Results 191 to 200 of about 5,646 (218)
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Optimizing organoclay stabilized Pickering emulsions
Journal of Colloid and Interface Science, 2011Oil-in-water emulsions were prepared using montmorillonite clay platelets, pre-treated with quaternary amine surfactants. In previous work, cetyl trimethylammonium bromide (CTAB) has been used. In this study, two more hydrophilic quaternary amine surfactants, Berol R648 and Ethoquad C/12, were used and formed Pickering emulsions, which were more stable
Cui, Yannan +2 more
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A reinforced Pickering emulsion for cascade reactions
Chemical Communications, 2018Based on an interfacial sol–gel process, a novel reinforced Pickering emulsion has been developed successfully for one-pot cascade reactions involving incompatible catalysts.
Nan Xue +3 more
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Doubly pH-Responsive Pickering Emulsion
Langmuir, 2008A pH-responsive Pickering emulsion has been designed on the basis of commercially available alumina-coated silica nanoparticles (Ludox CL silica particles) and potassium hydrogen phthalate (KHP). KHP was found to bind to cationic particle surfaces at pH values between 3.5 and 5.5, enabling the resulting surface-active particles to stabilize emulsions ...
Jian, Li, Harald D H, Stöver
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Pickering Emulsions Stabilized by Nanoparticle Surfactants
Langmuir, 2012Amphiphilic gold nanoparticles are demonstrated to effectively stabilize emulsions of hexadecane in water. Nanoparticle surfactants are synthesized using a simple and scalable one-pot method that involves the sequential functionalization of particle surfaces with thiol-terminated polyethylene glycol (PEG) chains and short alkane-thiol molecules.
Kjersta, Larson-Smith, Danilo C, Pozzo
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Emulsions stabilized with solid nanoparticles: Pickering emulsions
Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2013Pickering emulsions are attractive formulations because they are simple and bear strong similarities with the well-known surfactant-based emulsions. Pickering emulsions have been largely ignored since their early disclosure in 1907 and arouse a renewed interest quite recently.
Yves Chevalier +1 more
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Interfacial Effects of Catalysis in Pickering Emulsions
The Journal of Physical Chemistry LettersLiquid-liquid or gas-liquid interfaces are ubiquitous in nature and in industrial production. Understanding the unique effects arising from the asymmetric interfaces and controlling the catalytic reactions are frontiers of physical chemistry. However, our understanding of the reactivity and selectivity at the interfaces remains scant.
Jun Tang +3 more
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