Nanostructured Materials and Interfaces: Energy and Environmental Applications

A special issue of Coatings (ISSN 2079-6412). This special issue belongs to the section "Surface Engineering for Energy Harvesting, Conversion, and Storage".

Deadline for manuscript submissions: closed (31 December 2023) | Viewed by 914

Special Issue Editors


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Guest Editor
CENIMAT|i3N, Department of Materials Science, School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal
Interests: metal and metal oxide synthesis; microwave-assisted synthesis; green synthesis; photocatalysis; UV sensors; biosensors

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Guest Editor
CENIMAT|i3N, Department of Materials Science, School of Science and Technology, NOVA University Lisbon, 2829-516 Caparica, Portugal
Interests: material characterization; production and structural characterization of oxide-based thin films; oxide-based nanostructures; solution synthesis routes; microwave synthesis; photocatalysis; sensors
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Special Issue Information

Dear Colleagues,

Nanoparticles and nanostructured films have been one of the most active research areas over the last decade, with special attention drawn toward the design, synthesis, and characterization of efficient nanostructured coatings aiming for efficient and multifunctional applications in different areas, including energy and the environment.

The need for the sustainable exploitation of natural resources and correct energy management is urgent. Thus, pursuing the development of novel materials is of great relevance, with metals and metal oxides appearing as attractive options. These materials have interesting properties, and their application and performance depend directly on their nature, size, shape, surface area, etc.

Rapid and continuous industrial growth has resulted in severe energy and environmental issues over recent decades. Nanomaterial-based catalysis is expected to play an important role towards a sustainable and clean environment. These nanomaterials can present different compositions, structures, sizes, shapes, and morphologies, and can be widely used in various catalytic processes in environmental and energy fields, including the degradation of pollutant dyes, pharmaceuticals, pesticides, toxins, and heavy metals, CO2 reduction, H2 generation, water splitting, and fuel/solar cells. The development of highly efficient and cost-effective catalysts is of vital importance.

This Special Issue aims to give an overview of recent advances in metal and metal oxide nanostructures and nanostructured films that could contribute to water and air purification and energy production and saving, simultaneously maximizing the exploitation of our natural resources while protecting the environment. Original research article, review, and progress report submissions on theoretical and experimental results are also welcome.

Submissions are welcome in the following areas with relation (but not limited) to the synthesis and characterization of nanomaterials, nanostructured films, and hybrid nanostructured materials, applications of nanomaterials for the degradation of various types of pollutants (dyes, heavy metals, etc.), H2 generation, oxygen evolution reaction, CO2 reduction, water splitting, etc.

With the aim being energy and environmental applications, potential topics include, but are not limited to, the following:

  • Synthesis and properties of nanostructures;
  • Green synthesis of nanomaterials;
  • Metal and metal oxide nanoparticles and nanostructured films;
  • Photo and electro catalysis;
  • CO2 reduction;
  • H2 generation.

Dr. Ana Pimentel
Dr. Daniela Nunes
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. Coatings 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 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

  • metal and metal oxide nanostructures
  • green synthesis
  • catalysis
  • CO2 reduction
  • H2 generation
  • water splitting

Published Papers (1 paper)

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Research

12 pages, 5771 KiB  
Article
Stoichiometric and Nonstoichiometric Surface Structures of Pyrochlore Y2Zr2O7 and Their Relative Stabilities: A First-Principles Investigation
by Huajian Wu, Jianning Zhang, Yiren Wang, Jiacheng Shang and Yong Jiang
Coatings 2023, 13(7), 1203; https://doi.org/10.3390/coatings13071203 - 5 Jul 2023
Viewed by 695
Abstract
First-principle total energy calculations were performed to investigate the atomic structures and relative stabilities of two low miller-index surfaces of pyrochlore Y2Zr2O7. The stoichiometric Y2Zr2O7 (110) and (100) surfaces were predicted, with [...] Read more.
First-principle total energy calculations were performed to investigate the atomic structures and relative stabilities of two low miller-index surfaces of pyrochlore Y2Zr2O7. The stoichiometric Y2Zr2O7 (110) and (100) surfaces were predicted, with lowest formation energies of 1.20 and 1.47 J/m2, respectively. Based on a thermodynamic defect model, non-stoichiometric Y2Zr2O7 surface energies were further evaluated as a function of environmental oxygen partial pressure (pO2) and temperature (T). With all of the results, we were able to construct the surface phase diagrams for T = 300 and 1400 K. The strong correlation between the structural stabilities and the surface stoichiometry was revealed as varying T and pO2. At a given T, the most stable termination of the (110) surfaces would change from a (Y,Zr)−rich (ns−2Y2Zr6O) to O−rich ones (ns−4O_2 and ns−4O_1) as increasing pO2, while that of the (100) surfaces would change from the stoichiometric (stoi−1Y1Zr_1) to the O−rich one (ns−5O). The critical pO2 value for termination transition moves to its higher end as increasing T. Full article
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