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Issue 7, 2018
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A general potentiodynamic approach for red phosphorus and sulfur nanodot incorporation on reduced graphene oxide sheets: metal-free and binder-free electrodes for supercapacitor and hydrogen evolution activities

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Abstract

A general potentiodynamic strategy, for the first time, was proposed to incorporate red phosphorus (P) and sulfur (S) nanodots on reduced graphene oxide sheets (rGO) on a carbon fabric support. Uniformly embedded nanodots on rGO sheets were visualized using transmission electron microscopy. The as-prepared metal-free and binder-free electrodes can serve for both supercapacitors and the hydrogen evolution reaction. In particular, P nanodot incorporated rGO demonstrates a high specific capacitance of 334.2 F g−1, of which 99.2% is retained after 10 000 repeated charge/discharge cycles. Furthermore, this material delivers a current density of 10 mA cm−2 at an overpotential of −0.44 V versus RHE for the hydrogen evolution reaction in acidic medium.

Graphical abstract: A general potentiodynamic approach for red phosphorus and sulfur nanodot incorporation on reduced graphene oxide sheets: metal-free and binder-free electrodes for supercapacitor and hydrogen evolution activities

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Publication details

The article was received on 28 Dec 2017, accepted on 16 Jan 2018 and first published on 16 Jan 2018


Article type: Paper
DOI: 10.1039/C7TA11342K
Citation: J. Mater. Chem. A, 2018,6, 3141-3150
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    A general potentiodynamic approach for red phosphorus and sulfur nanodot incorporation on reduced graphene oxide sheets: metal-free and binder-free electrodes for supercapacitor and hydrogen evolution activities

    Mohd. Khalid and H. Varela, J. Mater. Chem. A, 2018, 6, 3141
    DOI: 10.1039/C7TA11342K

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