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Control Strategy on Two-/Four-Electron Pathway of Water Splitting by Multidoped Carbon Based Catalysts

Wu, X; Zhu, C; Wang, L; Guo, S; Zhang, Y; Li, H; Huang, H; ... Kang, Z; + view all (2017) Control Strategy on Two-/Four-Electron Pathway of Water Splitting by Multidoped Carbon Based Catalysts. ACS Catalysis , 7 (3) pp. 1637-1645. 10.1021/acscatal.6b03244. Green open access

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Abstract

Overall photocatalytic water splitting can proceed through a four-electron or two-electron/two-step pathway. However, it is challenging to manipulate the two- or four-electron pathway. Here, we present a carbon-based nanostructure codoped with nitrogen, sulfur, and a transition metal that exhibits reliable photocatalytic ability and satisfactory photostability in water splitting without the need for sacrificial agents. Note that in the present system the transition-metal-doped structure (M = Cr, Cd, Fe, Zn) as a photocatalyst splits water into H2 and O2 through a two-electron pathway while the structure on doping with rare-earth (Re) elements (M = Re = Sm, Ce, Eu, Pr, Er) acts as a photocatalyst via a four-electron pathway and carbon dots work herein as an electron acceptor and a reduction cocatalyst.

Type: Article
Title: Control Strategy on Two-/Four-Electron Pathway of Water Splitting by Multidoped Carbon Based Catalysts
Open access status: An open access version is available from UCL Discovery
DOI: 10.1021/acscatal.6b03244
Publisher version: http://doi.org/10.1021/acscatal.6b03244
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Science & Technology, Physical Sciences, Chemistry, Physical, Chemistry, carbon-based catalysts, photocatalyst, overall photocatalytic water splitting, two-electron pathway, four-electron pathway, GRAPHENE QUANTUM DOTS, VISIBLE-LIGHT, OXYGEN REDUCTION, HYDROGEN GENERATION, FLUORESCENT CARBON, HIGHLY EFFICIENT, PHOTOCATALYTIC ACTIVITY, METAL-COMPLEXES, OXIDATION, EVOLUTION
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering
URI: https://discovery.ucl.ac.uk/id/eprint/1563294
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