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Electrochemical performances of graphene nanoribbons interlacing hollow NiCo oxide nanocages

Electrochemical performances of graphene nanoribbons interlacing hollow NiCo oxide nanocages A hybrid of graphene nanoribbons (GNRs) interlacing hollow NiCoO2 (G-HNCO) nanocages in a size range of 300~500 nm with rough surface is synthesized by a chemical etching Cu2O templates and followed by GNR interlacing process. The G-HNCO showed high electrochemical performance of oxygen evolution reaction (OER), which exhibited small onset potential of 1.50 V and achieved current densities of 10 mA cm−2 at potentials of 1.62 V. Also, the hybrid delivered high capacitance of 937.8 F g−1 at 1 A g−1 in supercapacitor (SC) tests as well as stable cycling performance in both OER and SC measurements. The approach to synthesize the hybrid is simple and scalable for other graphene nanoribbon-based electrocatalysts. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Nanoparticle Research Springer Journals

Electrochemical performances of graphene nanoribbons interlacing hollow NiCo oxide nanocages

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References (44)

Publisher
Springer Journals
Copyright
Copyright © 2017 by Springer Science+Business Media B.V., part of Springer Nature
Subject
Materials Science; Nanotechnology; Inorganic Chemistry; Characterization and Evaluation of Materials; Physical Chemistry; Optics, Lasers, Photonics, Optical Devices
ISSN
1388-0764
eISSN
1572-896X
DOI
10.1007/s11051-017-4078-1
Publisher site
See Article on Publisher Site

Abstract

A hybrid of graphene nanoribbons (GNRs) interlacing hollow NiCoO2 (G-HNCO) nanocages in a size range of 300~500 nm with rough surface is synthesized by a chemical etching Cu2O templates and followed by GNR interlacing process. The G-HNCO showed high electrochemical performance of oxygen evolution reaction (OER), which exhibited small onset potential of 1.50 V and achieved current densities of 10 mA cm−2 at potentials of 1.62 V. Also, the hybrid delivered high capacitance of 937.8 F g−1 at 1 A g−1 in supercapacitor (SC) tests as well as stable cycling performance in both OER and SC measurements. The approach to synthesize the hybrid is simple and scalable for other graphene nanoribbon-based electrocatalysts.

Journal

Journal of Nanoparticle ResearchSpringer Journals

Published: Nov 30, 2017

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