Frontiers in Functional Nanomaterials

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Synthesis, Interfaces and Nanostructures".

Deadline for manuscript submissions: closed (30 November 2021) | Viewed by 16502

Special Issue Editor


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Guest Editor
Sungkyunkwan University, Seobu-ro 2066, Jangan-gu, Suwon 16419, Republic of Korea
Interests: microporous organic polymer; battery; catalysts; drug delivery

Special Issue Information

Dear Colleagues,

During the last several decades, there has been a great number of research papers on the functional nanomaterials. The benefits of nano-engineering are various, including enhanced surface areas and unprecedented physical properties. In materials science field, new materials have continuously appeared and engineered to nano-regimes. For example, PbCsX3 type perovskites and high-entropy materials have attracted the recent attention of scientists and have been engineered to nano-regimes. The functional performance of new materials could be enhanced through the nano-engineering. The communications about the new functional nanomaterials will be exciting. In this regard, we designed the special issue “Frontiers in Functional Nanomaterials” that welcomes the submission of the works on the recent functional nanomaterials. We wish that this special Issue becomes a good and helpful platform for the communications of scientists.

Prof. Dr. Seung Uk Son
Guest Editor

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Keywords

  • New nano-energy material
  • New nanocatalyst
  • New nano-medicinal material
  • New functional nanomaterial

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Published Papers (5 papers)

