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Catalysts
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Selective Catalysis for the Sustainable Energies
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Selective Catalysis for the Sustainable Energies

A special issue of Catalysts (ISSN 2073-4344). This special issue belongs to the section "Catalysis for Sustainable Energy".

Deadline for manuscript submissions: closed (31 July 2022) | Viewed by 8014

Special Issue Editors

Dr. Jehad Abed

E-Mail Website
Guest Editor
Materials Science and Engineering, University of Toronto, Toronto, ON MS5, Canada
Interests: water electrolysis; carbon dioxide electro-reduction; oxygen evolution reaction; materials discovery; high through-put experimentation; operando characterization; machine learning
Dr. Hatem M. A. Amin

E-Mail Website
Guest Editor
1. Analytical Chemistry II, Ruhr-University Bochum, 44801 Bochum, Germany
2. Chemistry Department, Faculty of Science, Cairo University, 12613 Giza, Egypt
Interests: electrocatalysis; heterogeneous catalysis; nanostructured catalysis; single particle electrochemistry; water electrolysis; fuel cell; metal-air batteries; lithium-ion batteries; transition metal oxides; nanoparticles synthesis; electrochemical sensors; corrosion; DEMS; in-situ and ex-situ surface characterization
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Mustapha Jouiad

E-Mail Website
Guest Editor
Laboratory of Physics of Condensed Matter (LPMC), University of Picardie Jules Verne, Scientific Pole, 33 Rue Saint-Leu, CEDEX 1, 80039 Amiens, France
Interests: nanomaterials for energy; multiscale characterization; water electrolysis
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This is a Special Issue focused on the advances in the development of materials and systems for the selective production of value-added chemicals by photo-electro-catalysis. This call includes both experimental and computational strategies to improve the overall performance of the catalytic reactions (reaction rate, product selectivity, durability, energy efficiency) by optimizing the physico-chemical properties of reaction components (catalyst, electrolyte, membrane), operating conditions, and reactor design. We are particularly interested in displacing petrochemical-derived production of chemicals with both photocatalysis and electrocatalysis powered by clean energy. We highly encourage submissions on the development of catalysts and systems for green hydrogen and ammonia production, CO2 and CO reduction, biomass conversion, and upgrading of hydrocarbons to high-value chemicals at industrial conditions.

Dr. Jehad Abed
Dr. Hatem M. A. Amin
Prof. Dr. Mustapha Jouiad
Guest Editors

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 submissions that pass pre-check are 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 2200 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

  • hydrogen evolution
  • oxygen evolution
  • oxygen reduction
  • biomass upgrading
  • CO2 reduction
  • CO reduction
  • N2 reduction
  • methane oxidation
  • ethylene oxidation
  • electrolyzers
  • photocatalysis
  • fuel cells
  • electrodes development
  • reactor design

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Published Papers (2 papers)

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Research

18 pages, 7602 KiB  
Article
Experimental and Theoretical Investigations of Low-Dimensional BiFeO3 System for Photocatalytic Applications
by Manal Benyoussef, Sébastien Saitzek, Nitul S. Rajput, Matthieu Courty, Mimoun El Marssi and Mustapha Jouiad
Catalysts 2022, 12(2), 215; https://doi.org/10.3390/catal12020215 - 12 Feb 2022
Cited by 20 | Viewed by 4355
Abstract
We report on the fabrication of sub-20 nm BiFeO3 (BFO) nanoparticles using a solid-state approach and preferential leching process. The nanoparticles were subsequently used to deposit, through spray pyrolysis, BFO thin films in a rhombohedral (R3c) crystallographic structure. Then, systematic investigations of [...] Read more.
We report on the fabrication of sub-20 nm BiFeO3 (BFO) nanoparticles using a solid-state approach and preferential leching process. The nanoparticles were subsequently used to deposit, through spray pyrolysis, BFO thin films in a rhombohedral (R3c) crystallographic structure. Then, systematic investigations of the optical and the photocatalytic properties were conducted to determine the effects of the particles size, the microstructure and the increased surface area on their catalytic performances. Especially, improved optical properties were observed, with an optical bandgap energy of 2.20 eV compared to reported 2.7 eV for the bulk system. In addition, high optical absorption was obtained in the UV–visible light region reaching up to 90% at 400 nm. The photoelectrochemical measurements revealed a high photocurrent density under visible light irradiation. Besides, density functional theory calculations were performed on both bulk and thin film BFO structures, revealing an interesting comparison of the electronic, magnetic, ferroelectric and optical properties for bulk and thin film BFO systems. Both theoretical and experimental findings show that the alignment of the band edges of BFO thin film is coherent with good photocatalytic water splitting potential, making them desirable photoanode materials. Full article
(This article belongs to the Special Issue Selective Catalysis for the Sustainable Energies)
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11 pages, 2543 KiB  
Article
Reduced Graphene Oxide Supported Cobalt-Calcium Phosphate Composite for Electrochemical Water Oxidation
by Keunyoung Lee, Wonseok Yang, Eunji Pyo, Hyebin Choi, Yeona Cha, Seonhong Lee, Chung Soo Kim, Dong-Kwon Lim and Ki-Young Kwon
Catalysts 2021, 11(8), 960; https://doi.org/10.3390/catal11080960 - 11 Aug 2021
Cited by 2 | Viewed by 2470
Abstract
We report the oxygen evolution reaction (OER) catalyst composed of cobalt–calcium phosphate on reduced graphene oxide (CoCaP/rGO). Our catalyst is prepared by the anodic electrolysis of calcium phosphate/rGO mixture loaded on indium-tin-oxide (ITO) in Co2+ aqueous solution. TEM, XPS and XRD experiments [...] Read more.
We report the oxygen evolution reaction (OER) catalyst composed of cobalt–calcium phosphate on reduced graphene oxide (CoCaP/rGO). Our catalyst is prepared by the anodic electrolysis of calcium phosphate/rGO mixture loaded on indium-tin-oxide (ITO) in Co2+ aqueous solution. TEM, XPS and XRD experiments confirm that the crystal phase of calcium phosphate (CaP) is transferred into an amorphous phase of calcium oxide with phosphate (5.06 at%) after anodic electrolysis. Additionally, the main cation component of calcium is replaced by cobalt ion. The current–voltage characteristics of CoCaP/rGO showed a shoulder peak at 1.10 V vs. NHE, which originated from Co2+ to higher oxidation states (Co3+ or Co4+) and a strong wave from water oxidation higher +1.16 V vs. NHE at neutral condition (pH 7). CoCaP and CoCaP/rGO showed 4.8 and 10 mA/cm2 at 0.47 V of overpotential, respectively. The enhanced OER catalytic activity of CoCaP/rGO arises from the synergetic interaction between the amorphous phase of CoCaP and electric conducting graphene sheets. Full article
(This article belongs to the Special Issue Selective Catalysis for the Sustainable Energies)
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