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

doi:10.1016/j.elecom.2018.09.004

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

Department of Chemical and Biological Engineering

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

18 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 language	English
Pages (from-to)	16-21
Number of pages	6
Journal	Electrochemistry Communications
Volume	96
DOIs	https://doi.org/10.1016/j.elecom.2018.09.004
Publication status	Published - 2018 Nov

Keywords

Atomic layer deposition
Glycerol electrooxidation
Gold
Reaction pathway
Titanium dioxide

ASJC Scopus subject areas

Electrochemistry

Access to Document

10.1016/j.elecom.2018.09.004

Cite this

@article{48d8a86854c84e27bff9692b65590430,

title = "Role of Au-TiO2 interfacial sites in enhancing the electrocatalytic glycerol oxidation performance",

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.",

keywords = "Atomic layer deposition, Glycerol electrooxidation, Gold, Reaction pathway, Titanium dioxide",

author = "Jisu Han and Youngmin Kim and Jackson, {David H.K.} and Jeong, {Kwang Eun} and Chae, {Ho Jeong} and Lee, {Kwan Young} and Kim, {Hyung Ju}",

note = "Funding Information: This work was supported by the KRICT -Techcross Company Joint Research Program ( KK1806-G09 & IKT1806-G09 ), South Korea and by the C1 Gas Refinery Program through the National Research Foundation of Korea ( 2016M3D3A1A01913251 ), South Korea. Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2018",

month = nov,

doi = "10.1016/j.elecom.2018.09.004",

language = "English",

volume = "96",

pages = "16--21",

journal = "Electrochemistry Communications",

issn = "1388-2481",

publisher = "Elsevier Inc.",

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T1 - Role of Au-TiO2 interfacial sites in enhancing the electrocatalytic glycerol oxidation performance

AU - Han, Jisu

AU - Kim, Youngmin

AU - Jackson, David H.K.

AU - Jeong, Kwang Eun

AU - Chae, Ho Jeong

AU - Lee, Kwan Young

AU - Kim, Hyung Ju

N1 - Funding Information: This work was supported by the KRICT -Techcross Company Joint Research Program ( KK1806-G09 & IKT1806-G09 ), South Korea and by the C1 Gas Refinery Program through the National Research Foundation of Korea ( 2016M3D3A1A01913251 ), South Korea. Publisher Copyright: © 2018 Elsevier B.V.

PY - 2018/11

Y1 - 2018/11

N2 - 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.

AB - 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.

KW - Atomic layer deposition

KW - Glycerol electrooxidation

KW - Gold

KW - Reaction pathway

KW - Titanium dioxide

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U2 - 10.1016/j.elecom.2018.09.004

DO - 10.1016/j.elecom.2018.09.004

M3 - Article

AN - SCOPUS:85053206126

SN - 1388-2481

VL - 96

SP - 16

EP - 21

JO - Electrochemistry Communications

JF - Electrochemistry Communications

ER -