Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 7, Issue 4, Pages 1468-1478Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8ta07210h
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Funding
- MIST (Ministry of Science and ICT), Korea, under the ICT Consilience Creative Program [IITP-2018-2017-0-01015]
- Basic Science Research Program through the National Research Foundation of Korea - Ministry of Education [NRF-2018R1D1A1B07045703]
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To obtain transition-metal-oxide-based materials with remarkable energy storage and conversion performance, rational design and synthesis of electrodes with abundant active sites is crucial. Herein, we propose an effective strategy for nitrogen doping in NiCo2O4 (NCO) nanowire arrays using NH3 plasma treatment. N-doped NCO contains oxygen vacancies with nitrogen atoms, nickel/cobalt nitrides, and high concentrations of Ni2+ and Co2+ within the structure, leading to high electrical conductivity. As expected, N-doped NCO electrodes exhibited excellent electrochemical performance for supercapacitors and hydrogen evolution reaction (HER) electrocatalysis in KOH electrolyte. This work provides a promising pathway toward developing advanced electrodes.
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