Engineering a Cu2O/NiO/Cu2MoS4 hybrid photocathode for H2 generation in water

Chen Yang; Phong D. Tran; Pablo P. Boix; Prince S. Bassi; Natalia Yantara; Lydia H. Wong; James Barber

doi:10.1039/c4nr00386a

Engineering a Cu₂O/NiO/Cu₂MoS₄ hybrid photocathode for H₂ generation in water

Chen Yang, Phong D. Tran^*, Pablo P. Boix, Prince S. Bassi, Natalia Yantara, Lydia H. Wong, James Barber

^*Corresponding author for this work

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

63 Citations (Scopus)

Abstract

We report a scalable process for fabricating a multiple-layer hybrid photocathode, namely Cu₂O/NiO/Cu₂MoS₄, for H₂ generation in water. In pH 5 solution and under 1 sun illumination, the photocathode showed interesting photocatalytic properties. The onset photocurrent was recorded at +0.45 V vs. RHE, while at 0 V vs. RHE, a photocurrent density of 1.25 mA cm^-2 was obtained. It was found that the NiO interlayer enhances charge transfer from the Cu₂O light harvester to the Cu₂MoS₄ hydrogen evolution reaction electrocatalyst which in turn accelerates charge transfer at the electrode/electrolyte interface, and therefore improves the photocatalytic properties of the Cu₂O photocathode.

Original language	English
Pages (from-to)	6506-6510
Number of pages	5
Journal	Nanoscale
Volume	6
Issue number	12
DOIs	https://doi.org/10.1039/c4nr00386a
Publication status	Published - Jun 21 2014
Externally published	Yes

ASJC Scopus Subject Areas

General Materials Science

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abstract = "We report a scalable process for fabricating a multiple-layer hybrid photocathode, namely Cu2O/NiO/Cu2MoS4, for H2 generation in water. In pH 5 solution and under 1 sun illumination, the photocathode showed interesting photocatalytic properties. The onset photocurrent was recorded at +0.45 V vs. RHE, while at 0 V vs. RHE, a photocurrent density of 1.25 mA cm-2 was obtained. It was found that the NiO interlayer enhances charge transfer from the Cu2O light harvester to the Cu2MoS4 hydrogen evolution reaction electrocatalyst which in turn accelerates charge transfer at the electrode/electrolyte interface, and therefore improves the photocatalytic properties of the Cu2O photocathode.",

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AU - Yang, Chen

AU - Tran, Phong D.

AU - Boix, Pablo P.

AU - Bassi, Prince S.

AU - Yantara, Natalia

AU - Wong, Lydia H.

AU - Barber, James

PY - 2014/6/21

Y1 - 2014/6/21

N2 - We report a scalable process for fabricating a multiple-layer hybrid photocathode, namely Cu2O/NiO/Cu2MoS4, for H2 generation in water. In pH 5 solution and under 1 sun illumination, the photocathode showed interesting photocatalytic properties. The onset photocurrent was recorded at +0.45 V vs. RHE, while at 0 V vs. RHE, a photocurrent density of 1.25 mA cm-2 was obtained. It was found that the NiO interlayer enhances charge transfer from the Cu2O light harvester to the Cu2MoS4 hydrogen evolution reaction electrocatalyst which in turn accelerates charge transfer at the electrode/electrolyte interface, and therefore improves the photocatalytic properties of the Cu2O photocathode.

AB - We report a scalable process for fabricating a multiple-layer hybrid photocathode, namely Cu2O/NiO/Cu2MoS4, for H2 generation in water. In pH 5 solution and under 1 sun illumination, the photocathode showed interesting photocatalytic properties. The onset photocurrent was recorded at +0.45 V vs. RHE, while at 0 V vs. RHE, a photocurrent density of 1.25 mA cm-2 was obtained. It was found that the NiO interlayer enhances charge transfer from the Cu2O light harvester to the Cu2MoS4 hydrogen evolution reaction electrocatalyst which in turn accelerates charge transfer at the electrode/electrolyte interface, and therefore improves the photocatalytic properties of the Cu2O photocathode.

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Engineering a Cu₂O/NiO/Cu₂MoS₄ hybrid photocathode for H₂ generation in water

Abstract

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