Special Issue "Porous Materials"
QuicklinksA special issue of Materials (ISSN 1996-1944).
Deadline for manuscript submissions: closed (30 October 2009)
Special Issue Editor
Guest Editor
Prof. Dr. Jonah Erlebacher
Department of Materials Science and Engineering 102 Maryland Hall, 3400 N. Charles St. Baltimore, MD 21218, USA
Website: https://jshare.johnshopkins.edu/jerleba1/public_html/
E-Mail:
Interests: nanoporous metals; kinetics of nanoscale morphological evolution; fuel cell catalysis; thin foil metallurgy; fundamentals of protein crystal growth
Published Papers
Special Issue Information
Dear Colleagues,
Porous materials are found in all classes of materials, from microporous zeolite ceramics, to mesoporous metals, to macroporous polymers. They are fundamental in a diverse range of applications, from structural materials to energy technologies. Recent advances in porous materials include the development of nanoporous metals by selective dissolution and their use in catalysis, and phase separation methods to make porous ceramics. This special issue of Materials will be devoted to exploring the wide range of types and applications of porous materials. Special emphasis will be devoted to new fabrication methods, new properties, and new applications of porous materials, and how these impact many different technologies.
Prof. Dr. Jonah Erlebacher
Guest Editor
Submission
All papers should be submitted to materials@mdpi.org. To be published continuously until the deadline and papers will be listed together at the special issue website.
Submitted papers should not have been published previously, nor be under consideration for publication elsewhere. All papers are refereed through a peer-review process. A guide for authors is available on the Instructions for Authors page. Materials is an international peer-reviewed quarterly journal published by Molecular Diversity Preservation International. Review manuscripts: Before writing their manuscripts, potential authors of review articles should forward the title and a short abstract to materials@mdpi.org. We will then provide feedback on the suitability of the topic.
Open Access publication fees are 300 CHF per paper. English correction fees and/or formatting fees (250 CHF) will be added in certain cases (550 CHF per paper for those papers that require extensive additional formatting and/or English corrections).
Keywords
- porous materials
- nanoporosity
- porous ceramics
- porous metals
- porous polymers
- microporous and mesoporous materials
Planned Papers
Feature Papers
Type of Paper: Article
Title: The Stabilization Effect of Nanoporous Materials to Proteins. Application to the Electrochemical Biosensors
Authors: Nikos Chaniotakis, Emilia Psarouli, Vicky Vamvakaki
Affiliations: Laboratory of Analytical Chemsitry, University of Crete, 71003 Vasilika Voutes Iraklion Crete, Greece; E-Mails: nchan@chemistry.uoc.gr; vickyvam@chemistry.uoc.gr
Abstract: This manuscript describes the use of nanoporous materials that are used for the stabilization of catalytic proteins, such as the acetyl cholinesterase and glucose oxidase, for the development of electrochemical biosensors. The stabilization effect is shown to be related to the size of both the nanocavity, as well as on the size of the protein. While the ratio of these two sizes can be calculated theoretically to be in the range of 2, it is shown experimentally that this ratio can extend up to 10, with no appreciable decrease in the stabilization observed. Finally, it is shown that while the use of conductive nanomaterials allows for the direct electrochemical transduction to the transducer, in the case that the matrix used is non conductive, a mobile redox mediator is required for a facile signal transduction.
Type of Paper: Review
Title: Recent Trends in the Application of Porous Aluminophosphates in Catalysis
Authors: M. Hartmann, S.P. Elangovan
Affiliations: Erlangen Catalysis Resource Center, University of Erlangen-Nüremberg, Germany; E-Mail: martin.hartmann@ecrc.uni-erlangen.de
Abstract: The literature related to the catalytic activity of aluminophosphates (AlPO) and silicoaluminophosphates (SAPO) molecular sieves containing transition metal ions and clusters will be reviewed. Microporous crystalline metal aluminophosphates (MeAPOs) and metal silicoaluminophosphates (MeAPSOs) represent an important group of inorganic materials because of their high potential as adsorbents and catalysts. This review focuses mainly on the catalytic activity of, MeAPOs and MeAPSOs in comparison to the corresponding Me-SAPOs. The catalysis over these materials is summarized and discussed with respect to the catalytic performance, possible reaction mechanisms and potential applications.
Regular Papers
Type of Paper: Review
Title: Porous Semiconductors
Author: H. Föll; J. Carstensen, et al.
