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Issue 43, 2018
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Microwave-assisted preparation of Ag/Ag2S carbon hybrid structures from pig bristles as efficient HER catalysts

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Abstract

Ag/Ag2S hybrid structures have recently attracted significant interest due to their high chemical and thermal stability, in addition to their unique optical and electrical properties. However, their standard synthetic protocols have important drawbacks including long term and harsh reaction conditions and the utilization of highly toxic sulfur precursors. Herein, an innovative, simple one-pot green approach for the synthesis of the Ag/Ag2S carbon hybrid structures is reported. The procedure involves a one-step microwave-assisted method using ethylene glycol as a solvent and reducing agent, pig bristles as a sulphur and carbon source and silver nitrate as a metal precursor. Different amounts of silver nitrate were employed in order to investigate the synthetic mechanism for the formation of zerovalent silver over silver sulphide nanoparticles, producing three different samples. The materials were characterized by XRD, SEM, EDX, N2 physisorption and XPS spectroscopy. Aiming to prove the efficiency of the as-synthesized compounds, their electrocatalytic activities were explored in the hydrogen evolution reaction (HER) using linear sweep voltammetry.

Graphical abstract: Microwave-assisted preparation of Ag/Ag2S carbon hybrid structures from pig bristles as efficient HER catalysts

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Publication details

The article was received on 04 Jul 2018, accepted on 08 Oct 2018 and first published on 08 Oct 2018


Article type: Paper
DOI: 10.1039/C8TA06417B
Citation: J. Mater. Chem. A, 2018,6, 21516-21523
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    Microwave-assisted preparation of Ag/Ag2S carbon hybrid structures from pig bristles as efficient HER catalysts

    C. M. Cova, A. Zuliani, A. R. Puente Santiago, A. Caballero, M. J. Muñoz-Batista and R. Luque, J. Mater. Chem. A, 2018, 6, 21516
    DOI: 10.1039/C8TA06417B

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