Journal
DALTON TRANSACTIONS
Volume 40, Issue 24, Pages 6524-6531Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c0dt01763a
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- Agence Nationale de la Recherche (ANR) [MesAsColl/ANR-08-CP2D]
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Novel anionic species, such as hydrogen carbonate (HCO(3)(-)), fluoride (F(-)), triflate (CF(3)SO(3)(-)), tetrafluoroborate (BF(4)(-)) and chloride (Cl(-)) were investigated as new partners of water soluble N,N-dimethyl-N-cetyl-N-(2-hydroxyethyl) ammonium salts, used as a protective agent of rhodium colloids. The effect of the surfactant polar head on the micellar behavior, size and morphology of the nanospecies was studied by adapted physico-chemical experiments (surface tension measurements, dynamic light scattering, thermogravimetric and TEM analyses) and discussed in terms of strong or weak stabilization of the growing nanoparticles surface. Finally, the influence of the nanoenvironment generated by the surfactant with various counter-anions was evaluated via the hydrogenation of aromatics.
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