Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
5.2
3.4
Journals
Materials
Special Issues
New Insight into Microporous and Mesoporous Materials
materials-logo
Submit to Materials Review for Materials Propose a Special Issue

Journal Menu

► Journal Menu

Journal Browser

► Journal Browser
share announcement

New Insight into Microporous and Mesoporous Materials

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Porous Materials".

Deadline for manuscript submissions: closed (31 December 2020) | Viewed by 12827

Special Issue Editors

Prof. Dr. Agustín Francisco Pérez-Cadenas

E-Mail Website
Guest Editor
Department of Inorganic Chemistry, University of Granada, Granada, Spain
Interests: carbon materials; carbon metal composites; carbon gels; photo-catalysis; electro-catalysis; catalytic combustion; hydrogenation reactions; advanced oxidation processes
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Francisco Carrasco-Marín

E-Mail Website1 Website2
Guest Editor
Department of Inorganic Chemistry, University of Granada, Granada, Spain
Interests: carbon materials; energy materials; electro-catalysis; energy storage; supercapacitors; heterogeneous catalysis; green chemistry and environmental chemistry
Special Issues, Collections and Topics in MDPI journals
Dr. Sergio Morales-Torres

E-Mail Website
Guest Editor
Department of Inorganic Chemistry, University of Granada, Granada, Spain
Interests: carbon nanostructures; graphene; nanostructured metal oxide; structured catalysts and membranes; chemical functionalization; advanced oxidation processes; air/water treatment; desalination
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Microporous and mesoporous materials are one of the most versatile materials in the world, since they are used in many applications, in adsorption processes (decoloration, pollutant removal, etc.), as heterogeneous catalysts, and as catalyst supports, as well as in electrocatalysis and energy storage. They can be obtained from many different raw materials, and their pore volume and size distribution can be tuned with subtle modifications of the synthesis experimental conditions many times. Although these materials have been used for a long time, today, the interest in their improvement is still at its peak, manifesting in attempts to specially fit pore size and shape and the pore size distribution to specific applications. On the other hand, the design of the chemical surface of these pores is crucial, and for this reason, a good combination of pore shape and size together with an adequate chemical surface is the major goal in the preparation of many advanced materials. The chemical characteristics can be modified, doping the structural material with heteroatoms or by coating, or deposition of a second material phase.

This Special Issue will deal with the recent advances in microporous and mesoporous materials design, preparation, and/or applications. Different synthesis procedures, characterization techniques, and applications for these functional materials will be covered, and novel insights can be proposed.

It is our pleasure to invite you to submit a manuscript for this Special Issue. Full papers, short communications, and reviews are welcome.

Prof. Dr. Agustín F. Pérez-Cadenas
Prof. Dr. Francisco Carrasco-Marín
Dr. Sergio Morales-Torres
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. Materials 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 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

  • microporous materials
  • mesoporous materials
  • carbon materials
  • MOF
  • zeolites
  • polymers
  • composites
  • mesoporous oxides
  • pore surface chemistry
  • adsorption
  • catalytic applications
  • environmental applications
  • electrodes
  • energy storage

Published Papers (5 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

16 pages, 4856 KiB  
Article
Nickel Cobaltite Functionalized Silver Doped Carbon Xerogels as Efficient Electrode Materials for High Performance Symmetric Supercapacitor
by Madlin A. Wasfey, Abdalla Abdelwahab, Francisco Carrasco-Marín, Agustín F. Pérez-Cadenas, H. H Abdullah, I. S. Yahia and Ahmed Ali Farghali
Materials 2020, 13(21), 4906; https://doi.org/10.3390/ma13214906 - 31 Oct 2020
Cited by 20 | Viewed by 2594
Abstract
Introducing new inexpensive materials for supercapacitors application with high energy density and stability, is the current research challenge. In this work, Silver doped carbon xerogels have been synthesized via a simple sol-gel method. The silver doped carbon xerogels are further surface functionalized with [...] Read more.
Introducing new inexpensive materials for supercapacitors application with high energy density and stability, is the current research challenge. In this work, Silver doped carbon xerogels have been synthesized via a simple sol-gel method. The silver doped carbon xerogels are further surface functionalized with different loadings of nickel cobaltite (1 wt.%, 5 wt.%, and 10 wt.%) using a facile impregnation process. The morphology and textural properties of the obtained composites are characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and nitrogen physisorption analysis. The silver doped carbon xerogels display a higher surface area and larger mesopore volume compared to the un-doped carbon xerogels and hierarchically porous structure is obtained for all materials. The hybrid composites have been utilized as electrode materials for symmetric supercapacitors in 6 M KOH electrolyte. Among all the hybrid composites, silver doped carbon xerogel functionalized with 1 wt.% nickel cobaltite (NiCo1/Ag-CX) shows the best supercapacitor performance: high specific capacitance (368 F g−1 at 0.1 A g−1), low equivalent series resistance (1.9 Ω), high rate capability (99% capacitance retention after 2000 cycles at 1 A g−1), and high energy and power densities (50 Wh/Kg, 200 W/Kg at 0.1 A g−1). It is found that the specific capacitance does not only depend on surface area, but also on others factors such as particle size, uniform particle distribution, micro-mesoporous structure, which contribute to abundant active sites and fast charge, and ion transfer rates between the electrolyte and the active sites. Full article
(This article belongs to the Special Issue New Insight into Microporous and Mesoporous Materials)
►▼ Show Figures

