CALORIMETRIC INVESTIGATION ON THE FORMATION OF PALLADIUM NANOPARTICLES IN WATER

2020-03-26 14:39:32

water nanoparticles AOT palladium

责任者: ARCOLEO, V;CAVALLARO, G;LAMANNA, G;LIVERI, VT 单位: UNIV PALERMO,DIPARTIMENTO CHIM FIS,I-90123 PALERMO,ITALY. 来源出处: THERMOCHIMICA ACTA, v 254, APR 15 1995, p 111- 119 摘要: The formation enthalpy of palladium nanoparticles in water/sodium bis(2-ethylhexyl) sulfosuccinate (AOT)/n-heptane microemulsions as a function of the water/AOT molar ratio (R = [water]/[AOT]) was measured by a calorimetric technique. The results indicate that at R < 10 the energetic state of the palladium nanoparticles compartmentalized within the reversed AOT micelles is signficantly different from that in bulk water. Effects due to the small size of the palladium nanoparticles and to interactions between nanoparticles and the water/AOT interface are discussed. 关键词: AOT; HEPTANE; MICROEMULSION; NANOPARTICLES; PALLADIUM; TERNARY SYSTEM; WATER WATER; COLLOIDAL METAL PARTICLES; MICRO-EMULSIONS; MICELLES; SYSTEM; INSITU