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Surfactant-Free Synthesis of Graphene-Supported PdCu Nanocrystals with High Alloying Degree as Highly Active Catalyst for Formic Acid Electrooxidation

Shuni Li, Yanan Zhai, Xinyi Zhang, Douglas R. MacFarlane

Research output: Contribution to journal › Article › Research › peer-review

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Abstract

In recent years, graphene/metal nanocrystal hybrids have attracted tremendous attention in catalysis and electrocatalysis. This work demonstrates a surfactant-free coprecipitation/coreduction method to synthesize graphene-supported nanocrystalline PdCu (PdCu/GN) hybrids with high alloying degree. The strong interaction between graphene oxide and metal hydrates results in uniform precipitation on the graphene oxide surface, which plays a critical role in excellent dispersion and high alloying degree of PdCu nanocrystals. Cyclic voltammetry and chronoamperometry measurements show that nanocrystalline PdCu/GN hybrids have higher activity and durability than commercial Pd/C catalyst for the formic acid oxidation reaction.

Original languageEnglish
Article number1700227
Number of pages7
JournalAdvanced Materials Interfaces
Volume4
Issue number14
DOIs
Publication statusPublished - 21 Jul 2017

Keywords

  • alloying degree
  • catalytic activity
  • formic acid oxidation
  • hydrolysis
  • PdCu alloy

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  • ARC Centre of Excellence for Electromaterials Science

    Wallace, G. G. (Primary Chief Investigator (PCI)), Forsyth, M. (Chief Investigator (CI)), Macfarlane, D. (Chief Investigator (CI)), Officer, D. (Chief Investigator (CI)), Cook, M. J. (Chief Investigator (CI)), Dodds, S. (Chief Investigator (CI)), Spinks, G. (Chief Investigator (CI)), Alici, G. (Chief Investigator (CI)), Moulton, S. E. (Chief Investigator (CI)), in het Panhuis, M. (Chief Investigator (CI)), Kapsa, R. M. I. (Chief Investigator (CI)), Higgins, M. (Chief Investigator (CI)), Mozer, A. (Chief Investigator (CI)), Crook, J. (Chief Investigator (CI)), Innis, P. (Chief Investigator (CI)), Coote, M. L. (Chief Investigator (CI)), Wang, X. (Chief Investigator (CI)), Howlett, P. (Chief Investigator (CI)), Pringle, J. (Chief Investigator (CI)), Hancock, L. (Chief Investigator (CI)), Paull, B. (Chief Investigator (CI)), Sparrow, R. (Chief Investigator (CI)), Zhang, J. (Chief Investigator (CI)), Spiccia, L. (Chief Investigator (CI)), Diamond, D. (Partner Investigator (PI)), Guldi, D. (Partner Investigator (PI)), Kim, S. J. (Partner Investigator (PI)), Unwin, P. (Partner Investigator (PI)) & Watanabe, M. (Partner Investigator (PI))

    ARC - Australian Research Council

    30/06/14 → 30/06/21

    Project: Research

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