Noble-metal-free g-C                         3                         N                         4                         /Ni(dmgH)                         2                         composite for efficientphotocatalytic hydrogen evolution under visible light irradiation

Shao Wen Cao; Yu Peng Yuan; James Barber; Say Chye Joachim Loo; Can Xue

doi:10.1016/j.apsusc.2014.04.094

Noble-metal-free g-C ₃ N ₄ /Ni(dmgH) ₂ composite for efficientphotocatalytic hydrogen evolution under visible light irradiation

Shao Wen Cao, Yu Peng Yuan, James Barber, Say Chye Joachim Loo^*, Can Xue

^*Corresponding author for this work

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

182 Citations (Scopus)

Abstract

We report an economic photocatalytic H2generation system consisting of earth-abundant elements onlyby coupling graphitic carbon nitride (g-C ₃ N ₄ ) with Ni(dmgH)2sub-microwires that serve as effectiveco-catalysts for H2evolution. This composite photocatalyst exhibits efficient hydrogen evolution undervisible-light irradiation in the presence of triethanolamine as electron donor. The optimal coupling of3.5 wt% Ni(dmgH)2to g-C ₃ N ₄ (5 mg composite) allows for a steady H2generation rate of 1.18 μmol/h withexcellent stability. This study demonstrates that the combination of polymeric g-C ₃ N ₄ semiconductorand small proportion of transition-metal-based co-catalyst could serve as a stable, earth-abundant andlow-cost system for solar-to-hydrogen conversion.

Original language	English
Pages (from-to)	344-349
Number of pages	6
Journal	Applied Surface Science
Volume	319
Issue number	1
DOIs	https://doi.org/10.1016/j.apsusc.2014.04.094
Publication status	Published - 2014
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2014 Elsevier B.V. All rights reserved.

ASJC Scopus Subject Areas

General Chemistry
Condensed Matter Physics
General Physics and Astronomy
Surfaces and Interfaces
Surfaces, Coatings and Films

Keywords

Graphitic carbon nitride
Hydrogen evolution
Nickel-based co-catalyst
Photocatalyst
Water splitting

UN SDGs

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

Access to Document

10.1016/j.apsusc.2014.04.094

Cite this

Cao, S. W., Yuan, Y. P., Barber, J., Loo, S. C. J., & Xue, C. (2014). Noble-metal-free g-C ₃ N ₄ /Ni(dmgH) ₂ composite for efficientphotocatalytic hydrogen evolution under visible light irradiation Applied Surface Science, 319(1), 344-349. https://doi.org/10.1016/j.apsusc.2014.04.094

Cao, Shao Wen ; Yuan, Yu Peng ; Barber, James et al. / Noble-metal-free g-C ₃ N ₄ /Ni(dmgH) ₂ composite for efficientphotocatalytic hydrogen evolution under visible light irradiation In: Applied Surface Science. 2014 ; Vol. 319, No. 1. pp. 344-349.

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abstract = " We report an economic photocatalytic H2generation system consisting of earth-abundant elements onlyby coupling graphitic carbon nitride (g-C 3 N 4 ) with Ni(dmgH)2sub-microwires that serve as effectiveco-catalysts for H2evolution. This composite photocatalyst exhibits efficient hydrogen evolution undervisible-light irradiation in the presence of triethanolamine as electron donor. The optimal coupling of3.5 wt% Ni(dmgH)2to g-C 3 N 4 (5 mg composite) allows for a steady H2generation rate of 1.18 μmol/h withexcellent stability. This study demonstrates that the combination of polymeric g-C 3 N 4 semiconductorand small proportion of transition-metal-based co-catalyst could serve as a stable, earth-abundant andlow-cost system for solar-to-hydrogen conversion.",

keywords = "Graphitic carbon nitride, Hydrogen evolution, Nickel-based co-catalyst, Photocatalyst, Water splitting",

author = "Cao, {Shao Wen} and Yuan, {Yu Peng} and James Barber and Loo, {Say Chye Joachim} and Can Xue",

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Cao, SW, Yuan, YP, Barber, J, Loo, SCJ & Xue, C 2014, ' Noble-metal-free g-C ₃ N ₄ /Ni(dmgH) ₂ composite for efficientphotocatalytic hydrogen evolution under visible light irradiation ', Applied Surface Science, vol. 319, no. 1, pp. 344-349. https://doi.org/10.1016/j.apsusc.2014.04.094

Noble-metal-free g-C ₃ N ₄ /Ni(dmgH) ₂ composite for efficientphotocatalytic hydrogen evolution under visible light irradiation . / Cao, Shao Wen; Yuan, Yu Peng; Barber, James et al.
In: Applied Surface Science, Vol. 319, No. 1, 2014, p. 344-349.

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

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AB - We report an economic photocatalytic H2generation system consisting of earth-abundant elements onlyby coupling graphitic carbon nitride (g-C 3 N 4 ) with Ni(dmgH)2sub-microwires that serve as effectiveco-catalysts for H2evolution. This composite photocatalyst exhibits efficient hydrogen evolution undervisible-light irradiation in the presence of triethanolamine as electron donor. The optimal coupling of3.5 wt% Ni(dmgH)2to g-C 3 N 4 (5 mg composite) allows for a steady H2generation rate of 1.18 μmol/h withexcellent stability. This study demonstrates that the combination of polymeric g-C 3 N 4 semiconductorand small proportion of transition-metal-based co-catalyst could serve as a stable, earth-abundant andlow-cost system for solar-to-hydrogen conversion.

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Cao SW, Yuan YP, Barber J, Loo SCJ , Xue C. Noble-metal-free g-C ₃ N ₄ /Ni(dmgH) ₂ composite for efficientphotocatalytic hydrogen evolution under visible light irradiation Applied Surface Science. 2014;319(1):344-349. doi: 10.1016/j.apsusc.2014.04.094