نتایج جستجو برای: Amine functionalization

تعداد نتایج: 30046  

Journal: :Catalysts 2023

An easy-to-handle eosin Y-based heterogeneous photocatalyst was prepared by post-functionalization of a polydopamine-coated open cell polyurethane foam (PDA@PUF) via the silanization adhesive layer with 3-(triethoxysilyl)propan-1-amine (APTES) and subsequent EDC-mediated coupling resulting amino-functionalized Y. The obtained macroscopic material, EY-APTES@PDA@PUF, showed good efficiency excell...

Journal: :Applied Surface Science 2021

The functionalization of the surface nanomaterials is a key approach to improve their stability, tune reactivity and confer them specific properties. However, mapping functional groups at nanometer scale remains difficult achieve. This concerns not only chemical nature these groups, but also spatial distribution. It particularly challenging when it comes organic non-planar objects such as nanop...

Journal: :Nano select 2022

Abstract This work probes the potential of fluorous fatty acids as stabilizing ligands in synthesis mixed halide perovskite quantum dots (MHP QDs). Traditionally, MHP QDs are synthesized presence oleic acid (OA) and oleyl amine (OAm). Here have been used along with OA OAm to yield higher stability. Increased fractions molecules reaction mixture require process be carried out at a temperature du...

Journal: :Journal of Cleaner Production 2022

Sorption-based techniques have been widely studied for metal recovery. Conventionally, sorption and desorption steps are operated in fixed-bed column system under one-pass mode (FO); however, such requires a large volume of solution passing the bed when feed concentration is low. In this study, highly stable amine-coated alginate melamine (ML/APG) sponge was prepared applied combined process in...

2009
Grégory Delafosse Lionel Patrone Didier Goguenheim

Memory devices play an important role in electronics market leading to a growing research interest in the next generation of non-volatile memory cells. Numerous groups [1,2] work on top-down memory cells based on fullerenes C60 that are generally embedded in insulating polymers where they act as storage sites. Beside these studies, a reaction path between amines and fullerenes [3] may be used t...

Journal: :international journal of nanoscience and nanotechnology 2012
t. matsuura m. a. aroon a. f. ismail

in this paper, synthesized (raw) multi-walled carbon nanotube (rmwcnts) surfaces were modified with chitosan and β-cyclodextrin using chen’s soft cutting technique. raw and surface modified multi-walled carbon nanotubes were observed by transmission electron microscope (tem). the results showed that chitosan and β-cyclodextrin could attach to the outer surface of nanotubes, wrapping the nanotub...

Majideh Babaei Mansoor Anbia, Mohammad Javad Habibi, Mojgan Haghsenas

In this study, a novel solid dendrimer amine (hyperbranched polymers) was prepared using mesoporous carbon nitride functionalized by melamine based dendrimer amines. This adsorbent was denoted MDA-MCN-1. The process was stepwise synthesis and hard-templating method using mesoporous silica SBA-15 as a template. Cyanuric chloride and N,N-diisopropylethylamine (DIPEA, Merck) were used for function...

Journal: :Chem 2023

Phosphorus fluoride exchange (PFEx) represents a cutting-edge advancement in catalytic click-reaction technology. Drawing inspiration from nature’s phosphate connectors, PFEx facilitates the reliable coupling of P(V)–F loaded hubs with aryl alcohols, alkyl and amines to produce stable, multidimensional P(V)–O P(V)–N linked products. The rate P–F is significantly enhanced by Lewis amine base cat...

Journal: :Environmental research & technology 2021

Macroporous foams having 80 vol % of nominal porosity were synthesized by the copolymerization crosslinking glycidyl methacrylate (GMA) based high internal phase emulsions (HIPEs). To alter mechanical and thermal properties, cellulose nanocrystals (CNCs) used as filler. For this purpose, CNCs added to continuous oil during emulsification process at a loading rate 1, 5 or 7 wt %. Consequently, c...

Journal: :Photochem 2022

Herein we present silver nanoparticles (AgNPs)-doped inorganic–organic hybrid silica films on glass and polypropylene substrates. A sol in alcoholic medium was prepared at room temperature using TEOS, GLYMO, APTES. Silver were generated situ within the sol. AgNPs-SiO2 film obtained by dip coating method following drying 80 °C. FTIR spectra shows several vibrational bands of network amine functi...

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