Results 41 to 50 of about 124,438 (311)

Structural studies of mesoporous ZrO$_{2}$-CeO$_{2}$ and ZrO$_{2}$-CeO$_{2}$/SiO$_{2}$ mixed oxides for catalytical applications [PDF]

open access: yes, 2016
In this work the synthesis of ZrO$_{2}$-CeO$_{2}$ and ZrO$_{2}$-CeO$_{2}$/SiO$_{2}$ were developed, based on the process to form ordered mesoporous materials such as SBA-15 silica.
Bacani, R.   +3 more
core   +2 more sources

Synthesis of Mesoporous Bi2WO6 Flower-Like Spheres with Photocatalysis Properties under Visible Light

open access: yesInternational Journal of Electrochemical Science, 2020
3D mesoporous Bi2WO6 flower-like spheres, which compose of nanosheets, were successfully synthesized by simple hydrothermal treatment. Bi2WO6 flower-like spheres exhibited high photocatalytic activity to tetracycline under visible light irradiation ...
Zhenqiong Gou, Jinhang Dai, Jinwu Bai
doaj   +1 more source

Fiber optic long period grating sensors with a nanoassembled mesoporous film of SiO2 nanoparticles [PDF]

open access: yes, 2010
A novel approach to chemical application of long period grating (LPG) optical fibers was demonstrated, which were modified with a film nanoassembled by the alternate deposition of SiO2 nanoparticles (SiO2 NPs) and poly(diallyldimethyl ammonium ...
Korposh, Sergiy   +6 more
core   +1 more source

Synthesis of Hierarchically Porous Bioactive Glass and Its Mineralization Activity

open access: yesMolecules, 2023
Mesoporous bioactive glass is a promising biomaterial for bone tissue engineering due to its good biocompatibility and bioactivity. In this work, we synthesized a hierarchically porous bioactive glass (HPBG) using polyelectrolyte-surfactant mesomorphous ...
Jiawei Liu   +4 more
doaj   +1 more source

Structural and Luminescence Properties of Silica-Based Hybrids Containing New Silylated-Diketonato Europium(III) Complex [PDF]

open access: yes, 2012
A new betadiketonate ligand displaying a trimethoxysilyl group as grafting function and a diketone moiety as complexing site (TTA-Si = 4,4,4-trifluoro-2-(3-trimethoxysilyl)propyl)-1-3-butanedione (C4H3S)COCH[(CH2)3Si(OCH3)3]COCF3) and its highly ...
Adriana P. Duarte   +45 more
core   +2 more sources

Pore Narrowing of Mesoporous Silica Materials [PDF]

open access: yesMaterials, 2013
To use mesoporous silicas as low-k materials, the pore entrances must be really small to avoid diffusion of metals that can increase the dielectric constant of the low-k dielectric. In this paper we present a new method to narrow the pores of mesoporous materials through grafting of a cyclic-bridged organosilane precursor.
Frederik Goethals   +6 more
openaire   +3 more sources

Modulating Two‐Photon Absorption in a Pyrene‐Based MOF Series: An In‐Depth Investigation of Structure–Property Relationships

open access: yesAdvanced Functional Materials, EarlyView.
This study investigates H4TBAPy‐based metal–organic frameworks (MOFs) ‐ NU‐1000, NU‐901, SrTBAPy, and BaTBAPy ‐ for multiphoton absorption (MPA) performance. It observes topology‐dependent variations in the 2PA cross‐section, with BaTBAPy exhibiting the highest activity.
Simon N. Deger   +10 more
wiley   +1 more source

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

open access: yes, 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.   +5 more
core   +1 more source

Mesoporous Materials: From Synthesis to Applications [PDF]

open access: yesInternational Journal of Molecular Sciences, 2019
Mesoporous silica are inorganic materials, which are formed by the condensation of sodium silicate or silicon alkoxides around an ordered surfactant used as template [...]
Juan Antonio Cecilia   +2 more
openaire   +3 more sources

Selective Benzene Capture by Metal‐Organic Frameworks

open access: yesAdvanced Functional Materials, EarlyView.
Metal‐organic frameworks (MOFs) hold significant potential for capturing benzene from air emissions and hydrocarbon mixtures in liquid phases. This capability stems from their precisely engineered structures, versatile chemistries, and diverse binding interactions.
Zongsu Han   +4 more
wiley   +1 more source

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