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Molecules
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Design and Synthesis of Functional Nanomaterials
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Design and Synthesis of Functional Nanomaterials

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Nanochemistry".

Deadline for manuscript submissions: closed (1 December 2019) | Viewed by 24476

Special Issue Editor

Dr. Titel Jurca

E-Mail Website
Guest Editor
Department of Chemistry & The Energy Conversion and Propulsion Cluster, University of Central Florida, Orlando, FL, USA
Interests: inorganic chemistry; synthesis; homogeneous catalysis; heterogeneous catalysis; nanoparticles; atomic layer deposition; chemical vapor deposition; thin films

Special Issue Information

Dear Colleagues,

Nanomaterials, broadly classed as materials with structural features on the nanometer scale in at least one dimension, can be leveraged for a broad range of applications, spanning diverse examples such as device fabrication, catalysis, biology, medicine, and environmental science; underpinning what we refer to as nanotechnology. Under such size constraints, physical properties can be influenced not only by the chemical constitution, but also by the spatial confinement of electronic states. Thus, the synthesis of nanomaterials is inherently linked to a broad parameter space encompassing the design of both chemical precursors and growth techniques to yield materials of desired chemical composition with precisely tailored size and shape.

This Special Issue invites original contributions from our colleagues working in the areas of functional nanomaterials synthesis, broadly defined. Manuscripts in the form of short communications, full research articles and reviews on exciting recent developments in all areas of functional nanomaterials synthesis, including theoretical works on design principles, are welcomed. Contributions that explore the effects of chemical precursors, and/or material growth conditions, with resulting structure/activity or functionality relationships are particularly encouraged.

Dr. Titel Jurca
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. Molecules 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 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

  • Functional nanomaterials
  • Nanomaterial synthesis
  • Nanoparticles
  • Nanoparticle synthesis
  • Nanostructured materials
  • Nanotechnology
  • Heterogeneous catalysis
  • Surface functionalization
  • Nanomaterial design
  • Chemical precursors for nanomaterials

Published Papers (4 papers)

