Artificial photosynthetic hydrogen evolution over g-C3N 4 nanosheets coupled with cobaloxime

Shao Wen Cao; Xin Feng Liu; Yu Peng Yuan; Zhen Yi Zhang; Jun Fang; Say Chye Joachim Loo; James Barber; Tze Chien Sum; Can Xue

doi:10.1039/c3cp53350f

Artificial photosynthetic hydrogen evolution over g-C₃N ₄ nanosheets coupled with cobaloxime

Shao Wen Cao, Xin Feng Liu, Yu Peng Yuan, Zhen Yi Zhang, Jun Fang, Say Chye Joachim Loo^*, James Barber, Tze Chien Sum, Can Xue

^*Corresponding author for this work

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

104 Citations (Scopus)

Abstract

We report an economic and noble-metal-free artificial photosynthetic system, consisting of g-C₃N₄ as a photosensitizer and a photocatalyst, and cobaloxime as a co-catalyst, for H₂ generation. This system allows for effective electron transfer from excited g-C ₃N₄ to Co^III(dmgH)₂pyCl to generate reduced cobaloxime intermediate species for efficient H₂ evolution. Transient fluorescence studies reveal that the presence of cobaloxime and TEOA promotes the population of excited electrons to transfer from g-C ₃N₄, which is responsible for the high photocatalytic activity of this g-C₃N₄-cobaloxime conjugation system.

Original language	English
Pages (from-to)	18363-18366
Number of pages	4
Journal	Physical Chemistry Chemical Physics
Volume	15
Issue number	42
DOIs	https://doi.org/10.1039/c3cp53350f
Publication status	Published - Nov 14 2013
Externally published	Yes

ASJC Scopus Subject Areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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10.1039/c3cp53350f

Cite this

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title = "Artificial photosynthetic hydrogen evolution over g-C3N 4 nanosheets coupled with cobaloxime",

abstract = "We report an economic and noble-metal-free artificial photosynthetic system, consisting of g-C3N4 as a photosensitizer and a photocatalyst, and cobaloxime as a co-catalyst, for H2 generation. This system allows for effective electron transfer from excited g-C 3N4 to CoIII(dmgH)2pyCl to generate reduced cobaloxime intermediate species for efficient H2 evolution. Transient fluorescence studies reveal that the presence of cobaloxime and TEOA promotes the population of excited electrons to transfer from g-C 3N4, which is responsible for the high photocatalytic activity of this g-C3N4-cobaloxime conjugation system.",

author = "Cao, {Shao Wen} and Liu, {Xin Feng} and Yuan, {Yu Peng} and Zhang, {Zhen Yi} and Jun Fang and Loo, {Say Chye Joachim} and James Barber and Sum, {Tze Chien} and Can Xue",

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AU - Cao, Shao Wen

AU - Liu, Xin Feng

AU - Yuan, Yu Peng

AU - Zhang, Zhen Yi

AU - Fang, Jun

AU - Loo, Say Chye Joachim

AU - Barber, James

AU - Sum, Tze Chien

AU - Xue, Can

PY - 2013/11/14

Y1 - 2013/11/14

N2 - We report an economic and noble-metal-free artificial photosynthetic system, consisting of g-C3N4 as a photosensitizer and a photocatalyst, and cobaloxime as a co-catalyst, for H2 generation. This system allows for effective electron transfer from excited g-C 3N4 to CoIII(dmgH)2pyCl to generate reduced cobaloxime intermediate species for efficient H2 evolution. Transient fluorescence studies reveal that the presence of cobaloxime and TEOA promotes the population of excited electrons to transfer from g-C 3N4, which is responsible for the high photocatalytic activity of this g-C3N4-cobaloxime conjugation system.

AB - We report an economic and noble-metal-free artificial photosynthetic system, consisting of g-C3N4 as a photosensitizer and a photocatalyst, and cobaloxime as a co-catalyst, for H2 generation. This system allows for effective electron transfer from excited g-C 3N4 to CoIII(dmgH)2pyCl to generate reduced cobaloxime intermediate species for efficient H2 evolution. Transient fluorescence studies reveal that the presence of cobaloxime and TEOA promotes the population of excited electrons to transfer from g-C 3N4, which is responsible for the high photocatalytic activity of this g-C3N4-cobaloxime conjugation system.

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Artificial photosynthetic hydrogen evolution over g-C₃N ₄ nanosheets coupled with cobaloxime

Abstract

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