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The green synthesis of ultrafine palladium–phosphorus alloyed nanoparticles anchored on polydopamine functionalized graphene used as an excellent electrocatalyst for ethanol oxidation

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Abstract

A new catalyst, consisting of ultrafine Pd–P alloyed nanoparticles (NPs) anchored on polydopamine functionalized graphene (Pd–P/PDA-GS), was fabricated by a green, facile and surfactant free method. The mussel-inspired molecular dopamine self-assembled into PDA on the surface of graphene nanosheets (GSs) at room temperature to structure the carrier. The ultrafine Pd–P alloyed NPs were anchored in situ on the PDA-GS with good distribution at room temperature. Due to the synergistic action of PDA, P and Pd, the new catalyst demonstrates enhanced electrocatalytic performance, accelerated kinetics and enhanced stability for ethanol electrocatalytic oxidation reaction (EOR) compared with other tested catalysts. Moreover, the optimal molar ratio of Pd to P precursors (K2PdCl4 aqueous solution and NaH2PO2 solution) is approximately 3 : 1 according to the study of the ratio of Pd to P precursors.

Graphical abstract: The green synthesis of ultrafine palladium–phosphorus alloyed nanoparticles anchored on polydopamine functionalized graphene used as an excellent electrocatalyst for ethanol oxidation

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Publication details

The article was received on 10 Jul 2017, accepted on 25 Sep 2017 and first published on 26 Sep 2017


Article type: Research Article
DOI: 10.1039/C7QI00394C
Citation: Inorg. Chem. Front., 2017, Advance Article
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    The green synthesis of ultrafine palladium–phosphorus alloyed nanoparticles anchored on polydopamine functionalized graphene used as an excellent electrocatalyst for ethanol oxidation

    H. Yang, H. Zou, M. Chen, S. Li, J. Jin and J. Ma, Inorg. Chem. Front., 2017, Advance Article , DOI: 10.1039/C7QI00394C

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