Results 81 to 90 of about 25,120 (256)

Dispersão e consolidação de zircônia dopada com WOx a partir do tungstato de zircônio e trietanolamina em meio aquoso

open access: yesCerâmica
Resumo Em estudos recentes, verificou-se ser possível produzir, em meio aquoso, nanopartículas de zircônia hidratada (cristalitos inferiores a 2 nm) a partir de um precursor não usual, o tungstato de zircônio (ZrW2O8), óxido bimetálico de tamanho ...
M. Antunes   +3 more
doaj   +1 more source

Replacing the triethanolamine in Wolbers’ resin and bile soaps

open access: yesCeROArt : Conservation, Exposition, Restauration d'Objets d'Art, 2016
In the 80’s, Richard Wolbers introduced the resin and bile soap to the conservation world. Despite the numerous advantages these products offer, studies mentioned the residues most likely caused by the triéthanolamine.
Camille Polkownik
doaj   +1 more source

Efficient base- and ligand-free palladium catalysed O-arylation of phenols in choline chloride:triethanolamine as a reusable deep eutectic solvent

open access: yesRoyal Society Open Science
In this paper, we present a novel and sustainable approach using choline chloride:triethanolamine as a green, efficient and reusable deep eutectic solvent (DES) for Pd-catalysed O-arylation reactions with Pd/BaSO4 (10%). By using the unique properties of
Fatemeh Abbasi, Ali Reza Sardarian
doaj   +1 more source

Photochromic carbazole photoinitiators for precision visible‐light photopolymerization

open access: yesPolymer International, EarlyView.
New carbazole–naphthopyran derivatives were employed as visible‐light‐activated photoinitiators, enabling rapid and localized radical photopolymerization to produce well‐defined thin solid objects within minutes. Abstract Two carbazole derivatives, each incorporating a naphthopyran unit and an aromatic ketone, were synthesized and evaluated as ...
Mauro Magalhães   +3 more
wiley   +1 more source

Kinetic parameters of OPH mutants in the DFP hydrolysis with or without triethanolamine (TEA).

open access: yes, 2017
Kinetic parameters of OPH mutants in the DFP hydrolysis with or without triethanolamine (TEA).
Yongze Yuan (694074)   +5 more
core   +1 more source

Microbubble enhanced mass transfer efficiency of CO2 capture utilizing aqueous triethanolamine for enzymatic resorcinol carboxylation

open access: yes, 2021
The present study focuses on the aeration of aqueous triethanolamine acting as reaction medium for biocatalytic carboxylations. For enhancing mass transfer in a bubble column reactor, microbubble aeration is applied and compared to conventional ...
Thomas, Benjamin   +7 more
core   +1 more source

Covalent Functionalization of NiFe Layered Double Hydroxides using Tris(Hydroxymethyl)Aminomethane

open access: yesSmall, EarlyView.
Covalent functionalization of NiFe layered double hydroxides with tris(hydroxymethyl)aminomethane enables controlled growth, enhanced structural order, and improved processability. Temporary TRIS anchoring promotes stable water‐based inks and binder‐free electrode fabrication, leading to enhanced oxygen evolution activity and long‐term stability under ...
Alvaro Seijas Da Silva   +8 more
wiley   +1 more source

Technological concentration sensor for ethanolamines based on an optical sensor

open access: yesMATEC Web of Conferences, 2018
The most important parameters necessary for the precise control of the separation of monoethanolamine, diethanolamine, and triethanolamine on column distillation apparatus are their initial concentrations in the mixtures fed to the columns.
Maslennikov Aleksandr   +2 more
doaj   +1 more source

Ternary Diffusion Coefficients of Monoethanolamine and Triethanolamine in Aqueous Solutions Containing Monoethanolamine and Triethanolamine

open access: yesJOURNAL OF CHEMICAL ENGINEERING OF JAPAN, 2008
Ternary diffusion coefficients of monoethanolamine (MEA) and triethanolamine (TEA) in aqueous solutions containing MEA and TEA using the Taylor dispersion technique have been measured for temperatures 303.2, 308.2, and 313.2 K. The systems studied were aqueous solutions containing total amine concentrations of 2.0 and 3.0 kmol·m–3, each having three ...
Chang, Wen-Haur, Li, Meng-Hui
openaire   +1 more source

A cyclic voltammetric synthesis of ZnS thin films using triethanolamine as a complexing agent [PDF]

open access: yes, 2009
ZnS thin films have been synthesized by means of cyclic voltammetry technique. An aqueous solution of zinc chloride was used as Zn2+ source, sodium thiosulfate as S2- source and triethanolamine as complexing agent for depositing ZnS thin films.
Ho, Soon Min   +5 more
core  

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