Results 121 to 130 of about 22,015 (273)

Electrochemical behavior and structural changes of V2O5 xerogel

open access: yesJournal of the Brazilian Chemical Society, 2003
Thin films of V2O5 xerogel were characterized by several in-situ techniques for different amount of intercalated Li+. Changes in the V2O5 mechanical properties were analyzed by electroacoustic impedance data, indicating that lithium intercalation does ...
Huguenin Fritz, Torresi Roberto M.
doaj  

Removal of Copper (II) from Aqueous Solutions Using Silica Xerogel as Sorbent: Adsorption Properties and Mechanism

open access: yesColloids and Interfaces
The contamination of water resources with heavy metals creates problems for using it as a source of drinking water. Adsorption is one of the most promising methods for heavy metal ion removal from natural and wastewater.
Ammaeva Shanaz   +4 more
doaj   +1 more source

Synthesis and characterization of metal-organic framework aerogels [PDF]

open access: yes, 2015
27 p.[EN] Aerogels have become a material of interest to many scientists in the recent decades due to its unique physical properties which give it the potential to improve technologies in a variety of fields. MOF-based aerogel is a new branch of aerogels
Khalaf Reyad Raslan, Ahmed
core   +1 more source

Reverse saturable absorption in solid xerogel matrices

open access: yes, 1993
International audienceAluminophthalocyanine (APC) and fullerene carbon 60 (C,) have been studied encaged in different silica matrices. The reverse saturable absorption properties of these doped xerogels have been compared to those of reference solutions ...
Bentivegna, Florian   +6 more
core   +4 more sources

TiO2-carbon xerogel composites as supports in the preparation of Pt catalysts for selective hydrogenation [PDF]

open access: yes, 2009
In the last decades, considerable efforts have been devoted to the development of heterogeneous catalysts able to perform efficient selective hydrogenation of the carbonyl function in α,β-unsaturated aldehydes, to yield the corresponding unsaturated ...
Dražić, Goran   +4 more
core  

Phase transformations in xerogels of mullite composition [PDF]

open access: yes
Monophasic and diphasic xerogels have been prepared as precursors for mullite (3Al2O3-2SiO2). Monophasic xerogel was synthesized from tetraethyl orthosilicate and aluminum nitrate nanohydrate and the diphasic xerogel from colloidal suspension of silica ...
Bansal, Narottam P., Hyatt, Mark J.
core   +1 more source

Graphene-doped carbon xerogel combining high electrical conductivity and surface area for optimized aqueous supercapacitors

open access: yes, 2017
A graphene doped carbon xerogel was synthesized by simply replacing the water (solvent) by an aqueous well-dispersed graphene oxide stable suspension in the precursor mixture used for the synthesis of the organic xerogel.
María Canal-Rodríguez   +5 more
semanticscholar   +1 more source

Pengaruh Metode Pemisahan Pelarut Dalam Gel Terhadap Sifat Fisik Titania-alumina Sebagai Penyangga Katalis [PDF]

open access: yes, 2003
PENGARUH METODE PEMISAHAN PELARUT DALAM GEL TERHADAP SIFAT FISIK TITANIA-ALUMINA SEBAGAI PENYANGGA KATALIS. TiO2-Al2O3 gel monolitik dalam nisbah mol 0,2 untuk TiO2 dan 0,8 untuk Al2O3 telah dibuat dengan cara hidrolisis dari aluminium sec-butoksida, Al (
Hirashima, H. (Hiroshi)   +3 more
core  

Coesite Formation at Ambient Pressure and Low Temperatures

open access: yesAdvances in Materials Science and Engineering, 2008
Partial crystallization of silica xerogel in the form of coesite has been obtained at low-pressure conditions and temperatures of ∼565∘C, in samples containing chlorophyll aggregates dispersed in amorphous silica.
J. R. Martínez   +5 more
doaj   +1 more source

Development of an osteoblast/osteoclast co-culture derived by human bone marrow stromal cells and human monocytes for biomaterials testing [PDF]

open access: yesEuropean Cells & Materials, 2011
The communication of bone-forming osteoblasts and bone-resorbing osteoclasts is a fundamental requirement for balanced bone remodelling. For biomaterial research, development of in vitro models is necessary to investigate this communication.
H Worch   +3 more
doaj  

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