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Advances in Transition Metal Oxides for Energy- and Electronic-Related Applications
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Advances in Transition Metal Oxides for Energy- and Electronic-Related Applications

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Advanced Nanomaterials and Nanotechnology".

Deadline for manuscript submissions: 20 July 2024 | Viewed by 962

Special Issue Editor

Dr. Bartolomeu Cruz Viana

E-Mail Website
Guest Editor
Department of Physics, Federal University of Piaui, Teresina 64049-550, Brazil
Interests: oxides; transition metals; nanomaterials; nanoparticles; energy
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Transition metal oxides have a wide range of applications in energy- and electronic-related fields due to their intrinsic electronic, magnetic, and catalytic properties. They have applications in batteries, solar cells, fuel cells, gas sensors, electrochromic devices, and hydrogen electrode production or harvesting. Nanomaterials can improve the properties of the bulk counterparts. Overall, transition metal oxides have shown great potential in energy- and electronic-related applications due to their unique properties and versatility in various fields. Thus, we would like to receive works that can contribute to the evolution of new devices in energy and electronic applications.

Dr. Bartolomeu Cruz Viana
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 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. Materials is an international peer-reviewed open access semimonthly 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 2600 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

  • oxides
  • transition metals
  • nanomaterials
  • nanoparticles
  • energy

Published Papers (1 paper)

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Research

18 pages, 4320 KiB  
Article
Photocatalytic Activity of N-Doped ZrO2 Thin Films Determined by Direct and Indirect Irradiation
by Carmen Mita, Nicoleta Cornei, Mariana Frenti, Georgiana Bulai, Marius Dobromir, Vasile Tiron, Aleksandr S. Doroshkevich and Diana Mardare
Materials 2023, 16(17), 5901; https://doi.org/10.3390/ma16175901 - 29 Aug 2023
Viewed by 640
Abstract
In this paper, we investigate the decomposition of a toxic organic compound, Rhodamine B, by the photocatalytic activities of undoped and nitrogen-doped ZrO2 thin films, deposited using the HiPIMS technique. The investigation was performed in the presence and in the absence of [...] Read more.
In this paper, we investigate the decomposition of a toxic organic compound, Rhodamine B, by the photocatalytic activities of undoped and nitrogen-doped ZrO2 thin films, deposited using the HiPIMS technique. The investigation was performed in the presence and in the absence of H2O2, for two types of experimental arrangements: the irradiation of the films, followed by dipping them in the Rhodamine B solutions, and the irradiation of the films dipped in the solution. The two situations were named “direct irradiation” and “indirect irradiation”, respectively. Methods like XRD, AFM, XPS, DRS, water/film surface contact angle, and spectrophotometry were used to obtain information on the films’ structure, surface morphology, elemental composition of the films surface, optical band gap, hydrophilicity, and photocatalytic activity, respectively. All these properties were described and correlated. By N-doping ZrO2, the films become absorbent in the visible domain, so that the solar light could be efficiently used; the films’ hydrophilic properties improve, which is an important fact in self-cleaning applications; and the films’ photocatalytic activity for the decomposition of Rhodamine B becomes better. The addition of hydrogen peroxide acted as an inhibitor for all systems and not as an accelerator of the photocatalytic reactions as expected. Full article
(This article belongs to the Special Issue Advances in Transition Metal Oxides for Energy- and Electronic-Related Applications)
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