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Issue 11, 2019
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Converting benzene into γ-graphyne and its enhanced electrochemical oxygen evolution performance

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Abstract

We report the first use of benzene as a precursor in mechanosynthesis of γ-graphyne. Through the solid–liquid interfacial reaction with CaC2, gram-scale γ-graphyne can be obtained. EDX, Raman, XPS spectra and SAED patterns confirmed the composition and structure of γ-graphyne. Two-dimensional morphology, with a perimeter about 400 nm and thickness around 0.7 nm, was observed from TEM and AFM images for the as-prepared samples. γ-Graphyne/Ni foam electrodes were constructed and a stable and efficient oxygen evolution reaction performance was demonstrated, with a low overpotential of 290 mV at 100 mA cm−2. This work provides an energy-efficient, low-environmental-impact and mechanochemical preparation of γ-graphyne which paves the way for its future research and applications.

Graphical abstract: Converting benzene into γ-graphyne and its enhanced electrochemical oxygen evolution performance

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Publication details

The article was received on 26 Oct 2018, accepted on 15 Dec 2018 and first published on 15 Dec 2018


Article type: Paper
DOI: 10.1039/C8TA10317H
Citation: J. Mater. Chem. A, 2019,7, 5981-5990

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    Converting benzene into γ-graphyne and its enhanced electrochemical oxygen evolution performance

    Q. Li, C. Yang, L. Wu, H. Wang and X. Cui, J. Mater. Chem. A, 2019, 7, 5981
    DOI: 10.1039/C8TA10317H

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