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Research

12 pages, 5074 KiB  
Article
Silicon Nanosheets: An Emerging 2D Photonic Material with a Large Transient Nonlinear Optical Response beyond Graphene
by Michalis Stavrou, Aristeidis Stathis, Ioannis Papadakis, Alina Lyuleeva-Husemann, Emmanouel Koudoumas and Stelios Couris
Nanomaterials 2022, 12(1), 90; https://doi.org/10.3390/nano12010090 - 29 Dec 2021
Cited by 8 | Viewed by 3000
Abstract
The present work reports on the transient nonlinear optical (NLO) responses of two different types of 2D silicon nanosheets (SiNSs), namely hydride-terminated silicon nanosheets (SiNS–H) and 1-dodecene-functionalized silicon nanosheets (SiNS–dodecene). The main motivation of this study was to extend the knowledge regarding the [...] Read more.
The present work reports on the transient nonlinear optical (NLO) responses of two different types of 2D silicon nanosheets (SiNSs), namely hydride-terminated silicon nanosheets (SiNS–H) and 1-dodecene-functionalized silicon nanosheets (SiNS–dodecene). The main motivation of this study was to extend the knowledge regarding the NLO properties of these Si–based materials, for which very few published studies exist so far. For that purpose, the NLO responses of SiNS–H and SiNS–dodecene were investigated experimentally in the nanosecond regime at 532 and 1064 nm using the Z-scan technique, while the obtained results were compared to those of certain recently studied graphene nanosheets. SiNS–dodecene was found to exhibit the largest third-order susceptibility χ(3) values at both excitation wavelengths, most probably ascribed to the presence of point defects, indicating the importance of chemical functionalization for the efficient enhancement and tailoring of the NLO properties of these emerging 2D Si-based materials. Most importantly, the results demonstrated that the present silicon nanosheets revealed comparable and even larger NLO responses than graphene nanosheets. Undoubtedly, SiNSs could be strong competitors of graphene for applications in 2D-material-based photonics and optoelectronics. Full article
(This article belongs to the Special Issue Frontiers in Functional Nanomaterials)
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21 pages, 5063 KiB  
Article
Heat-Up Colloidal Synthesis of Shape-Controlled Cu-Se-S Nanostructures—Role of Precursor and Surfactant Reactivity and Performance in N2 Electroreduction
by Stefanos Mourdikoudis, George Antonaropoulos, Nikolas Antonatos, Marcos Rosado, Liudmyla Storozhuk, Mari Takahashi, Shinya Maenosono, Jan Luxa, Zdeněk Sofer, Belén Ballesteros, Nguyen Thi Kim Thanh and Alexandros Lappas
Nanomaterials 2021, 11(12), 3369; https://doi.org/10.3390/nano11123369 - 12 Dec 2021
Cited by 6 | Viewed by 3921
Abstract
Copper selenide-sulfide nanostructures were synthesized using metal-organic chemical routes in the presence of Cu- and Se-precursors as well as S-containing compounds. Our goal was first to examine if the initial Cu/Se 1:1 molar proportion in the starting reagents would always lead to equiatomic [...] Read more.
Copper selenide-sulfide nanostructures were synthesized using metal-organic chemical routes in the presence of Cu- and Se-precursors as well as S-containing compounds. Our goal was first to examine if the initial Cu/Se 1:1 molar proportion in the starting reagents would always lead to equiatomic composition in the final product, depending on other synthesis parameters which affect the reagents reactivity. Such reaction conditions were the types of precursors, surfactants and other reagents, as well as the synthesis temperature. The use of ‘hot-injection’ processes was avoided, focusing on ‘non-injection’ ones; that is, only heat-up protocols were employed, which have the advantage of simple operation and scalability. All reagents were mixed at room temperature followed by further heating to a selected high temperature. It was found that for samples with particles of bigger size and anisotropic shape the CuSe composition was favored, whereas particles with smaller size and spherical shape possessed a Cu2−xSe phase, especially when no sulfur was present. Apart from elemental Se, Al2Se3 was used as an efficient selenium source for the first time for the acquisition of copper selenide nanostructures. The use of dodecanethiol in the presence of trioctylphosphine and elemental Se promoted the incorporation of sulfur in the materials crystal lattice, leading to Cu-Se-S compositions. A variety of techniques were used to characterize the formed nanomaterials such as XRD, TEM, HRTEM, STEM-EDX, AFM and UV-Vis-NIR. Promising results, especially for thin anisotropic nanoplates for use as electrocatalysts in nitrogen reduction reaction (NRR), were obtained. Full article
(This article belongs to the Special Issue Frontiers in Functional Nanomaterials)
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17 pages, 4042 KiB  
Article
A Novel Approach to the Facile Growth and Organization of Photothermal Prussian Blue Nanocrystals on Different Surfaces
by Giang Ngo, Gautier Félix, Christophe Dorandeu, Jean-Marie Devoisselle, Luca Costa, Pierre-Emmanuel Milhiet, Yannick Guari, Joulia Larionova and Joël Chopineau
Nanomaterials 2021, 11(7), 1749; https://doi.org/10.3390/nano11071749 - 2 Jul 2021
Cited by 3 | Viewed by 2722
Abstract
We report here a novel “one-pot” approach for the controlled growth and organization of Prussian blue nanostructures on three different surfaces: pure Au0, cysteamine-functionalized Au0, and SiO2-supported lipid bilayers with different natures of lipids. We demonstrate that [...] Read more.
We report here a novel “one-pot” approach for the controlled growth and organization of Prussian blue nanostructures on three different surfaces: pure Au0, cysteamine-functionalized Au0, and SiO2-supported lipid bilayers with different natures of lipids. We demonstrate that fine control over the size, morphology, and the degree and homogeneity of the surface coverage by Prussian Blue (PB) nanostructures may be achieved by manipulating different parameters, which are the precursor concentration, the nature of the functional groups or the nature of lipids on the surfaces. This allows the growth of isolated PB nanopyramids and nanocubes or the design of thin dense films over centimeter square surfaces. The formation of unusual Prussian blue nanopyramids is discussed. Finally, we demonstrate, by using experimental techniques and theoretical modeling, that PB nanoparticles deposited on the gold surface exhibit strong photothermal properties, permitting a rapid temperature increase up to 90 °C with a conversion of the laser power of almost 50% for power source heat. Full article
(This article belongs to the Special Issue Frontiers in Functional Nanomaterials)
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12 pages, 2493 KiB  
Article
Chromogenic Chemodosimeter Based on Capped Silica Particles to Detect Spermine and Spermidine
by Mariana Barros, Alejandro López-Carrasco, Pedro Amorós, Salvador Gil, Pablo Gaviña, Margarita Parra, Jamal El Haskouri, Maria Carmen Terencio and Ana M. Costero
Nanomaterials 2021, 11(3), 818; https://doi.org/10.3390/nano11030818 - 23 Mar 2021
Cited by 3 | Viewed by 2740
Abstract
A new hybrid organic–inorganic material for sensing spermine (Spm) and spermidine (Spd) has been prepared and characterized. The material is based on MCM-41 particles functionalized with an N-hydroxysuccinimide derivative and loaded with Rhodamine 6G. The cargo is kept inside the porous material due [...] Read more.
A new hybrid organic–inorganic material for sensing spermine (Spm) and spermidine (Spd) has been prepared and characterized. The material is based on MCM-41 particles functionalized with an N-hydroxysuccinimide derivative and loaded with Rhodamine 6G. The cargo is kept inside the porous material due to the formation of a double layer of organic matter. The inner layer is covalently bound to the silica particles, while the external layer is formed through hydrogen and hydrophobic interactions. The limits of detection determined by fluorimetric titration are 27 µM and 45 µM for Spm and Spd, respectively. The sensor remains silent in the presence of other biologically important amines and is able to detect Spm and Spd in both aqueous solution and cells. Full article
(This article belongs to the Special Issue Frontiers in Functional Nanomaterials)
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11 pages, 3119 KiB  
Article
Hierarchical HZSM-5 for Catalytic Cracking of Oleic Acid to Biofuels
by Mahashanon Arumugam, Chee Keong Goh, Zulkarnain Zainal, Sugeng Triwahyono, Adam F. Lee, Karen Wilson and Yun Hin Taufiq-Yap
Nanomaterials 2021, 11(3), 747; https://doi.org/10.3390/nano11030747 - 16 Mar 2021
Cited by 16 | Viewed by 3253
Abstract
Solid acid catalyzed cracking of waste oil-derived fatty acids is an attractive route to hydrocarbon fuels. HZSM-5 is an effective acid catalyst for fatty acid cracking; however, its microporous nature is susceptible to rapid deactivation by coking. We report the synthesis and application [...] Read more.
Solid acid catalyzed cracking of waste oil-derived fatty acids is an attractive route to hydrocarbon fuels. HZSM-5 is an effective acid catalyst for fatty acid cracking; however, its microporous nature is susceptible to rapid deactivation by coking. We report the synthesis and application of hierarchical HZSM-5 (h-HZSM-5) in which silanization of pre-crystallized zeolite seeds is employed to introduce mesoporosity during the aggregation of growing crystallites. The resulting h-HZSM-5 comprises a disordered array of fused 10–20 nm crystallites and mesopores with a mean diameter of 13 nm, which maintain the high surface area and acidity of a conventional HZSM-5. Mesopores increase the yield of diesel range hydrocarbons obtained from oleic acid deoxygenation from ~20% to 65%, attributed to improved acid site accessibility within the hierarchical network. Full article
(This article belongs to the Special Issue Frontiers in Functional Nanomaterials)
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