MoSe2-Sensitized Water Splitting Assisted by C60-Dendrons on the Basal Surface

Tomoyuki Tajima; Tomoki Matsuura; Arif Efendi; Mariko Yukimoto; Yutaka Takaguchi

doi:10.1002/chem.202402690

MoSe₂-Sensitized Water Splitting Assisted by C₆₀-Dendrons on the Basal Surface

Tomoyuki Tajima^*, Tomoki Matsuura, Arif Efendi, Mariko Yukimoto, Yutaka Takaguchi^*

^*Corresponding author for this work

Materials Design and Engineering

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

Abstract

To facilitate water splitting using MoSe₂ as a light absorber, we fabricated water-dispersible MoSe₂/C₆₀-dendron nanohybrids via physical modification of the basal plane of MoSe₂. Upon photoirradiation, the mixed-dimension MoSe₂/C₆₀ (2D/0D) heterojunction generates a charge-separated state (MoSe₂⋅⁺/C₆₀⋅⁻) through electron extraction from the exciton in MoSe₂ to C₆₀. This process is followed by the hydrogen evolution reaction (HER) from water in the presence of a sacrificial donor (1-benzyl-1,4-dihydronicotinamide) and co-catalyst (Pt-PVP). The apparent quantum yields of the HER were estimated to be 0.06 % and 0.27 % upon photoexcitation at the A- and B-exciton absorption peaks (λ_max=800 and 700 nm), respectively.

Original language	English
Article number	e202402690
Journal	Chemistry - A European Journal
Volume	30
Issue number	70
DOIs	https://doi.org/10.1002/chem.202402690
State	Published - 2024/12/13

Keywords

Fullerene
Hydrogen evolution
Photocatalyst
Transition metal dichalcogenide
Water splitting

ASJC Scopus subject areas

Catalysis
General Chemistry
Organic Chemistry

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1002/chem.202402690

Cite this

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title = "MoSe2-Sensitized Water Splitting Assisted by C60-Dendrons on the Basal Surface",

abstract = "To facilitate water splitting using MoSe2 as a light absorber, we fabricated water-dispersible MoSe2/C60-dendron nanohybrids via physical modification of the basal plane of MoSe2. Upon photoirradiation, the mixed-dimension MoSe2/C60 (2D/0D) heterojunction generates a charge-separated state (MoSe2⋅+/C60⋅−) through electron extraction from the exciton in MoSe2 to C60. This process is followed by the hydrogen evolution reaction (HER) from water in the presence of a sacrificial donor (1-benzyl-1,4-dihydronicotinamide) and co-catalyst (Pt-PVP). The apparent quantum yields of the HER were estimated to be 0.06 % and 0.27 % upon photoexcitation at the A- and B-exciton absorption peaks (λmax=800 and 700 nm), respectively.",

keywords = "Fullerene, Hydrogen evolution, Photocatalyst, Transition metal dichalcogenide, Water splitting",

author = "Tomoyuki Tajima and Tomoki Matsuura and Arif Efendi and Mariko Yukimoto and Yutaka Takaguchi",

note = "Publisher Copyright: {\textcopyright} 2024 The Author(s). Chemistry - A European Journal published by Wiley-VCH GmbH.",

year = "2024",

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doi = "10.1002/chem.202402690",

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T1 - MoSe2-Sensitized Water Splitting Assisted by C60-Dendrons on the Basal Surface

AU - Tajima, Tomoyuki

AU - Matsuura, Tomoki

AU - Efendi, Arif

AU - Yukimoto, Mariko

AU - Takaguchi, Yutaka

PY - 2024/12/13

Y1 - 2024/12/13

N2 - To facilitate water splitting using MoSe2 as a light absorber, we fabricated water-dispersible MoSe2/C60-dendron nanohybrids via physical modification of the basal plane of MoSe2. Upon photoirradiation, the mixed-dimension MoSe2/C60 (2D/0D) heterojunction generates a charge-separated state (MoSe2⋅+/C60⋅−) through electron extraction from the exciton in MoSe2 to C60. This process is followed by the hydrogen evolution reaction (HER) from water in the presence of a sacrificial donor (1-benzyl-1,4-dihydronicotinamide) and co-catalyst (Pt-PVP). The apparent quantum yields of the HER were estimated to be 0.06 % and 0.27 % upon photoexcitation at the A- and B-exciton absorption peaks (λmax=800 and 700 nm), respectively.

AB - To facilitate water splitting using MoSe2 as a light absorber, we fabricated water-dispersible MoSe2/C60-dendron nanohybrids via physical modification of the basal plane of MoSe2. Upon photoirradiation, the mixed-dimension MoSe2/C60 (2D/0D) heterojunction generates a charge-separated state (MoSe2⋅+/C60⋅−) through electron extraction from the exciton in MoSe2 to C60. This process is followed by the hydrogen evolution reaction (HER) from water in the presence of a sacrificial donor (1-benzyl-1,4-dihydronicotinamide) and co-catalyst (Pt-PVP). The apparent quantum yields of the HER were estimated to be 0.06 % and 0.27 % upon photoexcitation at the A- and B-exciton absorption peaks (λmax=800 and 700 nm), respectively.

KW - Fullerene

KW - Hydrogen evolution

KW - Photocatalyst

KW - Transition metal dichalcogenide

KW - Water splitting

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