Graphical abstract

15 pages, 6701 KiB  
Article
New Insights into Osteointegration and Delamination from a Multidisciplinary Investigation of a Failed Hydroxyapatite-Coated Hip Joint Replacement
by Florian Schönweger, Christoph M. Sprecher, Stefan Milz, Corina Dommann-Scherrer, Christoph Meier, Alex Dommann, Antonia Neels and Peter Wahl
Materials 2020, 13(21), 4713; https://doi.org/10.3390/ma13214713 - 22 Oct 2020
Cited by 10 | Viewed by 1834
Abstract
Hydroxyapatite (HA) coatings have become very popular in uncemented total hip arthroplasty (THA). Analysis of retrievals and tissue samples from an HA-coated femoral stem, which failed within 14 months after THA, provides exceptional insights into the failure mechanism, as well as the process [...] Read more.
Hydroxyapatite (HA) coatings have become very popular in uncemented total hip arthroplasty (THA). Analysis of retrievals and tissue samples from an HA-coated femoral stem, which failed within 14 months after THA, provides exceptional insights into the failure mechanism, as well as the process of osteointegration of such an implant. Methods: Retrievals were photo-documented. Samples were examined by micro-computed tomography, X-ray diffraction (XRD) and embedded in polymethylmethacrylate for histology. Results: The coating had partially delaminated. The sandblasted surface of the stem was partially polished by the delaminated HA coating, indicating failure before revision. In the tissue samples, the HA coating was well integrated by newly formed bone trabeculae. No adverse biological reaction was observed. XRD analysis showed that residues of the HA coating were still present and could clearly be differentiated from the surrounding bone. Preferential orientation of the HA crystallites could be identified within the newly formed bone, representing a potential mechanical weakness induced either by physiologic strain or by the coating. Conclusion: current HA coatings, relatively thick and made of high crystallinity HA, may be prone to delamination, as also seen in our study. Recent efforts have aimed towards thinner (<1 μm) coatings with nanocrystalline HA structures that possibly relate to lower delamination risks. However, the question arises if HA coatings are beneficial since sandblasted non-coated stems offer similar results without the risk of delamination. XRD not only permits differentiation between the HA from the coating and the HA of the ongrown bone, it also provides new insights into the microstructure of this newly formed bone. Full article
(This article belongs to the Special Issue New Insight into Microporous and Mesoporous Materials)
►▼ Show Figures

