Special Issue "Novel Nanomaterials for Applications in Energy and Catalysis"

A special issue of Nanomaterials (ISSN 2079-4991).

Deadline for manuscript submissions: 20 April 2020.

Special Issue Editor

Prof. Anna Klinkova
E-Mail Website
Guest Editor
University of Waterloo, Department of Chemistry, Waterloo, Canada
Interests: nanomaterial synthesis; nanocrystal shape control; nanoparticle self-assembly; nanocatalysis; CO2 electroreduction; electroorganic synthesis; plasmonics

Special Issue Information

Dear Colleagues,

With an increasing worldwide energy demand and a growing need to protect our environment, the development of technologies for green-energy production and storage, renewable fuels, and closing the carbon cycle is of tremendous interest to the research community. Nanomaterials have shown breakthrough performance and potential for these applications due to nanoscale surface morphology and quantum confinement effects enabling their chemical reactivity and selectivity, catalytic behavior, and light-driven properties.

With the nanomaterial prospective for our global energy and sustainability challenges in mind, this Special Issue focuses on nanomaterials and nanocatalysts for energy storage and production, including:

1. (Photo)electrochemical hydrogen production catalysts;
2. Photo- and electrocatalysts for conversion of CO2 into fuels;
3. Nanomaterials for gas-to-liquid and power-to-X conversion technologies;
4. Materials for fuel cells;
5. Materials for photovoltaics;
6. Materials for batteries.

We invite authors to contribute original research and communication articles or comprehensive review articles covering the most recent progress and new developments in the design and utilization of nanomaterials for these photo-, electrochemical, and catalytic processes, which are relevant to applications in renewable energy and sustainability.

Prof. Anna Klinkova
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 papers will be 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. Nanomaterials 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 1600 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

  • nanocatalysis
  • hydrogen evolution reaction
  • dehydrogenation
  • CO2 reduction
  • renewable fuels
  • fuel cells
  • photovoltaics
  • solar cells
  • batteries

Published Papers (3 papers)

