Results 71 to 80 of about 3,172 (245)
Journal of the Brazilian Chemical Society, 2015 In this study, polyoxometallate based hybrid photochromic materials were prepared by incorporating phosphotungstate anion, PW12O403−, (PW) in hybrid tetraethyl orthosilicate and (3-glycidyloxypropyl)trimethoxysilane TEOS-GPTMS derived organomodified silicates (Ormosil) matrices by sol-gel method and the resulting materials were used to prepare ...
Ferreira Neto, Elias P. +5 more
openaire +3 more sources
Carbon Dots: A Review with Focus on Sustainability
Advanced Science, Volume 11, Issue 35, September 18, 2024.Carbon dots (CDs) are an emerging class of optical nanomaterials, which can deliver function on par with the incumbents, while being free from toxic metals and critical raw materials. In particular, CDs derived from plentiful biomass can become truly sustainable, provided that their synthesis and processing are environmentally friendly.
Junkai Ren +4 more
wiley +1 more source
Sol-Gel Silica Nanoparticles in Medicine: A Natural Choice. Design, Synthesis and Products
Molecules, 2018 Silica is one of the most abundant minerals in the Earth’s crust, and over time it has been introduced first into human life and later into engineering. Silica is present in the food chain and in the human body.
M. Clara Gonçalves
doaj +1 more source
Group Vibrational Mode Assignments as a Broadly Applicable Tool for Characterizing Ionomer Membrane Structure as a Function of Degree of Hydration [PDF]
, 2020 Infrared spectra of Nafion, Aquivion, and the 3M membrane were acquired during total dehydration of fully hydrated samples. Fully hydrated exchange sites are in a sulfonate form with a C₃V local symmetry. The mechanical coupling of the exchange site to a
Abu-Hakmeh, Khaldoon +13 more
core
Les revêtements sol-gel pour l’anticorrosion [PDF]
, 2011 La voie sol-gel est une méthode de synthèse mais également un procédé de dépôt en phase liquide. Depuis plusieurs années, la communauté scientifique travaillant sur la technique de dépôt par voie sol-gel est impliquée dans des problématiques de ...
Ansart, Florence +3 more
core +2 more sources
A route towards a new hydrazino-ormosil
Journal of Physics: Conference Series, 2007 We have synthesized a new compound, 3-hydrazinopropyltrimethoxysilane, which can be applied in chemical modification of SiO2 surfaces. The synthesis route is rather simple, including only two major steps. The compound was analysed and confirmed by NMR and FTIR spectroscopy.
K Põhako +5 more
openaire +1 more source
Applied SciencesSelf-cleaning and hydrophobic treatments based on TiO2 and SiO2 nanoparticles are widely applied for the preservation of cultural heritage materials, to improve their resilience in polluted environments.
Laura Bergamonti +6 more
doaj +1 more source
Advanced Materials, Volume 36, Issue 18, May 2, 2024.It has already been ≈90 years since the first development of aerogels, and many researchers have devoted tremendous efforts to enhance their mechanical properties, which is yet completely achieved. This review presents multiscale, multicompositional and multidimensional strategies, resulting from flexible synthesis techniques for 0D–1D, 0D–2D, 1D–2D ...
Vinayak G. Parale +6 more
wiley +1 more source
Aerogeles con aplicaciones en biomedicina y medioambiente
Boletín de la Sociedad Española de Cerámica y Vidrio, 2007 It is possible to synthesise inorganic-organic hybrid materials incorporating the organic phase to a sol prepared from a metal organic under high power ultrasounds.
Toledo-Fernández, J. A. +6 more
doaj
In Situ Fabrication of a Superhydrophobic ORMOSIL Coating on Wood by an Ammonia–HMDS Vapor Treatment
Coatings, 2019 A superhydrophobic ORMOSIL (organically modified silicate) coating was in situ fabricated on a wood surface by ammonia–hexamethylisilazane (HMDS) vapor treatment.
Decai Yue +4 more
semanticscholar +1 more source