Tailoring the electron density of Pd nanoparticles through electronic metal-support interaction for accelerating electrocatalysis of formic acid

  • Shuai Su
  • , Yi Shi
  • , Yue Zhou
  • , Yue Bo Wang*
  • , Feng Bin Wang
  • , Xing Hua Xia
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

The electronic interaction between metal and supports can regulate the activity of heterogeneous nanomaterials. We designed four supported Pd catalysts (Pd/ZnO, Pd/TiO2, Pd/Al2O3 and Pd/SiO2) for the electrocatalytic activity toward the formic acid oxidation reaction (FAOR). The electrochemical results demonstrate that Pd/ZnO exhibits superior electrocatalytic activity toward FAOR, which can be attributed to the decreased electron density of ZnO-supported Pd nanoparticles, as further confirmed by X-ray photoelectron spectroscopic characterization and CO stripping electrochemical measurement. This study provides an effective method for the design of high-efficiency electrocatalysts, which could be also useful for studying the surface electronics of supported metal-nanoparticle.

Original languageEnglish
Article number106540
JournalElectrochemistry Communications
Volume107
DOIs
StatePublished - Oct 2019
Externally publishedYes

Keywords

  • Electrocatalysis
  • Electron density
  • Electronic metal–support interaction
  • Formic acid oxidation reaction
  • Pd nanoparticles

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