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Research

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Open AccessArticle
Reductive and Coordinative Effects of Hydrazine in Structural Transformations of Copper Hydroxide Nanoparticles
Nanomaterials 2019, 9(10), 1445; https://doi.org/10.3390/nano9101445 - 11 Oct 2019
Abstract
Shape-specific copper oxide nanostructures have attracted increasing attention due to their widespread applications in energy conversion, sensing, and catalysis. Advancing our understanding of structure, composition, and surface chemistry transformations in shaped copper oxide nanomaterials during changes in copper oxidation state is instrumental from [...] Read more.
Shape-specific copper oxide nanostructures have attracted increasing attention due to their widespread applications in energy conversion, sensing, and catalysis. Advancing our understanding of structure, composition, and surface chemistry transformations in shaped copper oxide nanomaterials during changes in copper oxidation state is instrumental from both applications and preparative nanochemistry standpoints. Here, we report the study of structural and compositional evolution of amorphous copper (II) hydroxide nanoparticles under hydrazine reduction conditions that resulted in the formation of crystalline Cu2O and composite Cu2O-N2H4 branched particles. The structure of the latter was influenced by the solvent medium. We showed that hydrazine, while being a common reducing agent in nanochemistry, can not only reduce the metal ions but also coordinate to them as a bidentate ligand and thereby integrate within the lattice of a particle. In addition to shape and composition transformation of individual particles, concurrent interparticle attachment and ensemble shape evolution were induced by depleting surface stabilization of individual nanoparticles. Not only does this study provide a facile synthetic method for several copper (I) oxide structures, it also demonstrates the complex behavior of a reducing agent with multidentate coordinating ability in nanoparticle synthesis. Full article
(This article belongs to the Special Issue Novel Nanomaterials for Applications in Energy and Catalysis)
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Open AccessCommunication
A Facile Method for Preparing UiO-66 Encapsulated Ru Catalyst and its Application in Plasma-Assisted CO2 Methanation
Nanomaterials 2019, 9(10), 1432; https://doi.org/10.3390/nano9101432 - 10 Oct 2019
Abstract
With increasing applications of metal-organic frameworks (MOFs) in the field of gas separation and catalysis, the preparation and performance research of encapsulating metal nanoparticles (NPs) into MOFs ([email protected]) have attracted extensive attention recently. Herein, an [email protected] catalyst is prepared by a one-step method. [...] Read more.
With increasing applications of metal-organic frameworks (MOFs) in the field of gas separation and catalysis, the preparation and performance research of encapsulating metal nanoparticles (NPs) into MOFs ([email protected]) have attracted extensive attention recently. Herein, an [email protected] catalyst is prepared by a one-step method. Ru NPs are encapsulated in situ in the UiO-66 skeleton structure during the synthesis of UiO-66 metal-organic framework via a solvothermal method, and its catalytic activity for CO2 methanation with the synergy of cold plasma is studied. The crystallinity and structural integrity of UiO-66 is maintained after encapsulating Ru NPs according to the X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). As illustrated by X-ray photoelectron spectroscopy (XPS), high resolution transmission electron microscopy (HRTEM), and mapping analysis, the Ru species of the hydration ruthenium trichloride precursor are reduced to metallic Ru NPs without additional reducing processes during the synthesis of [email protected], and the Ru NPs are uniformly distributed inside the [email protected] Thermogravimetric analysis (TGA) and N2 sorption analysis show that the specific surface area and thermal stability of [email protected] decrease slightly compared with that of UiO-66 and was ascribed to the encapsulation of Ru NPs in the UiO-66 skeleton. The results of plasma-assisted catalytic CO2 methanation indicate that [email protected] exhibits excellent catalytic activity. CO2 conversion and CH4 selectivity over [email protected] reached 72.2% and 95.4% under 13.0 W of discharge power and a 30 mL·min−1 gas flow rate ( V H 2 : V C O 2 = 4 : 1 ), respectively. Both values are significantly higher than pure UiO-66 with plasma and Ru/Al2O3 with plasma. The enhanced performance of [email protected] is attributed to its unique framework structure and excellent dispersion of Ru NPs. Full article
(This article belongs to the Special Issue Novel Nanomaterials for Applications in Energy and Catalysis)
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Review

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Open AccessReview
Synthesis and Electrochemical Energy Storage Applications of Micro/Nanostructured Spherical Materials
Nanomaterials 2019, 9(9), 1207; https://doi.org/10.3390/nano9091207 - 27 Aug 2019
Abstract
Micro/nanostructured spherical materials have been widely explored for electrochemical energy storage due to their exceptional properties, which have also been summarized based on electrode type and material composition. The increased complexity of spherical structures has increased the feasibility of modulating their properties, thereby [...] Read more.
Micro/nanostructured spherical materials have been widely explored for electrochemical energy storage due to their exceptional properties, which have also been summarized based on electrode type and material composition. The increased complexity of spherical structures has increased the feasibility of modulating their properties, thereby improving their performance compared with simple spherical structures. This paper comprehensively reviews the synthesis and electrochemical energy storage applications of micro/nanostructured spherical materials. After a brief classification, the concepts and syntheses of micro/nanostructured spherical materials are described in detail, which include hollow, core-shelled, yolk-shelled, double-shelled, and multi-shelled spheres. We then introduce strategies classified into hard-, soft-, and self-templating methods for synthesis of these spherical structures, and also include the concepts of synthetic methodologies. Thereafter, we discuss their applications as electrode materials for lithium-ion batteries and supercapacitors, and sulfur hosts for lithium–sulfur batteries. The superiority of multi-shelled hollow micro/nanospheres for electrochemical energy storage applications is particularly summarized. Subsequently, we conclude this review by presenting the challenges, development, highlights, and future directions of the micro/nanostructured spherical materials for electrochemical energy storage. Full article
(This article belongs to the Special Issue Novel Nanomaterials for Applications in Energy and Catalysis)
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