Results 51 to 60 of about 26,843 (218)

Development of Silica-based Materials from Natural Sources as A Green Catalyst for Biofuel Production

open access: yesAceh International Journal of Science and Technology
Mesoporous silica is a versatile material characterized by its highly ordered nanoporous structure with pore diameters ranging from 2 to 50 nanometers. This unique structure provides a large surface area and volume, making mesoporous silica an excellent ...
Reva Edra Nugraha   +9 more
doaj   +1 more source

Sintesis dan Karakterisasi Enkapsulat Katalis Nikel (II) pada Silika Mesopori Modifikasi

open access: yesJurnal Riset Kimia, 2020
Ni(II)-BF3/MCM-41 was synthesized for heterogeneous catalyst. The boron trifluoride modified mesoporous silica BF3/MCM-41 was studied to investigate its ability as supporting agent in heterogeneous catalysis system.
Admi Admi   +2 more
doaj   +1 more source

Mechanism‐Driven Nanoformulations for Cognitive Impairment Induced by Intermittent Hypoxia and Periodontitis

open access: yesAdvanced Materials, EarlyView.
Clinically, intermittent hypoxia (IH) is often accompanied by periodontitis, which accelerates cognitive impairment induced by IH. Novel Janus mesoporous gold‐silica nanoformulations (RVG‐Au&mSiO2‐TPP‐VB) enable intranasal delivery, achieve hierarchical targeting to neuronal mitochondria, effectively scavenge reactive oxygen species, inhibit the HIF‐1α/
Kai‐Run Zhang   +15 more
wiley   +1 more source

Investigation of silica - PVA xerogel microstructure evolution during thermal treatment by SANS experiment [PDF]

open access: yes, 2004
The purpose of the study was to investigate the appearance of certain microstructures developing in the SiO2/PVA nanocomposite xerogels at different temperatures by small-angle neutron scattering (SANS). The samples were prepared by the alcoxide route of
Savii, Cecilia   +3 more
core   +1 more source

Iron (III)-schiff base immobilized on porous silica and magnetite: a comparison study for oxidation of benzylic alcohols and sulfides [PDF]

open access: yesشیمی کاربردی روز
The iron (III) Schiff base complex was immobilized on magnetic silica as well as mesoporous silica substrates and characterized by XRD, TEM, FT-IR, AAS, VSM techniques, and in the case of mesoporous silica, it was also identified with N2 adsorption ...
Mona Rajaee   +3 more
doaj   +1 more source

Evolution‐Driven Bio‐Composite Aerogels for Self‐Adaptive Thermal Regulation and Energy Storage

open access: yesAdvanced Materials, EarlyView.
Inspired by nature's multiphase integration, a single chitosan (CTS)–metal chloride (MCl3) coordination precursor is engineered to enable sequential material and functional evolution. The resulting metal ion‐coordinated chitosan (CTS–M) aerogels exhibit humidity‐adaptive thermal insulation for battery safety, while carbonization yields conductive ...
Xiaoxue Zhang   +5 more
wiley   +1 more source

Luminescence performance of Cerium(III) ions incorporated into organofunctional mesoporous silica [PDF]

open access: yes, 2020
Series of SBA-15 derived ordered mesoporous silica adsorbents bearing phenylsulfonic, phosphonic groups and their combinations were synthesized by non-grafting approach. Sodium metasilicate was used as precursor for the silica matrix.
Kessler, Vadim,   +2 more
core   +1 more source

Hybrid Amyloid–Boron Nitride Aerogels for Lightweight Sound Insulation

open access: yesAdvanced Materials, EarlyView.
Amyloid fibrils template the mild formation of boron nitride–rich hybrid aerogels with hierarchical porosity, enhanced BN‐like ordering, and fibril‐reinforced mechanics. These ultralight materials combine thermal stability with strong sound absorption and transmission loss, offering a sustainable bio‐assisted route toward lightweight acoustic shields ...
Mohammad Peydayesh   +8 more
wiley   +1 more source

Applications of ordered mesoporous metal oxides : energy storage, adsorption, and catalysis [PDF]

open access: yes, 2011
The experimental data and results demonstrated here illustrate the preparation and application of mesoporous metal oxides in energy storage, adsorption, and catalysis.
Ren, Yu
core  

Assembly of nonionic-anionic co-surfactants to template mesoporous silica vesicles with hierarchical structures [PDF]

open access: yes, 2010
Mesoporous silica vesicles (MSV) with a hierarchical structure were developed using triblock copolymer Pluronic P103 and anionic surfactant sodium dodecyl sulfate (SDS) as a co-surfactant in the present of an inorganic salt, sodium fluoride (NaF).
Edler, K   +4 more
core   +1 more source

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