Advancement in Gas Adsorption Capacity, Optical and Catalytic Applications of Supramolecular Systems or Hybrid Materials

A special issue of Catalysts (ISSN 2073-4344). This special issue belongs to the section "Catalytic Materials".

Deadline for manuscript submissions: closed (10 July 2024) | Viewed by 6351

Special Issue Editors


E-Mail Website
Guest Editor
Dipartimento di Scienze Chimiche, Università di Catania, Viale A. Doria 6, 95125 Catania, Italy
Interests: self-assembly; functional materials; monolayers; metal oxides; hybrid materials; nanoparticles; nanostructures; X-ray photoelectron spectroscopy

E-Mail Website
Co-Guest Editor
Department of Drug and Health Sciences and Department of Chemical Sciences, University of Catania, Viale A. Doria 6, 95125 Catania, Italy
Interests: hybrid materials; organic synthesis; supramolecular chemistry; gas adsorption; computational chemistry; molecular modeling; computational studies of reaction mechanisms; molecular docking; 1,3-dipolar cycloadditions

Special Issue Information

Dear Colleagues,

Advancements in materials nanotechnology science have led researchers to analyze and "mimic" nature to synthesize new materials at the atomic, molecular, and macromolecular scales through the controlled assembly of building blocks at the nanoscale. The particular optical, electronic, magnetic, mechanical, or chemical properties of such nanostructures are due to their size, composition, and shape, which differ drastically from those of bulk materials. In the same way, supramolecular chemistry is inspired by nature to discover new systems capable of catalyzing complex reactions as, for example, enzymes do in nature. Indeed, multifunctional systems and nanostructured materials with tunable morphologies (e.g., nanoparticles, nanowires, nanofibers, nanotubes, nanosponges, etc.) show novel and specific properties and functions of exceptional interest, in virtue of their unique architectures, tailored physico-chemical features, making them materials of a central role in various applications, such as optoelectronics, biosensing, drug delivery, imaging, catalysis, etc.

In this context, the assembly of hybrid nanostructures (those formed from the combination of two or more different materials) is well-suited regarding the fabrication of functional nanostructures showing structural control (in terms of the ability to direct the formation of large assemblies in solution and in the solid-state), peculiar and appealing properties, e.g., optical, electronic or catalytic properties, in the perspective of their applications in different areas. Indeed, the resulting hybrid nanomaterial is not a simple mixture of its components, but a synergistic system in which, in addition to a simple combination of properties, novel distinctive and enhanced properties may be expected due to the interactions at the interface between the components at the molecular or supramolecular level.

Based on the above considerations, this Special Issue titled “Advancement in Gas Adsorption Capacity, Optical and/or Catalytic Applications of Supramolecular Systems or Hybrid Materials” welcomes submissions in the form of original research papers, reviews, or communications highlighting the state of research in the synthesis and applications of supramolecular systems or hybrid nanomaterials with applications in the fields of catalysis, gas adsorption, optoelectronics, nanomedicine, biosensing, energy storage, and solar energy. Through the use of characterization techniques such as X-ray photoelectron spectroscopy, nuclear magnetic resonance spectroscopy, fluorescence spectroscopy, scanning and transmission electron microscopy, etc., this Special Issue seeks to embrace more areas of chemistry with the aim of inspiring an increasingly transversal and multidisciplinary research thought.

Dr. Luca Spitaleri
Dr. Vincenzo Patamia
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. Catalysts 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 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

  • hybrid materials
  • supramolecular chemistry
  • metal oxides
  • nanostructures
  • gas adsorption
  • self-assembly
  • photocatalysis
  • plasmonic
  • luminescence
  • X-ray photoelectron spectroscopy
  • nuclear magnetic resonance spectroscopy
  • fluorescence spectroscopy
  • transmission electron microscopy
  • scanning electron microscopy

Published Papers (3 papers)

Order results
Result details
Select all
Export citation of selected articles as:

Research

11 pages, 3461 KiB  
Article
Carbamoyl-Decorated Cyclodextrins for Carbon Dioxide Adsorption
by Vincenzo Patamia, Rosario Tomarchio, Roberto Fiorenza, Chiara Zagni, Salvatore Scirè, Giuseppe Floresta and Antonio Rescifina
Catalysts 2023, 13(1), 41; https://doi.org/10.3390/catal13010041 - 25 Dec 2022
Cited by 8 | Viewed by 1670
Abstract
Advances in materials science and technology have prompted researchers to look to nature for new high-performance, low-cost materials. Among these, cyclodextrins have been widely used as a material in industrial applications. Inspired by previous work by our research group that led to the [...] Read more.
Advances in materials science and technology have prompted researchers to look to nature for new high-performance, low-cost materials. Among these, cyclodextrins have been widely used as a material in industrial applications. Inspired by previous work by our research group that led to the functionalization of cucurbit[6]uryl and its conversion into supramolecular nanospheres with good CO2 adsorption capacity, this work aims to improve the ability of cyclodextrins to capture CO2 by functionalizing them with amide groups. Carbon dioxide adsorption experiments on functionalized cyclodextrins showed an adsorption capacity similar to that of BEA zeolite, a material currently used in the industry for gas adsorption. Moreover, these adsorption properties could also be exploited to improve the adsorption capacity of drugs, a field in which cyclodextrins are widely used. The new cyclodextrin molecules were characterized by nuclear magnetic resonance spectroscopy and mass spectrometry, thanks to which we could determine the degree of functionalization of the new macrocycles. In addition, using Fourier-transform infrared spectroscopy, we demonstrated the presence and interaction of carbon dioxide adsorbed by the material, whereas an in silico study confirmed the chemisorption as the principal adsorption process, as experimentally inferred using the pseudo-second-order (PSO) kinetic model. Full article
Show Figures

