Enhanced catalytic performance and changed reaction chemistry for electrochemical glycerol oxidation by atomic-layer-deposited Pt-nanoparticle catalysts

Jisu Han; Youngmin Kim; David H.K. Jackson; Hyunju Chang; Hyun Woo Kim; Jechan Lee; Jeong Rang Kim; Yuseong Noh; Won Bae Kim; Kwan Young Lee; Hyung Ju Kim

doi:10.1016/j.apcatb.2020.119037

Enhanced catalytic performance and changed reaction chemistry for electrochemical glycerol oxidation by atomic-layer-deposited Pt-nanoparticle catalysts

Jisu Han
, Youngmin Kim
, David H.K. Jackson
, Hyunju Chang
, Hyun Woo Kim
, Jechan Lee
, Jeong Rang Kim
, Yuseong Noh
, Won Bae Kim
, Kwan Young Lee
, Hyung Ju Kim^*

^*Corresponding author for this work

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

40 Citations (Scopus)

Abstract

Atomically controlled thin TiO₂ layers were coated onto a carbon-supported Pt nanoparticle (Pt/C) surface using an atomic layer deposition (ALD) technique. Then, the resulting TiO₂ coated Pt/C (ALD(TiO₂)-Pt/C) was heat-treated at 150 °C under N₂ atmosphere. The heat-treated ALD(TiO₂)-Pt/C (ALD(TiO₂)-Pt/C(150 H T)) catalyst demonstrated improved electrocatalytic glycerol oxidation reaction (GOR) activity with a turnover frequency (TOF) 3-times higher than for uncoated Pt/C catalyst. Interestingly, the ALD(TiO₂)-Pt/C(150 H T) catalyst maintained its catalytic GOR performance after a cyclic voltammetry (CV) stability test of 1200 cycles, preventing Pt sintering due to strong Pt-TiO₂ interaction. The reaction chemistry for GOR on the ALD(TiO₂)-Pt/C(150 H T) catalyst also changed due to the newly created Pt-TiO₂ interfaces, producing more oxidized chemicals such as glyceric acid and glycolic acid. The enhanced GOR performance is related to the formation of new Pt-O-Ti bonds and to change in the physicochemical properties of the Pt by interaction between the Pt nanoparticles and ALD-coated TiO₂.

Original language	English
Article number	119037
Journal	Applied Catalysis B: Environmental
Volume	273
DOIs	https://doi.org/10.1016/j.apcatb.2020.119037
Publication status	Published - 2020 Sept 15

Bibliographical note

Publisher Copyright:
© 2020 Elsevier B.V.

Keywords

Atomic layer deposition
Electrocatalytic oxidations
Glycerol
Platinum nanoparticle
Titanium dioxide

ASJC Scopus subject areas

Catalysis
General Environmental Science
Process Chemistry and Technology

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10.1016/j.apcatb.2020.119037

Cite this

Han, J., Kim, Y., Jackson, D. H. K., Chang, H., Kim, H. W., Lee, J., Kim, J. R., Noh, Y., Kim, W. B., Lee, K. Y., & Kim, H. J. (2020). Enhanced catalytic performance and changed reaction chemistry for electrochemical glycerol oxidation by atomic-layer-deposited Pt-nanoparticle catalysts. Applied Catalysis B: Environmental, 273, Article 119037. https://doi.org/10.1016/j.apcatb.2020.119037

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title = "Enhanced catalytic performance and changed reaction chemistry for electrochemical glycerol oxidation by atomic-layer-deposited Pt-nanoparticle catalysts",

abstract = "Atomically controlled thin TiO2 layers were coated onto a carbon-supported Pt nanoparticle (Pt/C) surface using an atomic layer deposition (ALD) technique. Then, the resulting TiO2 coated Pt/C (ALD(TiO2)-Pt/C) was heat-treated at 150 °C under N2 atmosphere. The heat-treated ALD(TiO2)-Pt/C (ALD(TiO2)-Pt/C(150 H T)) catalyst demonstrated improved electrocatalytic glycerol oxidation reaction (GOR) activity with a turnover frequency (TOF) 3-times higher than for uncoated Pt/C catalyst. Interestingly, the ALD(TiO2)-Pt/C(150 H T) catalyst maintained its catalytic GOR performance after a cyclic voltammetry (CV) stability test of 1200 cycles, preventing Pt sintering due to strong Pt-TiO2 interaction. The reaction chemistry for GOR on the ALD(TiO2)-Pt/C(150 H T) catalyst also changed due to the newly created Pt-TiO2 interfaces, producing more oxidized chemicals such as glyceric acid and glycolic acid. The enhanced GOR performance is related to the formation of new Pt-O-Ti bonds and to change in the physicochemical properties of the Pt by interaction between the Pt nanoparticles and ALD-coated TiO2.",

