High-Performance Photocatalytic H2 Production Using a Binary Cu/TiO2/SrTiO3 Heterojunction

descriptionPublicationkeyboard_double_arrow_right Article 23 Mar 2023 Spain, Spain English Publisher:American Chemical Society (ACS)Journal:ACS Applied Energy Materials, volume 6, pages 4,007-4,015 (issn: 2574-0962, eissn: 2574-0962,

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Authors: Marcos González-Tejero; Joyce G. Villachica-Llamosas; Alba Ruiz-Aguirre; Gerardo Colón;

doi: 10.1021/acsaem.3c00219

pmid: 37064410

pmc: PMC10091904

handle: 10261/353788

High-Performance Photocatalytic H2 Production Using a Binary Cu/TiO2/SrTiO3 Heterojunction

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Abstract

Cu/TiO2/SrTiO3 hybrid structures have been synthesized by the simple impregnation method from Cu/TiO2 and SrTiO3 systems. The structural and surface characterization stated that Cu/TiO2/SrTiO3 composites form an effective covering of SrTiO3 by Cu/TiO2. The heterostructured catalysts lead to an outstanding improved photoactivity for hydrogen production from methanol photoreforming that would be related with the efficient separation of charge pairs favored by the Cu/TiO2/SrTiO3 heterojunction. The best photoproduction is attained for the 30 wt % SrTiO3 heterojunction showing 81.7 mmol/g H2 after 6 h (leading to an apparent quantum yield of ca 1%), 1.7 times higher than that of bare Cu/TiO2.

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Spain, Spain

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Keywords

Heteerogeneous, SrTiO3, Ensure access to affordable, reliable, sustainable and modern energy for all, Irradation, http://vocabularies.unesco.org/thesaurus/concept640, Band, http://metadata.un.org/sdg/7, Strontium Titanate, TiO2, Nanoparticles, H2O Evolution, Heterojunction, Photocatalysis, http://vocabularies.unesco.org/thesaurus/concept4989, Hydrogen, Composites

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