Results 91 to 100 of about 13,503 (229)

Encapsulation of water insoluble drugs in mesoporous silica nanoparticles using supercritical carbon dioxide [PDF]

, 2011
Mesoporous silica nanoparticles MCM – 41 were synthesized with two dimensional hexagonal p6mm symmetry, high specific surface area(~ 980m2/g) narrow pore size and an average particle size of 186 nm.
Chirmade, U. N., Douroumis, D., Lamprou, D.A., Patil, A., Trivedi, V., Urquart, A.   +5 more
core   +1 more source

Engineering Biochar‐Derived Functional Materials for High‐Performance Supercapacitors: Design Principles, Mechanisms, and Scalable Strategies

Carbon Energy, EarlyView.
ABSTRACT Biochar has emerged as a useful and adaptable source of carbon for supercapacitor electrodes. Its value comes from the way biomass chemistry, thermal conversion, and activation conditions shape the resulting pore network, surface groups, and degree of carbon ordering.
Soumen Mandal, Avinash C. Mendhe, Mayna Roy, Neha S. Barse, Taejoon Park, Han‐Seung Lee, Haigun Lee   +6 more
wiley   +1 more source

Transparent silica aerogels for window insulation

Solar Energy Materials, 1983
Abstract Supercritically drying a colloidal gel of silica produces a porous material called an aerogel. These aerogels not only are excellent thermal insulators, but also can be highly transparent. We investigate the microstructure and optical properties of transparent silica aerogels and calculate the energy transfer through hypothetical aerogel ...
Rubin, M., Lampert, C.M.
openaire   +2 more sources

The influence of various pH values on the aerogel physical properties by sol-gel technique

Iraqi Journal of Physics, 2019
Hydrophobic silica aerogels were successfully preparation by an ambient pressure drying method from sodium silicate (Na2SiO3) with different pH values (5, 6, 7, 8, 9 and 10). In this study, acidic HCl (1M), a basic NH4OH (1M) were selected as a catalyst
Baha Fakhry shehab
doaj   +1 more source

Examination of Silica Sol-Gels and Aerogels Containing Silver Nanoparticles and 4-Mercaptobenzoic Acid Using Surface-Enhanced Raman Spectroscopy [PDF]

, 2016
Sol-gels and aero-gels containing silver nanoparticles have been investigated for use as substrates in surface-enhanced Raman spectroscopy (SERS).
Atkinson, Elizabeth J.O., Corrado, Tanner, Gilbert, Brian D.   +2 more
core   +1 more source

Multifunctional Design of Solid Polymer Electrolytes: Paving the Way for High‐Performance All‐Solid‐State Batteries

Carbon Energy, EarlyView.
This review provides a comprehensive and systematic overview of the multifunctional design strategies for solid polymer electrolytes (SPEs), a pivotal component for enabling high‐performance all‐solid‐state batteries (ASSBs). It begins with a detailed classification of SPE systems and elaborates on their respective molecular design principles. The work
Bin Man, Yuzhen Zhao, Bo Fu, Yulong Zeng, Yinwen Chen, Qingrui Liu, Wenjing Luo, Xin Li, Xuewei Li, Zikang Zhang, Yun Zheng, Sijie Liu   +11 more
wiley   +1 more source

Small Angle Neutron Scattering of Aerogels: Simulations and Experiments

, 1995
A numerical simulation of silica aerogels is performed using diffusion-limited cluster-cluster aggregation of spheres inside a cubic box (with periodic boundary conditions). The volume fraction $c$ is taken to be sufficiently large to get a gel structure
Amar, Anwar Hasmy, Ball, Botet, Brown, Cabane, Cooper, Dietler, Dimon, Egelstaff, Eric Anglaret, Feigin, Ferri, Fisher, Foret, Freltoft, Freltoft, Grey, Guinier, Hasmy, Hasmy, Hasmy, Jacques Pelous, Jullien, Jullien, Jullien, Kolb, Kolb, Mandelbrot, Marie Foret, Meakin, Meakin, Posselt, René Vacher, Rémi Jullien, Schaefer, Sinha, Vacher, Vacher, van Garderen   +39 more
core   +1 more source

New Zeolitic Imidazolate Framework‐Derived N‐Doped Carbon LiCl Composites for Sorption Thermal Batteries Utilizing Solar Energy

Carbon Energy, EarlyView.
New hierarchical ZIF‐derived nitrogen‐doped carbons (ZDCs) impregnated with LiCl are promising materials for sorption thermal batteries utilizing solar energy. This study examines the structural properties of ZDCs, the effect of LiCl loading, the enhancement of hydrothermal stability by nanoporous carbon, and the water adsorption properties of a series
Jan Marčec, Marija Švegovec, Matjaž Mazaj, Andraž Krajnc, Boštjan Genorio, Daniel Lager, Nataša Zabukovec Logar, Alenka Ristić   +7 more
wiley   +1 more source

Universal Behaviour of the Superfluid Fraction and Tc of He-3 in 99.5% Open Aerogel

, 1999
We have investigated the superfluid transition of He-3 in a 99.5% porosity silica aerogel. This very dilute sample shows behaviour intermediary between bulk He-3 and He-3 confined to the denser aerogels previously studied.
A. A. Abrikosov, A. A. Abrikosov, A. Golov, A. Hasmy, A. Hasmy, A. J. Leggett, B. I. Barker, D. T. Sprague, D. T. Sprague, D. W.Schaefer, E. V. Thuneberg, G. Lawes, H. Alles, H. Alles, J. M. Parpia, J. V. Porto, J. V. Porto, J. V. Porto, K. Matsumoto, M. Franz, N. Mulders, R. Hanninen, R. Vacher, S. C. J. Kingsley, V. Ambegaokar   +24 more
core   +1 more source

Formation and characterization of inorganic membranes from zeolite-silica microcomposites [PDF]

, 1988
Small crystals of zeolites (500-1000 nm) with two- and three-dimensional channel systems (faujasite and ZSM-5 structures) were embedded in amorphous thin films derived from TEOS hydrolyzed in alcoholic solution.
Barrer, Breck, Brinker, Jacobs, Janata, Seiyama, Ward   +6 more
core   +1 more source