keywords = "Atomic layer deposition, Electrocatalytic oxidations, Glycerol, Platinum nanoparticle, Titanium dioxide",

author = "Jisu Han and Youngmin Kim and Jackson, \{David H.K.\} and Hyunju Chang and Kim, \{Hyun Woo\} and Jechan Lee and Kim, \{Jeong Rang\} and Yuseong Noh and Kim, \{Won Bae\} and Lee, \{Kwan Young\} and Kim, \{Hyung Ju\}",

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year = "2020",

month = sep,

day = "15",

doi = "10.1016/j.apcatb.2020.119037",

language = "English",

volume = "273",

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T1 - Enhanced catalytic performance and changed reaction chemistry for electrochemical glycerol oxidation by atomic-layer-deposited Pt-nanoparticle catalysts

AU - Han, Jisu

AU - Kim, Youngmin

AU - Jackson, David H.K.

AU - Chang, Hyunju

AU - Kim, Hyun Woo

AU - Lee, Jechan

AU - Kim, Jeong Rang

AU - Noh, Yuseong

AU - Kim, Won Bae

AU - Lee, Kwan Young

AU - Kim, Hyung Ju

PY - 2020/9/15

Y1 - 2020/9/15

N2 - Atomically controlled thin TiO2 layers were coated onto a carbon-supported Pt nanoparticle (Pt/C) surface using an atomic layer deposition (ALD) technique. Then, the resulting TiO2 coated Pt/C (ALD(TiO2)-Pt/C) was heat-treated at 150 °C under N2 atmosphere. The heat-treated ALD(TiO2)-Pt/C (ALD(TiO2)-Pt/C(150 H T)) catalyst demonstrated improved electrocatalytic glycerol oxidation reaction (GOR) activity with a turnover frequency (TOF) 3-times higher than for uncoated Pt/C catalyst. Interestingly, the ALD(TiO2)-Pt/C(150 H T) catalyst maintained its catalytic GOR performance after a cyclic voltammetry (CV) stability test of 1200 cycles, preventing Pt sintering due to strong Pt-TiO2 interaction. The reaction chemistry for GOR on the ALD(TiO2)-Pt/C(150 H T) catalyst also changed due to the newly created Pt-TiO2 interfaces, producing more oxidized chemicals such as glyceric acid and glycolic acid. The enhanced GOR performance is related to the formation of new Pt-O-Ti bonds and to change in the physicochemical properties of the Pt by interaction between the Pt nanoparticles and ALD-coated TiO2.

AB - Atomically controlled thin TiO2 layers were coated onto a carbon-supported Pt nanoparticle (Pt/C) surface using an atomic layer deposition (ALD) technique. Then, the resulting TiO2 coated Pt/C (ALD(TiO2)-Pt/C) was heat-treated at 150 °C under N2 atmosphere. The heat-treated ALD(TiO2)-Pt/C (ALD(TiO2)-Pt/C(150 H T)) catalyst demonstrated improved electrocatalytic glycerol oxidation reaction (GOR) activity with a turnover frequency (TOF) 3-times higher than for uncoated Pt/C catalyst. Interestingly, the ALD(TiO2)-Pt/C(150 H T) catalyst maintained its catalytic GOR performance after a cyclic voltammetry (CV) stability test of 1200 cycles, preventing Pt sintering due to strong Pt-TiO2 interaction. The reaction chemistry for GOR on the ALD(TiO2)-Pt/C(150 H T) catalyst also changed due to the newly created Pt-TiO2 interfaces, producing more oxidized chemicals such as glyceric acid and glycolic acid. The enhanced GOR performance is related to the formation of new Pt-O-Ti bonds and to change in the physicochemical properties of the Pt by interaction between the Pt nanoparticles and ALD-coated TiO2.

KW - Atomic layer deposition

KW - Electrocatalytic oxidations

KW - Glycerol

KW - Platinum nanoparticle

KW - Titanium dioxide

UR - https://www.scopus.com/pages/publications/85084092629

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DO - 10.1016/j.apcatb.2020.119037

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VL - 273

JO - Applied Catalysis B: Environmental

JF - Applied Catalysis B: Environmental

M1 - 119037

ER -

Enhanced catalytic performance and changed reaction chemistry for electrochemical glycerol oxidation by atomic-layer-deposited Pt-nanoparticle catalysts

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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