Affiliation: Institute for Materials Science, Christian-Albrechts-University of Kiel, Kaiserstr. 2, D-24143 Kiel, Germany
Abstract: Porous in single crystalline semiconductors come in many variants (e.g. pore sizes from 2 nm to > 10 µm; morphologies from perfect pore crystal to fractal) and exhibit many unique properties directly or as nanocompounds if the pores are filled. The various kinds of pores obtained in semiconductors like Ge, Si, III-V and II-VI compound semiconductors are systematically reviewed. Essentials of pore formation mechanisms will be discussed, focussing on differences and some open questions but in particular on common properties. Possible applications of porous semiconductors, including for example high explosives, high efficiency electrodes for Li ion batteries, drug delivery systems, solar cells, thermoelectric elements and many novel electronic, optical or sensor devices, will be introduced and discussed.
Type of Paper: Review
Title: The Influence of Material Flexibility on Zeolite Performance
Authors: Michiel Makkee and Jacobus C.Jansen
Affiliation: Chemical Engineering, DelftChemTech, Delft University of Technology, 2628 BL, Delft, The Netherlands
Abstract: Adsorption of naphthalene in MFI should not be possible according to the Atlas of Zeolite Structures and Barrer s definition on adsorption of guest molecules. However, single crystal structure analysis confirms the presence of naphthalene in the zeolite with occupancy close to one at the channel intersections. In view of this result the separation of xylenes, and the synthesis of caprlactam with MFI as well as zeolite performances to other ring-shaped molecules are addressed. Linear molecules like alkanes can be easily separated from mono-branched with MFI, however, based on surface diffusion. Equally important is the separation of mono-branched and di-branched alkanes which is an excellent mixture for absolute separation in MFI. Experimentally it has not been shown yet. The flexibility of MFI and other industrially interesting zeolite frameworks as well as their performances thereof are discussed.
Type of Paper: Review
Affiliations: Institut für Technische Chemie, Leibniz Universität Hannover, Callinstrasse 3, 30167 Hannover, Germany,
Abstract: Titanium dioxide is a very important semiconductor with high potential for applications in photocatalysis, solar cells, photochromism, sensoring, and various other areas of nanotechnology. Increasing attention has recently been focused on the simultaneous achievement of high bulk crystallinity and the formation of ordered mesoporous TiO2 frameworks with high thermal stability. This review focuses on the preparation and characterisation of mesoporous titania, noble metals nanoparticles and/or doped mesoporous titania networks. The photocatalytic activity of mesoporous titania materials upon visible and UV illumination will be reviewed, summarized and discussed, in particular, concerning the influence of preparation and solid-state properties of the materials. Reaction mechanisms that are being discussed to explain these effects will be presented and critically evaluated.
Type of Paper: Review
Title: A Natural Source of Porous Biosilica for Nanotech Applications: The Marine Diatoms
Authors: L. De Stefano, M. De Stefano, E. De Tommasi, I. Rea and I. Rendina
Affiliations: Institute for Microelectronics and Microsystems, Dept. of Naples, National Researches Council, Via P. Castellino 111, 80131, Napoli, Italy; Environmental Science Department, Second University of Naples, 81100 Caserta, Italy; email: luca.destefano@na.imm.cnr.it
Abstract: Several biological organisms, from some sea shells to butterflies, exhibit beautiful and sophisticated organs, developed during the evolution of each species, which properties are defined by their nanostructures. The marine diatoms are microscopic algae enclosed between two valves of hydrated amorphous silica. These intricate structures, called frustules, show quite symmetric patterns of micrometric and nanometric pores. Their strong similarity with man-made materials, such as porous silicon and porous alumina, suggests to exploit the physical properties of the frustules in nanotech applications. In this paper, we review the most relevant results achieved in our laboratory, and all over the world, about the discovery of surprising features that can be found in the characterization of these natural porous biosilica materials.
Type of Paper: Article
Title: Effect of Surfactants on Transport of Ions through Nanoporous Membranes
Authors: Pieter Stroeve, Steven Selverston and Ko Nee
Affiliation: Department of Chemical Engineering and Materials Science, University of California Davis, Davis, CA 95616; USA
Abstract: Nanoporous membranes have generated considerable interest due to their potential uses in various applications of selective mass transfer. One particular area of interest concerns ion perm-selectivity and flux modulation or gating. Recently, it has been shown recently that flux of methyl viologen cations through nanoporous membranes (R < 20 nm) can be switched on and off by varying surfactant concentration in the presence of an electric field . In this work, it is shown that the flux of the benzene ions through a nanoporous membrane (R = 28 nm) can either be increased or decreased using charged surfactants, without the presence of an electric field.
Last update: 3 February 2010