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Co2P Quantum Dot Embedded N, P Dual-doped Carbon Self-supported Electrodes with Flexible and Binder-free Properties for Efficient Hydrogen Evolution Reaction

Abstract

Transition metal phosphides (TMPs) are considered to be superb catalysts for water splitting. In this work, we introduce an efficient strategy to fabricate dicobalt phosphide (Co2P) quantum dots embedded in N, P dual-doped carbon (Co2P@NPC) on carbon cloth (Co2P@NPC/CC) by in situ carbonization of cobalt ion induced phytic acid (PA) and polyaniline (PANI) macromolecules precursors. As a highly efficient self-supported electrode, it has a low onset overpotential (74 mV at 1 mA cm−2) approaching that of the commercial Pt/C catalyst for hydrogen evolution reaction (HER) in acidic media. Meanwhile, it also shows very low overpotentials of only 116 and 129 mV at 10 mA cm-2 with robust electrochemical and mechanical stability in both acidic and alkaline media, respectively.

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Publication details

The article was received on 02 Nov 2017, accepted on 24 Dec 2017 and first published on 26 Dec 2017


Article type: Paper
DOI: 10.1039/C7NR08148K
Citation: Nanoscale, 2017, Accepted Manuscript
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    Co2P Quantum Dot Embedded N, P Dual-doped Carbon Self-supported Electrodes with Flexible and Binder-free Properties for Efficient Hydrogen Evolution Reaction

    C. Zhang, Z. Pu, A. I. Saana, Y. Zhao, J. Zhu, Y. Tang and S. Mu, Nanoscale, 2017, Accepted Manuscript , DOI: 10.1039/C7NR08148K

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