Effect of atomic-layer-deposited TiO2 on carbon-supported Ni catalysts for electrocatalytic glycerol oxidation in alkaline media

Jisu Han; Youngmin Kim; Hyun Woo Kim; David H.K. Jackson; Daewon Lee; Hyunju Chang; Ho Jeong Chae; Kwan Young Lee; Hyung Ju Kim

doi:10.1016/j.elecom.2017.08.023

Effect of atomic-layer-deposited TiO₂ on carbon-supported Ni catalysts for electrocatalytic glycerol oxidation in alkaline media

Jisu Han, Youngmin Kim, Hyun Woo Kim, David H.K. Jackson, Daewon Lee, Hyunju Chang, Ho Jeong Chae, Kwan Young Lee, Hyung Ju Kim

Department of Chemical and Biological Engineering

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

28 Citations (Scopus)

Abstract

Thin TiO₂ layers were deposited onto a carbon-supported Ni catalyst (Ni/C) through atomic layer deposition (ALD) and the resulting TiO₂-coated Ni/C (ALD(TiO₂)-Ni/C) was utilized for electrochemical glycerol oxidation in alkaline media. X-ray photoelectron spectroscopy analysis demonstrated that the Ni surface phase of ALD(TiO₂)-Ni/C mainly consisted of Ni(OH)₂ while that of uncoated Ni/C was a mixed phase of NiO and Ni(OH)₂. The ALD(TiO₂)-Ni/C exhibited electrocatalytic activity at least 2.4 times higher than that of Ni/C. Density functional theory calculations were used to investigate how the modified Ni surface with the TiO₂ coating affects the adsorption/desorption of glycerol.

Original language	English
Pages (from-to)	46-50
Number of pages	5
Journal	Electrochemistry Communications
Volume	83
DOIs	https://doi.org/10.1016/j.elecom.2017.08.023
Publication status	Published - 2017 Oct

Keywords

Alkaline electrolyte
Atomic layer deposition
Electrocatalytic oxidation
Glycerol
Nickel
Titanium dioxide

ASJC Scopus subject areas

Electrochemistry

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10.1016/j.elecom.2017.08.023

Cite this

@article{3f7ccb7cdc434a9a9258d5d19bdc2c53,

title = "Effect of atomic-layer-deposited TiO2 on carbon-supported Ni catalysts for electrocatalytic glycerol oxidation in alkaline media",

abstract = "Thin TiO2 layers were deposited onto a carbon-supported Ni catalyst (Ni/C) through atomic layer deposition (ALD) and the resulting TiO2-coated Ni/C (ALD(TiO2)-Ni/C) was utilized for electrochemical glycerol oxidation in alkaline media. X-ray photoelectron spectroscopy analysis demonstrated that the Ni surface phase of ALD(TiO2)-Ni/C mainly consisted of Ni(OH)2 while that of uncoated Ni/C was a mixed phase of NiO and Ni(OH)2. The ALD(TiO2)-Ni/C exhibited electrocatalytic activity at least 2.4 times higher than that of Ni/C. Density functional theory calculations were used to investigate how the modified Ni surface with the TiO2 coating affects the adsorption/desorption of glycerol.",

keywords = "Alkaline electrolyte, Atomic layer deposition, Electrocatalytic oxidation, Glycerol, Nickel, Titanium dioxide",

author = "Jisu Han and Youngmin Kim and Kim, {Hyun Woo} and Jackson, {David H.K.} and Daewon Lee and Hyunju Chang and Chae, {Ho Jeong} and Lee, {Kwan Young} and Kim, {Hyung Ju}",

note = "Funding Information: This work was supported by the KRICT-Techcross joint research program ( KK1706-G09 & IKT1706-G09 ) funded by the Korea Research Institute of Chemical Technology & Techcross Company and by the C1 Gas Refinery Program through a grant ( 2016M3D3A1A01913251 ) from the NRF funded by the Ministry of Science, ICT & Future Planning . Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

year = "2017",

month = oct,

doi = "10.1016/j.elecom.2017.08.023",

language = "English",

volume = "83",

pages = "46--50",

journal = "Electrochemistry Communications",

issn = "1388-2481",

publisher = "Elsevier Inc.",

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TY - JOUR

T1 - Effect of atomic-layer-deposited TiO2 on carbon-supported Ni catalysts for electrocatalytic glycerol oxidation in alkaline media

AU - Han, Jisu

AU - Kim, Youngmin

AU - Kim, Hyun Woo

AU - Jackson, David H.K.

AU - Lee, Daewon

AU - Chang, Hyunju

AU - Chae, Ho Jeong

AU - Lee, Kwan Young

AU - Kim, Hyung Ju

N1 - Funding Information: This work was supported by the KRICT-Techcross joint research program ( KK1706-G09 & IKT1706-G09 ) funded by the Korea Research Institute of Chemical Technology & Techcross Company and by the C1 Gas Refinery Program through a grant ( 2016M3D3A1A01913251 ) from the NRF funded by the Ministry of Science, ICT & Future Planning . Publisher Copyright: © 2017 Elsevier B.V.

PY - 2017/10

Y1 - 2017/10

N2 - Thin TiO2 layers were deposited onto a carbon-supported Ni catalyst (Ni/C) through atomic layer deposition (ALD) and the resulting TiO2-coated Ni/C (ALD(TiO2)-Ni/C) was utilized for electrochemical glycerol oxidation in alkaline media. X-ray photoelectron spectroscopy analysis demonstrated that the Ni surface phase of ALD(TiO2)-Ni/C mainly consisted of Ni(OH)2 while that of uncoated Ni/C was a mixed phase of NiO and Ni(OH)2. The ALD(TiO2)-Ni/C exhibited electrocatalytic activity at least 2.4 times higher than that of Ni/C. Density functional theory calculations were used to investigate how the modified Ni surface with the TiO2 coating affects the adsorption/desorption of glycerol.

AB - Thin TiO2 layers were deposited onto a carbon-supported Ni catalyst (Ni/C) through atomic layer deposition (ALD) and the resulting TiO2-coated Ni/C (ALD(TiO2)-Ni/C) was utilized for electrochemical glycerol oxidation in alkaline media. X-ray photoelectron spectroscopy analysis demonstrated that the Ni surface phase of ALD(TiO2)-Ni/C mainly consisted of Ni(OH)2 while that of uncoated Ni/C was a mixed phase of NiO and Ni(OH)2. The ALD(TiO2)-Ni/C exhibited electrocatalytic activity at least 2.4 times higher than that of Ni/C. Density functional theory calculations were used to investigate how the modified Ni surface with the TiO2 coating affects the adsorption/desorption of glycerol.

KW - Alkaline electrolyte

KW - Atomic layer deposition

KW - Electrocatalytic oxidation

KW - Glycerol

KW - Nickel

KW - Titanium dioxide

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U2 - 10.1016/j.elecom.2017.08.023

DO - 10.1016/j.elecom.2017.08.023

M3 - Article

AN - SCOPUS:85028721359

SN - 1388-2481

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JF - Electrochemistry Communications

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