Enhanced Photocatalytic Hydrogen Evolution from Water Splitting on Ta₂O₅/SrZrO₃ Heterostructures Decorated with Cu_{x}O/RuO₂ Cocatalysts

Ali Margot Huerta-Flores; Francisco Ruiz-Zepeda; Cavit Eyovge; Jedrzej P. Winczewski; Matthias Vandichel; Miran Gaberšček; Nicolas D. Boscher; Han J.G.E. Gardeniers; Leticia M. Torres-Martínez; Arturo Susarrey-Arce

doi:10.1021/acsami.2c02520

journal article·2022-07-20Open access

Enhanced Photocatalytic Hydrogen Evolution from Water Splitting on Ta₂O₅/SrZrO₃ Heterostructures Decorated with Cu_xO/RuO₂ Cocatalysts

Ali Margot Huerta-Flores, Francisco Ruiz-Zepeda, Cavit Eyovge, Jedrzej P. Winczewski, Matthias Vandichel, Miran Gaberšček, Nicolas D. Boscher, Han J.G.E. Gardeniers, Leticia M. Torres-Martínez, Arturo Susarrey-Arce

ACS Applied Materials & Interfaces· Volume 14· Issue 28

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Source abstract

Abstract

Photocatalytic H₂ generation by water splitting is a promising alternative for producing renewable fuels. This work synthesized a new type of Ta₂O₅/SrZrO₃ heterostructure with Ru and Cu (RuO₂/Cu_xO/Ta₂O₅/SrZrO₃) using solid-state chemistry methods to achieve a high H₂ production of 5164 μmol g^-1 h^-1 under simulated solar light, 39 times higher than that produced using SrZrO₃. The heterostructure performance is compared with other Ta₂O₅/SrZrO₃ heterostructure compositions loaded with RuO₂, Cu_xO, or Pt. Cu_xO is used to showcase the usage of less costly cocatalysts to produce H₂. The photocatalytic activity toward H₂ by the RuO₂/Cu_xO/Ta₂O₅/SrZrO₃ heterostructure remains the highest, followed by RuO₂/Ta₂O₅/SrZrO₃ > Cu_xO/Ta₂O₅/SrZrO₃ > Pt/Ta₂O₅/SrZrO₃ > Ta₂O₅/SrZrO₃ > SrZrO₃. Band gap tunability and high optical absorbance in the visible region are more prominent for the heterostructures containing cocatalysts (RuO₂ or Cu_xO) and are even higher for the binary catalyst (RuO₂/Cu_xO). The presence of the binary catalyst is observed to impact the charge carrier transport in Ta₂O₅/SrZrO₃, improving the solar to hydrogen conversion efficiency. The results represent a valuable contribution to the design of SrZrO₃-based heterostructures for photocatalytic H₂ production by solar water splitting.

Source: europepmc · Quality: candidate unverified · Source record ↗

Research context

Catalysis & surfaces

OpenAlex topics: Advanced Photocatalysis Techniques · Copper-based nanomaterials and applications · ZnO doping and properties

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Universidad Autónoma de Nuevo León, Facultad de Ingeniería Civil, Departamento de Ecomateriales y Energía, Av. Universidad S/N Ciudad Universitaria, San Nicolás de Los Garza, Nuevo León C.P 66455, México

Department of Materials Chemistry, National Institute of Chemistry, Hajdrihova 19, Ljubljana, SI 1000, Slovenia

Department of Physics and Chemistry of Materials, Institute of Metals and Technology, LepiPot 11, Ljubljana, SI 1000, Slovenia

Mesoscale Chemical Systems, MESA+ Institute, University of Twente, P.O. Box 217, Enschede 7500AE, The Netherlands

Department of Chemical Sciences and Bernal Institute, University of Limerick, Limerick V94 T9PX, Republic of Ireland

Materials Research and Technology Department, Luxembourg Institute of Science and Technology, Esch-Sur-Alzette L-4362, Luxembourg

Centro de Investigación en Materiales Avanzados (CIMAV), S.C. Miguel de Cervantes 120, Complejo Industrial Chih, Chihuahua 31136, Chihuahua, Mexico

Funding

Javna Agencija za Raziskovalno Dejavnost RS · Consejo Nacional de Ciencia y Tecnolog?a · H2020 European Research Council

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