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Research

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16 pages, 13182 KiB  
Article
Photochromic and Photocatalytic Properties of Ultra-Small PVP-Stabilized WO3 Nanoparticles
by Daniil A. Kozlov, Alexander B. Shcherbakov, Taisiya O. Kozlova, Borislav Angelov, Gennady P. Kopitsa, Alexey V. Garshev, Alexander E. Baranchikov, Olga S. Ivanova and Vladimir K. Ivanov
Molecules 2020, 25(1), 154; https://0-doi-org.brum.beds.ac.uk/10.3390/molecules25010154 - 30 Dec 2019
Cited by 13 | Viewed by 4302
Abstract
Tungsten oxide-based bulk and nanocrystalline materials are widely used as photocatalytic and photo- and electrochromic materials, as well as materials for biomedical applications. In our work, we focused our attention on the effect of sodium cations on the structure and photochromic properties of [...] Read more.
Tungsten oxide-based bulk and nanocrystalline materials are widely used as photocatalytic and photo- and electrochromic materials, as well as materials for biomedical applications. In our work, we focused our attention on the effect of sodium cations on the structure and photochromic properties of the WO3@PVP aqueous sols. To establish the effect, the sols were synthesized by either simple pH adjusting of sodium or ammonium tungstates’ solutions, or using an ion exchange technique to remove the cations from the materials to the greatest possible extent. We showed that the presence of sodium cations in WO3@PVP favors the formation of reduced tungsten species (W+5) upon UV irradiation of the materials, strongly affecting their photochromic and photocatalytic properties. The pronounced photoreductive properties of WO3@PVP sols in photocatalytic reactions were demonstrated. Due to photoreductive properties, photochromic sols of tungsten oxide can act as effective photoprotectors in photooxidation processes. We believe that our work provides a considerable contribution to the elucidation of photochromic and redox phenomena in WO3-based materials. Full article
(This article belongs to the Special Issue Design and Synthesis of Functional Nanomaterials)
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19 pages, 8740 KiB  
Article
A Combined Mechanochemical and Calcination Route to Mixed Cobalt Oxides for the Selective Catalytic Reduction of Nitrophenols
by Lorianne R. Shultz, Bryan McCullough, Wesley J. Newsome, Haider Ali, Thomas E. Shaw, Kristopher O. Davis, Fernando J. Uribe-Romo, Matthieu Baudelet and Titel Jurca
Molecules 2020, 25(1), 89; https://0-doi-org.brum.beds.ac.uk/10.3390/molecules25010089 - 25 Dec 2019
Cited by 15 | Viewed by 6210
Abstract
Para-, or 4-nitrophenol, and related nitroaromatics are broadly used compounds in industrial processes and as a result are among the most common anthropogenic pollutants in aqueous industrial effluent; this requires development of practical remediation strategies. Their catalytic reduction to the less toxic and [...] Read more.
Para-, or 4-nitrophenol, and related nitroaromatics are broadly used compounds in industrial processes and as a result are among the most common anthropogenic pollutants in aqueous industrial effluent; this requires development of practical remediation strategies. Their catalytic reduction to the less toxic and synthetically desirable aminophenols is one strategy. However, to date, the majority of work focuses on catalysts based on precisely tailored, and often noble metal-based nanoparticles. The cost of such systems hampers practical, larger scale application. We report a facile route to bulk cobalt oxide-based materials, via a combined mechanochemical and calcination approach. Vibratory ball milling of CoCl2(H2O)6 with KOH, and subsequent calcination afforded three cobalt oxide-based materials with different combinations of CoO(OH), Co(OH)2, and Co3O4 with different crystallite domains/sizes and surface areas; Co@100, Co@350 and Co@600 (Co@###; # = calcination temp). All three prove active for the catalytic reduction of 4-nitrophenol and related aminonitrophenols. In the case of 4-nitrophenol, Co@350 proved to be the most active catalyst, therein its retention of activity over prolonged exposure to air, moisture, and reducing environments, and applicability in flow processes is demonstrated. Full article
(This article belongs to the Special Issue Design and Synthesis of Functional Nanomaterials)
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13 pages, 2753 KiB  
Article
Electrochemical Properties of Carbon Aerogel Electrodes: Dependence on Synthesis Temperature
by Alena N. Malkova, Nataliya A. Sipyagina, Inna O. Gozhikova, Yury A. Dobrovolsky, Dmitry V. Konev, Alexander E. Baranchikov, Olga S. Ivanova, Alexander E. Ukshe and Sergey A. Lermontov
Molecules 2019, 24(21), 3847; https://0-doi-org.brum.beds.ac.uk/10.3390/molecules24213847 - 25 Oct 2019
Cited by 14 | Viewed by 2825
Abstract
A series of carbon aerogels (C-AGs) were prepared by the pyrolysis of resorcinol-formaldehyde aerogels at 700–1100 °C as potential supercapacitor electrodes, and their texture and electrochemical properties were determined. The specific surface area of all C-AGs was in the range of 700–760 m [...] Read more.
A series of carbon aerogels (C-AGs) were prepared by the pyrolysis of resorcinol-formaldehyde aerogels at 700–1100 °C as potential supercapacitor electrodes, and their texture and electrochemical properties were determined. The specific surface area of all C-AGs was in the range of 700–760 m2/g, their electron conductivity increased linearly from 0.4 to 4.46 S/cm with an increase of the pyrolysis temperature. The specific capacitance of electrode material based on C-AGs reached 100 F/g in sulfuric acid and could be realized at a 2 A/g charge-discharge current, which makes it possible to use carbon aerogels as electrode materials. Full article
(This article belongs to the Special Issue Design and Synthesis of Functional Nanomaterials)
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Review

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26 pages, 18067 KiB  
Review
Nanostructured MoO3 for Efficient Energy and Environmental Catalysis
by Yuhua Zhu, Yuan Yao, Zhu Luo, Chuanqi Pan, Ji Yang, Yarong Fang, Hongtao Deng, Changxiang Liu, Qi Tan, Fudong Liu and Yanbing Guo
Molecules 2020, 25(1), 18; https://0-doi-org.brum.beds.ac.uk/10.3390/molecules25010018 - 19 Dec 2019
Cited by 70 | Viewed by 10688
Abstract
This paper mainly focuses on the application of nanostructured MoO3 materials in both energy and environmental catalysis fields. MoO3 has wide tunability in bandgap, a unique semiconducting structure, and multiple valence states. Due to the natural advantage, it can be used [...] Read more.
This paper mainly focuses on the application of nanostructured MoO3 materials in both energy and environmental catalysis fields. MoO3 has wide tunability in bandgap, a unique semiconducting structure, and multiple valence states. Due to the natural advantage, it can be used as a high-activity metal oxide catalyst, can serve as an excellent support material, and provide opportunities to replace noble metal catalysts, thus having broad application prospects in catalysis. Herein, we comprehensively summarize the crystal structure and properties of nanostructured MoO3 and highlight the recent significant research advancements in energy and environmental catalysis. Several current challenges and perspective research directions based on nanostructured MoO3 are also discussed. Full article
(This article belongs to the Special Issue Design and Synthesis of Functional Nanomaterials)
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