Advanced Photo-/Electrocatalysts for Environmental and Energy Applications

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

Deadline for manuscript submissions: closed (31 December 2023) | Viewed by 1353

Special Issue Editors


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Guest Editor
CEMHTI, CNRS (UPR 3079), Orléans, France
Interests: Materials Science; Water treatment; Catalysis; Adsorption; Photo-electrochemistry
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Institutde Chimie Physique, Université Paris-Saclay, Orsay, France
Interests: adsorption; catalysis and physical-chemistry of materials and nanomaterials; photo-electrochemistry
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Guest Editor
Chemical Engineering Department, Middle East Technical University, Üniversiteler, 06800 Ankara, Turkey
Interests: adsorption; catalysis and physical-chemistry of materials and nanomaterials

Special Issue Information

Dear Colleagues,

The excessive emissions of hazardous pollutants into water and air have become an issue in today's society. These emissions lead to water resources contamination and global warming. Therefore, adequate processes are required, advanced oxidation processes (AOPs) especially photocatalysis and electrocatalysis are considered the most promising techniques to overcome and solve such problems. In this context, high-performance catalysts are needed with a depth understanding of their structures, surface and interface for the objective of studying their catalytic mechanisms and performances. The aim of the Special Issue is then to establish sustainable advanced materials to address the water, atmospheric pollution and energy issues. The design and characterization of these catalysts, their new synthesis routes and/or their deposition methods as well as their characterization techniques and applications will be collected under the scope of the current Special Issue.

We welcome submissions in the form of original research papers or short reviews that reflect the state of research in the following specific topics: Synthesis of novel photo/electrocatalysts; Physicochemical characterization of photo/electrocatalysts; Degradation of refractory inorganic and/or organic pollutants; Theoretical studies of photo/electrocatalysts. Water depollution Photo/electrocatalysts for H2 production Photo/electrocatalysts for fuel production Photo/electrocatalysts for CO2 reduction.

Dr. Elhassan Amaterz
Dr. Yassine Naciri
Dr. Asmae Bouziani
Guest Editors

Manuscript Submission Information

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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 2700 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

  • advanced functional materials and nanomaterials
  • advanced oxidation processes
  • physico-chemical properties

Published Papers (1 paper)

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Research

16 pages, 3056 KiB  
Article
Platinum-Modified Mixed Metal Oxide Electrodes for Efficient Chloralkaline-Based Energy Storage
by Jamylle Y. C. Ribeiro, Gessica O. S. Santos, Aline R. Dória, Iñaki Requena, Marcos R. V. Lanza, Katlin I. B. Eguiluz, Giancarlo R. Salazar-Banda, Justo Lobato and Manuel A. Rodrigo
Catalysts 2024, 14(2), 152; https://doi.org/10.3390/catal14020152 - 18 Feb 2024
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Abstract
In this work, a series of novel mixed metal oxide (MMO) electrodes with the composition Ti/RuO2Sb2O4Ptx (0 ≤ x ≤ 10.0) were developed, envisaging their application in a reversible electrochemical cell based on the chloralkaline process [...] Read more.
In this work, a series of novel mixed metal oxide (MMO) electrodes with the composition Ti/RuO2Sb2O4Ptx (0 ≤ x ≤ 10.0) were developed, envisaging their application in a reversible electrochemical cell based on the chloralkaline process as an energy storage system. These electrodes were synthesized via the ionic liquid method. Comprehensive physical, chemical, and electrochemical characterizations were conducted to evaluate their performance. The feasibility of employing these electrodes within reversible processes was explored, using the products generated during the electrolytic operation of the system for fuel cell operation. During the electrolyzer operation, higher current densities resulted in enhanced current efficiencies for the production of oxidized chlorine species. Notably, the presence of platinum in the catalyst exhibited a negligible impact on the coulombic efficiency at low current densities where water oxidation predominates. However, at higher current densities, the presence of platinum significantly improved coulombic efficiency, approaching values of approximately 60%. Transitioning to a fuel cell operation, despite the improved kinetic performance associated with a higher platinum content, the process efficiency was predominantly governed by ohmic losses. Curiously, the MMO electrode made without platinum (Ti/(RuO2)70-(Sb2O4)30) displayed the lowest ohmic losses. This study establishes optimal conditions for future investigations into this promising possibility, which holds great potential for energy storage via chloralkaline-based reversible reactions. Full article
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