Graphical abstract

23 pages, 7933 KiB  
Article
Modeling and Investigation of an Industrial Dehydration and Hydrocarbon-Removal Process by Temperature Swing Adsorption
by Hossein Ghasemzadeh, Mehdi Mehrpooya, Fathollah Pourfayaz, Azad Jarrahian and Mohammad Reza Ganjali
Catalysts 2022, 12(12), 1509; https://doi.org/10.3390/catal12121509 - 24 Nov 2022
Viewed by 1959
Abstract
In this study, a water- and heavy hydrocarbon-removal process of a natural gas refinery currently in operation using the temperature swing adsorption method is modeled and investigated. The aim of this process is to decrease the hydrocarbon dew point to −10 °C and [...] Read more.
In this study, a water- and heavy hydrocarbon-removal process of a natural gas refinery currently in operation using the temperature swing adsorption method is modeled and investigated. The aim of this process is to decrease the hydrocarbon dew point to −10 °C and diminish the water content of the gas to about 0.1 ppm. This unit consists of four beds with two layers in which two beds are in the adsorption state, while the others are kept in the regeneration state. The gas composition and the bed specification are obtained from the available data from the refinery. The Ergun equation is considered for the pressure drop calculation. The results show that the developed model can predict the outputs with good accuracy. Sensitivity analysis of operating condition parameters such as temperature, pressure, and regeneration gas flowrate are carried out. Analysis of the regeneration temperature proved that temperature reduction from 268 °C to 210 °C can improve recovery of the heavy components. In addition, the regeneration gas flow rate can be reduced to about 0.4 kmole·s−1 as an optimum value. Moreover, 303 to 310 °C is the optimum range for the feed temperature. Due to the presence of the air cooler in the upstream process, and according to the ambient air temperature, feed temperature can be decreased to obtain better results. Full article
Show Figures

Figure 1

13 pages, 4855 KiB  
Article
Hybrid Composite of Subnanometer CoPd Cluster-Decorated Cobalt Oxide-Supported Pd Nanoparticles Give Outstanding CO Production Yield in CO2 Reduction Reaction
by Che Yan, Dinesh Bhalothia, Shou-Shiun Yang, Amisha Beniwal, You-Xun Chang, Pin-Chieh Wang, Yu-Chia Cheng, Chi-Liang Chen, Shun-Chi Wu and Tsan-Yao Chen
Catalysts 2022, 12(10), 1127; https://doi.org/10.3390/catal12101127 - 27 Sep 2022
Cited by 5 | Viewed by 2075
Abstract
Catalytic carbon dioxide (CO2) hydrogenation to carbon monoxide (CO) via reverse water-gas shift (RWGS) reaction is of particular interest due to its direct use in various industrial processes as feedstock. However, the competitive CO2 methanation process severely limits the RWGS [...] Read more.
Catalytic carbon dioxide (CO2) hydrogenation to carbon monoxide (CO) via reverse water-gas shift (RWGS) reaction is of particular interest due to its direct use in various industrial processes as feedstock. However, the competitive CO2 methanation process severely limits the RWGS reaction in a lower temperature range. In this context, we propose a novel nanocatalyst (NC) comprising oxygen vacancy-enriched subnanometer-scale CoPd hybrid cluster (CoOxVPd)-anchored Pd nanoparticles (NPs) on cobalt oxide support underneath (denoted as CP-CoOxVPd) by using a galvanic replacement reaction-assisted wet chemical reduction method. As-developed CP-CoOxVPd NC initiated the RWGS reaction at 423 K temperature while showing an optimum CO production yield of ∼3414 μmol g−1catalyst and a CO selectivity as high as ∼99% at 523 K in the reaction gas of CO2:H2 = 1:3. The results of physical characterizations along with electrochemical and gas chromatography (GC) suggest that abundant oxygen vacancies in the surface-anchored CoOxVPd clusters are vital for CO2 adsorption and subsequent activation, while neighboring Pd domains facilitate the H2 dissociation. The obtained results are expected to provide a feasible design of Co-based NCs for the RWGS reaction. Full article
Show Figures

Figure 1

Back to TopTop