Benzene hydrogenation was investigated in the presence of a surface monolayer consisting of Pt nanoparticles of different shapes (cubic and cuboctahedral) and tetradecyltrimethylammonium bromide (TTAB). Infrared spectroscopy indicated that TTAB binds to the Pt surface through a weak C-H...Pt bond of the alkyl chain. The catalytic selectivity was found to be strongly affected by the nanoparticle...

In the paper the results of experimental studies on the sedimentation process of barium carbonate (of mean particles diameter of 25 [μm]) in aqueous solutions of tetradecyltrimethylammonium bromide, have been presented. As the additives assisting in micellar association the sodium bromide and sodium salicylate, have been used. The sedimentation tests were carried out in the transparent cylinder...

We study the sponge phase of the mixed non-ionic/ionic surfactant system C14DMAO-TTAB-hexanol-brine. Our aim is to determine if this phase exists in this mixed system and if it preserves or changes its structure when the relative amount of the charged surfactant is increased in the mixture. SAXS, FFEM, and conductivity results show that for the same bilayer volume fraction the sponge phase pres...

In the present  paper Electrical Conductivity (EC) of Colloidal Gas Aphron (CGA) suspensions was measured for anionic and cationic surfactants (Sodium Dodecyl Sulfate (SDS) and Tetradecyl Trimethyl Ammonium Bromide (TTAB)). Experiments were made for different concentrations of SDS (6, 8.1, 10 mM) and TTAB (2, 3.51, 5 mM). CGA drainage behavior was observed and measured using 1 liter measuri...

We report the catalytic activity of colloid platinum nanoparticles synthesized with different organic capping layers. On the molecular scale, the porous organic layers have open spaces that permit the reactant and product molecules to reach the metal surface. We carried out CO oxidation on several platinum nanoparticle systems capped with various organic molecules to investigate the role of the...

BAC THIS DISPOSITION IS NOT CITABLE AS PRECEDENT OF THE TTAB AUG. 18, 99 U.S. DEPARTMENT OF COMMERCE PATENT AND TRADEMARK OFFICE ________ Trademark Trial and Appeal Board ________ In re Liebel-Flarsheim Company ________ Serial No. 75/094,858 ______ Donald F. Frei of Wood, Herron & Evans, L.L.P. for LiebelFlarsheim Company. Jennifer Stiver Chicoski, Trademark Examining Attorney, Law Office 105 (...

Pemahaman konsep geometri pada anak penting untuk dikembangkan karena dalam kehidupan sehari-hari cenderung sering kita perlukan, melalui mampu mengembangkan kemampuan pemecahan masalah. Penelitian ini bertujuan pemahaman usia dini pembelajaran berbasis STEAM. Pendekatan penelitian yang digunakan adalah pendekatan kuantitatif dengan desain pre experiment one group pretest posttest. Teknik pengu...

The intriguing role of the presence solutes in activity a self-propelling droplet is investigated. A system micrometer-sized 4-Cyano-4?-pentylbiphenyl (5CB) droplets an aqueous solution tetradecyltrimethylammonium bromide (TTAB) as surfactant considered. It shown that addition glycerol causes active 5CB to exhibit transition from smooth jittery motion. motion found be independent size and nemat...