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Role of Au-TiO2 interfacial sites in enhancing the electrocatalytic glycerol oxidation performance
- Authors
- Han, Jisu; Kim, Youngmin; Jackson, David H. K.; Jeong, Kwang-Eun; Chae, Ho-Jeong; Lee, Kwan-Young; Kim, Hyung Ju
- Issue Date
- 11월-2018
- Publisher
- ELSEVIER SCIENCE INC
- Keywords
- Gold; Titanium dioxide; Atomic layer deposition; Glycerol electrooxidation; Reaction pathway
- Citation
- ELECTROCHEMISTRY COMMUNICATIONS, v.96, pp.16 - 21
- Indexed
- SCIE
SCOPUS
- Journal Title
- ELECTROCHEMISTRY COMMUNICATIONS
- Volume
- 96
- Start Page
- 16
- End Page
- 21
- ISSN
- 1388-2481
- 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.
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