A highly efficient noble metal free photocatalytic hydrogen evolution system containing MoP and CdS quantum dots

Shengming Yin; Jianyu Han; Yinjun Zou; Tianhua Zhou; Rong Xu

doi:10.1039/c6nr00989a

A highly efficient noble metal free photocatalytic hydrogen evolution system containing MoP and CdS quantum dots

Shengming Yin, Jianyu Han, Yinjun Zou, Tianhua Zhou, Rong Xu^*

^*Corresponding author for this work

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

78 Citations (Scopus)

Abstract

We report the construction of a highly efficient noble metal free photocatalytic hydrogen (H₂) evolution system using CdS quantum dots as the light absorber and metallic MoP as the cocatalyst. MoP can be prepared by a facile temperature programmed reduction method and small clusters of MoP nanoparticles sized 10-30 nm were obtained by probe ultrasonication. The effect of synthesis conditions on the electrocatalytic and photocatalytic H₂ evolution activity of MoP was investigated. The highest H₂ evolution rate of 1100 μmol h^-1 can be achieved by the optimized system under visible light (λ ≥ 420 nm), which is comparable to that when Pt was used as the cocatalyst. A high quantum efficiency of 45% is obtained at 460 nm irradiation.

Original language	English
Pages (from-to)	14438-14447
Number of pages	10
Journal	Nanoscale
Volume	8
Issue number	30
DOIs	https://doi.org/10.1039/c6nr00989a
Publication status	Published - Aug 14 2016
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2016 The Royal Society of Chemistry.

ASJC Scopus Subject Areas

General Materials Science

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title = "A highly efficient noble metal free photocatalytic hydrogen evolution system containing MoP and CdS quantum dots",

abstract = "We report the construction of a highly efficient noble metal free photocatalytic hydrogen (H2) evolution system using CdS quantum dots as the light absorber and metallic MoP as the cocatalyst. MoP can be prepared by a facile temperature programmed reduction method and small clusters of MoP nanoparticles sized 10-30 nm were obtained by probe ultrasonication. The effect of synthesis conditions on the electrocatalytic and photocatalytic H2 evolution activity of MoP was investigated. The highest H2 evolution rate of 1100 μmol h-1 can be achieved by the optimized system under visible light (λ ≥ 420 nm), which is comparable to that when Pt was used as the cocatalyst. A high quantum efficiency of 45% is obtained at 460 nm irradiation.",

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T1 - A highly efficient noble metal free photocatalytic hydrogen evolution system containing MoP and CdS quantum dots

AU - Yin, Shengming

AU - Han, Jianyu

AU - Zou, Yinjun

AU - Zhou, Tianhua

AU - Xu, Rong

PY - 2016/8/14

Y1 - 2016/8/14

N2 - We report the construction of a highly efficient noble metal free photocatalytic hydrogen (H2) evolution system using CdS quantum dots as the light absorber and metallic MoP as the cocatalyst. MoP can be prepared by a facile temperature programmed reduction method and small clusters of MoP nanoparticles sized 10-30 nm were obtained by probe ultrasonication. The effect of synthesis conditions on the electrocatalytic and photocatalytic H2 evolution activity of MoP was investigated. The highest H2 evolution rate of 1100 μmol h-1 can be achieved by the optimized system under visible light (λ ≥ 420 nm), which is comparable to that when Pt was used as the cocatalyst. A high quantum efficiency of 45% is obtained at 460 nm irradiation.

AB - We report the construction of a highly efficient noble metal free photocatalytic hydrogen (H2) evolution system using CdS quantum dots as the light absorber and metallic MoP as the cocatalyst. MoP can be prepared by a facile temperature programmed reduction method and small clusters of MoP nanoparticles sized 10-30 nm were obtained by probe ultrasonication. The effect of synthesis conditions on the electrocatalytic and photocatalytic H2 evolution activity of MoP was investigated. The highest H2 evolution rate of 1100 μmol h-1 can be achieved by the optimized system under visible light (λ ≥ 420 nm), which is comparable to that when Pt was used as the cocatalyst. A high quantum efficiency of 45% is obtained at 460 nm irradiation.

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A highly efficient noble metal free photocatalytic hydrogen evolution system containing MoP and CdS quantum dots

Abstract

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