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 journalArticleResearchpeer-review

9 Citations (Scopus)

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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