Role of Au-TiO2 interfacial sites in enhancing the electrocatalytic glycerol oxidation performance

Jisu Han, Youngmin Kim, David H.K. Jackson, Kwang Eun Jeong, Ho Jeong Chae, Kwan Young Lee, Hyung Ju Kim

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

In this study, an atomically controlled thin TiO2 layer was coated on Au/C by atomic layer deposition (ALD). The resulting TiO2 coated Au/C (ALD(TiO2)-Au/C) was used as a catalyst for electrocatalytic glycerol oxidation in alkaline media. Interactions between Au and TiO2 in the ALD(TiO2)-Au/C catalyst improved the catalytic activity and stability for glycerol oxidation. Additionally, the reaction pathway for glycerol oxidation changes due to the Au-TiO2 interfaces formed by ALD. This performance enhancement of electrocatalytic glycerol oxidation on ALD(TiO2)-Au/C is attributed to the role of TiO2 in facilitating oxidation of the Au surface.

Original languageEnglish
Pages (from-to)16-21
Number of pages6
JournalElectrochemistry Communications
Volume96
DOIs
Publication statusPublished - 2018 Nov 1

Keywords

  • Atomic layer deposition
  • Glycerol electrooxidation
  • Gold
  • Reaction pathway
  • Titanium dioxide

ASJC Scopus subject areas

  • Electrochemistry

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