts grown on Cu substrate as integrated electrode

X. Zhang, L. Yu, L. Wang, R. Ji, G. Wang and B. Geng, Phys. Chem. Chem. Phys., 2013, 15, 521 DOI: 10.1039/C2CP43501B

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