Solar Fuels Production by Artificial Photosynthesis

A special issue of Catalysts (ISSN 2073-4344). This special issue belongs to the section "Photocatalysis".

Deadline for manuscript submissions: closed (31 December 2020) | Viewed by 5428

Special Issue Editors


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Guest Editor
Photoactivated Processes Unit, IMDEA Energía, Ramón de la Sagra, 3, Móstoles, Madrid, Spain
Interests: catalysis; CO2 conversion; solar fuels; artificial photosynthesis; photocatalysis; photoelectrochemistry; inorganic materials; organic semiconductors; MOFs; COFs; in situ spectroscopy

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Guest Editor
Institute of Materials Science of Seville, Seville, Spain
Interests: catalytic and photocatalytic materials for energy and environment

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Guest Editor
Instituto de Catálisis y Petroleoquímica (ICP), CSIC, Marie Curie, 2, Cantoblanco, 28049 Madrid, Spain
Interests: photocatalysis; photothermal catalysis; inorganic semiconductors; photoreforming; CO2 conversion
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Special Issue Information

Dear Colleagues,

Solar fuels production by artificial photosynthesis, comprising water splitting, photoreforming, and CO2 reduction via photocatalysis and photoelectrochemistry, is among the most important emerging technologies to address the challenges that humanity faces today on the way towards sustainable development. Catalytic materials—photocatalysts and photoelectrodes—lie at the heart of these processes, being able to harvest (sun)light, separate charge carriers, and promote reactions of interest on their surface. Accordingly, remarkable research effort is being devoted to the development of these catalysts. This Special Issue aims at gathering current scientific advancements in this area, with a special focus on catalysts and devices.

Dr. Víctor A. de la Peña O'Shea
Dr. Gerardo Colón Ibañez
Dr. Fernando Fresno
Guest Editors

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Keywords

  • Artificial photosynthesis
  • Solar fuels
  • Photo(electro)catalysis
  • Hydrogen
  • CO2 reduction
  • Photoreforming
  • Photocatalytic devices

Published Papers (2 papers)

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Research

10 pages, 3428 KiB  
Article
g-C3N4-Stabilised Organic–Inorganic Halide Perovskites for Efficient Photocatalytic Selective Oxidation of Benzyl Alcohol
by Menglong Zhang, Weizhe Wang, Fangliang Gao and Dongxiang Luo
Catalysts 2021, 11(4), 505; https://doi.org/10.3390/catal11040505 - 16 Apr 2021
Cited by 5 | Viewed by 2289
Abstract
The outstanding optoelectronic performance and facile synthetic approach of metal halide perovskites has inspired additional applications well beyond efficient solar cells and light emitting diodes (LEDs). Herein, we present an alternative option available for the optimisation of selective and efficient oxidation of benzylic [...] Read more.
The outstanding optoelectronic performance and facile synthetic approach of metal halide perovskites has inspired additional applications well beyond efficient solar cells and light emitting diodes (LEDs). Herein, we present an alternative option available for the optimisation of selective and efficient oxidation of benzylic alcohols through photocatalysis. The materials engineering of hybrids based on formamidine lead bromide (FAPbBr3) and graphic carbon nitride (g-C3N4) is achieved via facile anti-solvent approach. The photocatalytic performance of the hybrids is highly reliant on weight ratio between FAPbBr3 and g-C3N4. Besides, the presence of g-C3N4 dramatically enhances the long-term stability of the hybrids, compared to metal oxides hybrids. Detailed optical, electrical and thermal studies reveal the proposed novel photocatalytic and stability behaviours arising in FAPbBr3 and g-C3N4 hybrid materials. Full article
(This article belongs to the Special Issue Solar Fuels Production by Artificial Photosynthesis)
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15 pages, 3916 KiB  
Article
Influence of Photo-Deposited Pt and Pd onto Chromium Doped TiO2 Nanotubes in Photo-Electrochemical Water Splitting for Hydrogen Generation
by Tayebeh Sharifi, Tecush Mohammadi, Mohamad Mohsen Momeni, Hrvoje Kusic, Marijana Kraljic Rokovic, Ana Loncaric Bozic and Yousef Ghayeb
Catalysts 2021, 11(2), 212; https://doi.org/10.3390/catal11020212 - 05 Feb 2021
Cited by 10 | Viewed by 2476
Abstract
Hydrogen (H2) is considered as an ideal fuel for the future. The photo-electrochemical (PEC) water splitting employing semiconducting materials and induced irradiation, preferably of solar spectrum, presents a viable route for H2 production. In this work, self-ordered chromium-doped TiO2 [...] Read more.
Hydrogen (H2) is considered as an ideal fuel for the future. The photo-electrochemical (PEC) water splitting employing semiconducting materials and induced irradiation, preferably of solar spectrum, presents a viable route for H2 production. In this work, self-ordered chromium-doped TiO2 nanotube (CT) was fabricated using in-situ electro-anodization. CT surface modification was then performed by photo-deposition of Pt and Pd particles, producing Pt-CT and Pd-CT catalysts, respectively. Their morphological features, crystallinity, surface composition, and optical absorption have been inspected by scanning electron microscopy (SEM), X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDX), Raman, and UV–vis absorption spectroscopy. Linear sweep voltammetry, chronoamperometry, and open circuit potential methods have been applied to study PEC activities of Pt-CT and Pd-CT catalysts in a form of electrodes. It was found that Pt-CT and Pd-CT electrodes possess excellent photo-generated electron/hole (e/h+) separation and transport properties. The enhanced photocurrent responses of 4 and 3 times more than that of CT are revealed for Pt-CT and Pd-CT, respectively. The activity of as-prepared Pt-CT and Pd-CT catalysts was then tested for H2 generation. The maximum amount of the evolved H2 followed decreasing order: 1.08 > 0.65 > 0.26 mL cm−2 h−1 for Pt-CT, Pd-CT, and CT electrodes, respectively, clearly showing the positive contribution of photo-deposited (nano)particles onto CT surface. Full article
(This article belongs to the Special Issue Solar Fuels Production by Artificial Photosynthesis)
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