Direct Anchoring of Molybdenum Sulfide Molecular Catalysts on Antimony Selenide Photocathodes for Solar Hydrogen Production.

Autor: Adams P; Department of Chemistry, University of Zurich, Zurich, 8057, Switzerland., Bühler J; Department of Chemistry, University of Zurich, Zurich, 8057, Switzerland., Walz I; Department of Chemistry, University of Zurich, Zurich, 8057, Switzerland., Moehl T; Department of Chemistry, University of Zurich, Zurich, 8057, Switzerland., Roithmeyer H; Department of Chemistry, University of Zurich, Zurich, 8057, Switzerland., Blacque O; Department of Chemistry, University of Zurich, Zurich, 8057, Switzerland., Comini N; Department of Physics, University of Zurich, Zurich, 8057, Switzerland.; Swiss Light Source, Paul Scherrer Institute, Villigen, 5232, Switzerland., Diulus JT; Department of Physics, University of Zurich, Zurich, 8057, Switzerland.; Swiss Light Source, Paul Scherrer Institute, Villigen, 5232, Switzerland., Alberto R; Department of Chemistry, University of Zurich, Zurich, 8057, Switzerland., Siol S; Surface Science and Coating Technologies Laboratory/Transport at Nanoscale Interfaces Laboratory, Swiss Federal Laboratories for Materials Science and Technology (EMPA), Dübendorf, 8600, Switzerland., Dimitrievska M; Surface Science and Coating Technologies Laboratory/Transport at Nanoscale Interfaces Laboratory, Swiss Federal Laboratories for Materials Science and Technology (EMPA), Dübendorf, 8600, Switzerland., Novotny Z; Department of Physics, University of Zurich, Zurich, 8057, Switzerland.; Swiss Light Source, Paul Scherrer Institute, Villigen, 5232, Switzerland., Tilley SD; Department of Chemistry, University of Zurich, Zurich, 8057, Switzerland.
Jazyk: angličtina
Zdroj: ACS energy letters [ACS Energy Lett] 2024 Jul 12; Vol. 9 (8), pp. 3828-3834. Date of Electronic Publication: 2024 Jul 12 (Print Publication: 2024).
DOI: 10.1021/acsenergylett.4c01570
Abstrakt: Molybdenum sulfide serves as an effective nonprecious metal catalyst for hydrogen evolution, primarily active at edge sites with unsaturated molybdenum sites or terminal disulfides. To improve the activity at a low loading density, two molybdenum sulfide clusters, [Mo 3 S 4 ] 4+ and [Mo 3 S 13 ] 2- , were investigated. The Mo 3 S x molecular catalysts were heterogenized on Sb 2 Se 3 with a simple soaking treatment, resulting in a thin catalyst layer of only a few nanometers that gave up to 20 mA cm -2 under one sun illumination. Both [Mo 3 S 4 ] 4+ and [Mo 3 S 13 ] 2- exhibit catalytic activities on Sb 2 Se 3 , with [Mo 3 S 13 ] 2- emerging as the superior catalyst, demonstrating enhanced photovoltage and an average faradaic efficiency of 100% for hydrogen evolution. This superiority is attributed to the effective loading and higher catalytic activity of [Mo 3 S 13 ] 2- on the Sb 2 Se 3 surface, validated by X-ray photoelectron and Raman spectroscopy.
Competing Interests: The authors declare no competing financial interest.
(© 2024 The Authors. Published by American Chemical Society.)
Databáze: MEDLINE
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