Graphical abstract

16 pages, 4347 KiB  
Article
Synthesis of Ordered Mesoporous Zr-Al Composite Oxides with Excellent Structural and Textural Properties and Extremely High Stability
by Feng Yu, Shinan Bi, Tonghui Liu, Dahai Pan, Shuwei Chen, Xiaoliang Yan, Binbin Fan and Ruifeng Li
Materials 2020, 13(13), 3036; https://doi.org/10.3390/ma13133036 - 07 Jul 2020
Cited by 1 | Viewed by 2270
Abstract
Ordered mesoporous Zr-Al composite oxide materials (denoted as OMZA-x) with different Zr contents have been synthesized by a solvent evaporation-inducing self-assembly procedure associated with a thermal treatment at 100 °C. A cooperative co-assembly process of amphiphilic triblock copolymer F127 molecules and inorganic hydroxyl [...] Read more.
Ordered mesoporous Zr-Al composite oxide materials (denoted as OMZA-x) with different Zr contents have been synthesized by a solvent evaporation-inducing self-assembly procedure associated with a thermal treatment at 100 °C. A cooperative co-assembly process of amphiphilic triblock copolymer F127 molecules and inorganic hydroxyl species originated from the hydrolysis of Zr and Al precursors was proposed to explain the synthesis of OMZA-x. Compared to ordered mesoporous alumina prepared without introducing Zr species, the resultant OMZA-x exhibited a much more ordered mesostructure combined with a distinct increase in the pore volume and specific surface area. The highly homogenous doping of Zr into the mesopore walls together with the formation of Zr-O-Al bonds can effectively enhance the thermal and hydrothermal stability of OMZA-x. For instance, the ordered mesostructure and excellent textural properties of OMZA-6 prepared with the optimum atomic ratio of Al to Zr of 6 could be well maintained even after a high-temperature treatment at 1000 °C for 1 h or a hydrothermal treatment at 100 °C for 6 h. Full article
(This article belongs to the Special Issue New Insight into Microporous and Mesoporous Materials)
►▼ Show Figures

Graphical abstract

17 pages, 5593 KiB  
Article
Cement Mortar Porosity by Modified Analysis of Differential Scanning Calorimetry Records
by Piotr Stępień, Zbigniew Rusin and Karol Skowera
Materials 2020, 13(5), 1080; https://doi.org/10.3390/ma13051080 - 28 Feb 2020
Cited by 4 | Viewed by 1920
Abstract
A modified method of interpreting a heat flux differential scanning calorimetry records in pore structure determination is presented. The method consists of determining the true phase transition energy distribution due to the melting of water during a differential scanning calorimetry (DSC) heating run. [...] Read more.
A modified method of interpreting a heat flux differential scanning calorimetry records in pore structure determination is presented. The method consists of determining the true phase transition energy distribution due to the melting of water during a differential scanning calorimetry (DSC) heating run. A set of original apparatus functions was developed to approximate the recorded calorimetric signals to the actual processes of the water phase transition at a given temperature. The validity of the proposed calorimetric curves-based algorithm was demonstrated through tests on a cement mortar sample. The correct analysis required taking into account both the thermal inertia of the calorimeter and the thermal effects that are associated with water transitions over the fairly narrow temperature ranges close to 0 °C. When evaluating energy distribution without taking the shifts of the proposed modified algorithm into account, the volume of the pores with radii bigger than 20 nm was greatly overestimated, while that of the smaller pores (rp < 20 nm) was underestimated, in some cases by approximately 70%. Full article
(This article belongs to the Special Issue New Insight into Microporous and Mesoporous Materials)
►▼ Show Figures

Graphical abstract

13 pages, 4831 KiB  
Article
Formation of Hierarchical Porous Films with Breath-Figures Self-Assembly Performed on Oil-Lubricated Substrates
by Edward Bormashenko, Yelena Bormashenko and Mark Frenkel
Materials 2019, 12(18), 3051; https://doi.org/10.3390/ma12183051 - 19 Sep 2019
Cited by 10 | Viewed by 3362
Abstract
Hierarchical honeycomb patterns were manufactured with breath-figures self-assembly by drop-casting on the silicone oil-lubricated glass substrates. Silicone oil promoted spreading of the polymer solution. The process was carried out with industrial grade polystyrene and polystyrene with molecular mass [...] Read more.
Hierarchical honeycomb patterns were manufactured with breath-figures self-assembly by drop-casting on the silicone oil-lubricated glass substrates. Silicone oil promoted spreading of the polymer solution. The process was carried out with industrial grade polystyrene and polystyrene with molecular mass M w = 35 , 000 g m o l . Both polymers gave rise to patterns, built of micro and nano-scaled pores. The typical diameter of the nanopores was established as 125 nm. The mechanism of the formation of hierarchical patterns was suggested. Ordering of the pores was quantified with the Voronoi tessellations and calculation of the Voronoi entropy. The Voronoi entropy for the large scale pattern was S v o r = 0.6 − 0.9 , evidencing the ordering of pores. Measurement of the apparent contact angles evidenced the Cassie-Baxter wetting regime of the porous films. Full article
(This article belongs to the Special Issue New Insight into Microporous and Mesoporous Materials)
►▼ Show Figures

Graphical abstract

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-5
Back to TopTop