Special Issue "Photocatalytic Water Splitting"

A special issue of Catalysts (ISSN 2073-4344).

Deadline for manuscript submissions: 31 May 2018

Special Issue Editors

Guest Editor
Prof. Marcelino Maneiro

Department of Inorganic Chemistry, Faculty of Sciences, University of Santiago de Compostela, Lugo 27002, Spain
Website | E-Mail
Interests: biomimetic catalysts; water splitting; manganese; bioinorganic; artificial photosynthesis; peroxidase; catalase
Guest Editor
Dr. Pau Farràs Costa

School of Chemistry, National University of Ireland Galway, University Road, H91 CF50 Galway, Ireland
Website | E-Mail
Interests: water splitting; artificial photosynthesis; photochemistry; photoactive materials; nanomaterials

Special Issue Information

Dear Colleagues,

Photocatalytic water splitting constitutes one major goal that addresses both the fundamental science and practical applications of renewable energy production. The Oxygen Evolving Complex (OEC) is the native enzyme that catalyzes the oxidation of water in natural photosynthesis to release oxygen. The creation of biomimetic systems to reproduce the basic chemistry of this process gives us more insight into better understanding this crucial natural reaction which is responsible of the atmospheric oxygen that we breathe. On the other hand, the growing world energy demand, along with the need for control of gas emissions, explains the current relevance of the conversion of solar energy to hydrogen by means of water splitting process. Decomposing water is the more direct way to produce hydrogen, which can be stored and utilized as a transportable fuel or converted into energy-rich organic molecules, to cope with the intermittent character of the solar radiation.

This Special Issue aims to cover recent progress and developments in fabricating stable and highly active catalysts for photochemical water oxidation. Moreover, the research for understanding the fine details of natural photosynthesis, as well as the advances in the area of solar-powered fuel generation, should be important subjects for this Special Issue.

Prof. Dr. Marcelino Maneiro
Dr. Pau Farràs Costa
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Catalysts is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1300 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Water splitting
  • artificial photosynthesis
  • photocatalysts
  • hydrogen generation
  • oxygen evolution
  • carbon dioxide
  • renewable energy
  • energy storage

Published Papers (1 paper)

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Research

Open AccessArticle Hydrogen Production via Water Dissociation Using Pt–TiO2 Photocatalysts: An Oxidation–Reduction Network
Catalysts 2017, 7(11), 324; doi:10.3390/catal7110324
Received: 18 September 2017 / Revised: 18 October 2017 / Accepted: 18 October 2017 / Published: 30 October 2017
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Abstract
Several TiO2 based semiconductors with different Pt loadings are prepared using incipient impregnation, wet impregnation and the sol-gel method. These photocatalysts are evaluated in the Photo-CREC-Water II Photoreactor for hydrogen production via water dissociation, using an organic renewable scavenger (ethanol). Results obtained
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Several TiO2 based semiconductors with different Pt loadings are prepared using incipient impregnation, wet impregnation and the sol-gel method. These photocatalysts are evaluated in the Photo-CREC-Water II Photoreactor for hydrogen production via water dissociation, using an organic renewable scavenger (ethanol). Results obtained show the influence of the photocatalyst preparation in the production of hydrogen and in the observed quantum yields. Furthermore, it is established that the reaction networks leading to hydrogen production, using various photocatalysts, share common features. This analysis is developed by both identifying and quantifying different chemical species and their changes with irradiation time. Key species in this oxidation–reduction network are hydrogen, hydrogen peroxide, ethanol, methane, ethane, acetaldehyde and carbon dioxide. On this basis, it is shown that under an inert gas atmosphere, ethanol consumption is sub-stoichiometric. This points towards simultaneous ethanol consumption and the formation of the ethanol scavenger. Full article
(This article belongs to the Special Issue Photocatalytic Water Splitting)
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