Results 101 to 110 of about 9,594 (205)

Peculiarities of processes occurring at preparation of ca3co4o9+? ceramics and its properties [PDF]

open access: yes, 2013
Using colorimetry, turbidimetry, thermogravimetry, differential thermal analysis and X-ray analysis the processes taking place at preparation of Ca3Co4O9+?ceramics by means of different methods were studied.
Klyndyuk, A. I.   +2 more
core  

Biomimetic self-assembly of tetrapeptides into fibrillar networks and organogels [PDF]

open access: yes, 2008
The self-assembly features of a family of tetrapeptides inspired in silk structure are presented. An exhaustive study of the influence of the terminal alkyl chain length in this process is undertaken. Scanning electron microscopy (SEM), wide-angle X-ray
Abdallah   +37 more
core   +2 more sources

Non-covalent immobilization of RhDuphos on carbon nanotubes and carbon xerogels [PDF]

open access: yes, 2014
The immobilization of the chiral complex RhDuphos, by electrostatic or π–π (adsorption) interactions, on carbon nanotubes and carbon xerogels is investigated.
Gheorghiu, Constanta Cristina   +2 more
core   +2 more sources

Engineering Gel-Based Precursors into Advanced ORR Catalysts for Zn–Air Batteries and Fuel Cells: Insights into Hydrogels, Aerogels, Xerogels, Metal–Organic Gels, and Metal Aerogels

open access: yesGels
Efficient electrocatalysts for the oxygen reduction reaction (ORR) are essential for numerous energy storage and conversion systems, including zinc–air batteries and fuel cells. Cutting-edge Pt/C catalysts remain the most efficient ORR catalysts to date;
Shaik Gouse Peera, Myunghwan Byun
doaj   +1 more source

Dataset on the new recipe for the preparation of nanoporous carbon nanorods using resorcinol-formaldehyde xerogels

open access: yesData in Brief, 2018
The data presented in this article are related to the research article entitled “Novel controlled synthesis of nanoporous carbon nanorods from resorcinol-formaldehyde xerogels'' (Awadallah-F and Al-Muhtaseb, 2017) [1].
Ahmed Awadallah-F   +1 more
doaj   +1 more source

Influence of catalyst support characteristics and functionalization on the catalytic activity of Pt-Ru for PEM fuel cells [PDF]

open access: yes, 2011
Pt-Ru electrocatalysts supported on carbon xerogels and ordered mesoporous carbons were synthesized by reduction with formate ions (SFM method). Chemical and heat treatments were applied to modified the surface chemistry of original carbon supports ...
Calderon, J. C.   +8 more
core   +1 more source

Carbon nanotubes and xerogels as supports of well dispersed Pt catalysts for environmental applications [PDF]

open access: yes, 2004
Different types of carbon materials including multi-walled nanotubes (MWNT), carbon xerogels (CX) and activated carbon (AC) were used as supports to prepare platinum catalysts (1% w/w), which were tested in the treatment of aqueous aniline solutions by ...
Faria, Joaquim   +5 more
core   +1 more source

Anchoring selenido-carbonyl ruthenium clusters to functionalised silica xerogels

open access: yesJournal of the Brazilian Chemical Society, 2003
Silica Xerogels containing carbonyl Ru3Se2 nido clusters were prepared in three different ways. The simple dispersion of [Ru3(mu3-Se)2(CO)7(PPh 3)2] via sol gel process produces an inhomogeneous material; by contrast, homogeneous xerogels were obtained ...
Cauzzi Daniele   +4 more
doaj  

Aspirin loaded xerogels for buccal and oral GIT delivery for patients with dysphagia to target deep vein thrombosis

open access: yesBritish Journal of Pharmacy, 2018
This study aimed to develop xerogels for delivery of aspirin via the oral (buccal mucosa and GIT) route in geriatric patients with dysphagia. Xerogels were prepared using low molecular weight chitosan (CS), carrageenan (CAR) and metolose (MET) in ...
Smirna Farias
doaj   +1 more source

ESTUDO DA IMOBILIZAÇÃO DE LIPASE EM SÍLICA OBTIDA PELA TÉCNICA SOL-GEL

open access: yesQuímica Nova, 2015
The objective of this work was the immobilization of the enzyme Candida antarctica lipase B (CAL B) using the sol-gel method of immobilization and three different initiators of the polymerization reaction: one acid (HCl), one basic (NH4OH) and the other ...
Aline Matuella Moreira Ficanha   +4 more
doaj   +1 more source

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