Results 71 to 80 of about 979,553 (324)

Preparation and evaluation of amido poly amine surfactant based on Melia azedarach seeds oil as corrosion inhibitor of C-steel in 2.0 M HCl pickling medium

open access: yesGreen Chemistry Letters and Reviews, 2017
Oil of Melia azedarach seeds (MA-oil) was extracted and modified in the form of amido poly amine surfactant (MA-amido surfactant). The surface active properties of the new MA-amido surfactant were analyzed. Corrosion inhibition of C-steel in 2.0 M HCl by
Asmaa A. I. Ali, Wagdy I. A. El-Dougdoug
doaj   +1 more source

Performance evaluation of surfactant modified kaolin clay in As(III) and As(V) adsorption from groundwater: adsorption kinetics, isotherms and thermodynamics

open access: yesHeliyon, 2019
In this paper surfactant modified kaolin clay for As(III) and As(V) was prepared by intercalating hexadecyltrimethylamonium bromide (HDTMA-Br) cationic surfactant onto the clay interlayers.
Rabelani Mudzielwana   +2 more
doaj   +1 more source

Theoretical Description of the Role of Halides, Silver, and Surfactants on the Structure of Gold Nanorods [PDF]

open access: yes, 2014
Density functional theory simulations including dispersion provide an atomistic description of the role of different compounds in the synthesis of gold-nanorods.
G. Novell-Leruth   +4 more
core   +1 more source

Enhancing Direct Solar Water Splitting via ALD of Multifunctional TiO2/Pt Nanoparticle Coatings With Engineered Interfaces to GaAs/GaInP Tandem Cells

open access: yesAdvanced Functional Materials, EarlyView.
Multifunctional atomic layer deposited coatings and interface treatments enhance direct solar water splitting on GaAs/GaInP tandem cells. Optimized TiO2/Pt nanoparticle bilayers ensure durability and catalytic efficiency with minimal optical losses, while H2 plasma pretreatments maximize photovoltage and interfacial charge extraction.
Tim F. Rieth   +8 more
wiley   +1 more source

Traces of surfactants can severely limit the drag reduction of superhydrophobic surfaces [PDF]

open access: yes, 2017
Superhydrophobic surfaces (SHSs) have the potential to achieve large drag reduction for internal and external flow applications. However, experiments have shown inconsistent results, with many studies reporting significantly reduced performance. Recently,
Goldstein, Raymond E.   +3 more
core   +2 more sources

Synergistic Adsorption Mechanism of Anionic and Cationic Surfactant Mixtures on Low-Rank Coal Flotation

open access: yesACS Omega, 2020
Mixed surfactants have a prominent synergistic effect and show advantages in many aspects. In this work, the effects of a mixture of dodecyltrimethylammonium bromide (DTAB) and sodium dodecyl sulfate (SDS) on the flotation of low-rank coal were studied ...
Rui Zhang   +8 more
semanticscholar   +1 more source

Kinetic Insights into Precursor‐Assisted Soft Sphere Close Packing Revealed by In Situ GISAXS with Implications for Gas Sensing

open access: yesAdvanced Functional Materials, EarlyView.
The versatile precursor‐assisted soft sphere close packing during slot‐die coating is investigated with in situ X‐ray scattering. The soft crystallization pathways towards a close packing involve multistep structural transitions such as surface nucleation, in‐plane, and out‐of‐plane crystallization.
Guangjiu Pan   +14 more
wiley   +1 more source

Interfacial Properties of Tridecyl Dimethyl Phosphine Oxide Adsorbed at the Surface of a Solution Drop in Hexane Saturated Air

open access: yesColloids and Interfaces, 2020
The surface tension of C13DMPO aqueous solution drops in hexane vapor is studied using the drop profile method. The hexane was injected into the measuring cell at three different conditions: before the formation of the solution drop, at a certain moment ...
Valentin B. Fainerman   +7 more
doaj   +1 more source

Surfactants employed in conventional and unconventional reservoirs for enhanced oil recovery—A review

open access: yesEnergy Reports, 2022
Due to the continuous depletion of crude oils in the reserves, and continuous rise in energy demand, there is currently a widespread interest in various methods of chemical enhanced oil recovery (EOR).
Oguntade Tomiwa Isaac   +3 more
doaj   +1 more source

Pickering emulsions stabilized by hydrophilic nanoparticles: in situ surface modification by oil [PDF]

open access: yes, 2016
We propose a novel route for the stabilization of oil-in-water Pickering emulsions using inherently hydrophilic nanoparticles. In the case of dialkyl adipate oils, in situ hydrophobisation of the particles by dissolved oil molecules in the aqueous phase ...
Binks, Bernard P., Yin, Dezhong
core   +1 more source

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