Results 91 to 100 of about 979,553 (324)
Evaluation of new surfactants for enhanced oil recovery applications in high-temperature reservoirs
Journal of Petroleum Exploration and Production Technology, 2019 Surfactants have been successfully used for enhanced or improved oil recovery in reservoirs having mild conditions (low temperature, low salinity). Reservoirs having harsh conditions, however, offer unique challenges in that most surfactants precipitate ...
Nazliah Nazma Zulkifli +5 more
doaj +1 more source
Aggregation mechanism of colloidal kaolinite in aqueous solutions with electrolyte and surfactants.
PLoS ONE, 2020 In this study, the effect of surfactants and electrolytes on stability of kaolinite dispersions was analyzed by measuring suspension transmittance, zeta potential, and adsorption.
Yang Hu +4 more
doaj +1 more source
The use of surfactants in enhanced oil recovery: A review of recent advances
Energy Reports, 2020 Currently, there is a widespread interest in the different methods of chemical enhanced oil recovery (EOR) as a result of the continuous decline in the conventional oil reserves and the accelerated increase in the global energy demand.
Osama Massarweh, Ahmad S. Abushaikha
doaj +1 more source
High surface area, emulsion-templated carbon foams by activation of polyHIPEs derived from Pickering emulsions. [PDF]
, 2016 Carbon foams displaying hierarchical porosity and excellent surface areas of >1400 m2/g can be produced by the activation of macroporous poly(divinylbenzene).
Bismarck, A +3 more
core +2 more sources
Drop deformation under surfactants adsorption [PDF]
PAMM, 2007 AbstractThe movements of free liquid drops, resulting from unbalanced surface tension gradients, in our case the adsorption of a surfactant, constitute important surface phenomena (Marangoni effect). The aim of this paper is to correlate the effect of pressure forces on the drop, with the surface coverage degree, namely with the extent to which the ...
Ioan‐Raducan Stan +2 more
openaire +1 more source
Advanced Functional Materials, EarlyView.This work presents self‐propelled CRISPR/Cas9‐functionalized Au–MRs for rapid, amplification‐free, “on‐the‐fly” DNA detection. By harnessing motion‐assisted signal recovery, the platform achieved the limit of detection in low fM DNA concentrations, enabling detection across a wide dynamic range within only 5 min, which is significantly faster than any ...
Jyoti +3 more
wiley +1 more source
Chinese Journal of Magnetic Resonance, 2019 As revealed by 1H NMR experiments, the critical micelle concentration (CMC) of a surfactant in the aqueous solution decreases when a surfactant of different type is mixed in, a phenomenon that has been explained by the adsorption equilibrium theory.
CHEN Xiao-ying +4 more
doaj +1 more source
Aqueous Foams Stabilized by Hydrophilic Silica Nanoparticles via In-Situ Physisorption of Nonionic TX100 Surfactant [PDF]
Iranica Journal of Energy and Environment, 2013 This paper present the study of aqueous CO foam prepared 2 by a mixtures hydrophilic silica nanoparticles and non-ionic Triton X100, TX100, surfactant.
Suriatie Yusuf +2 more
doaj +1 more source
Highly permeable macroporous polymers synthesized from pickering medium and high internal phase emulsion templates [PDF]
, 2010 Open porous poly-Plckerlng-M/HIPEs with permeabilities of up to 2.6 D were prepared by polymerisation of PickeringM/HIPEs to which small amounts of surfactant were added.
Akartuna +25 more
core +1 more source
Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76)
Advanced Functional Materials, EarlyView.Luminescent MOF‐76 materials based on Eu(III) and mixed Eu(III)/Y(III) show rapid and reversible changes in emission intensity in response to O2 with very short response times. The effect is based on triplet quenching of the linker ligands that act as photosensitizers. Average emission lifetimes of a few milliseconds turn out to be mostly unaffected by
Zhenyu Zhao +5 more
wiley +1 more source