Title :
Structural dynamics of lead nanoparticles with stable metallic surfaces on PbxSr1−xTiO3 prepared by co-precipitation
Author :
Kano, Jun ; Kizuka, Tokushi ; Shikanai, Fumihito ; Kojima, Seiji
Author_Institution :
Inst. of Mater. Sci., Univ. of Tsukuba, Tsukuba, Japan
Abstract :
An efficient fabrication method for pure lead nanoparticles supported on lead-based perovskite particles has been developed using co-precipitation. The annealing of the co-precipitates in air at 600°C produced lead nanoparticles with non-oxidized and non-contaminated surfaces. High-resolution transmission electron microscopy revealed that the pure lead nanoparticles with an average size of ~4 nm showed structural fluctuations under an intense electron beam irradiation, similar to gold and platinum nanoparticles. This result implied that the lead nanoparticles prepared by this co-precipitation process are expected to be used as catalysts.
Keywords :
annealing; electron beam effects; lead; lead compounds; nanofabrication; nanoparticles; precipitation; strontium compounds; transmission electron microscopy; Pb; PbxSr1-xTiO3; annealing; catalysts; co-precipitation; electron beam irradiation; high-resolution transmission electron microscopy; lead nanoparticles; lead-based perovskite particles; noncontaminated surfaces; nonoxidized surfaces; stable metallic surfaces; structural fluctuations; temperature 600 degC; Annealing; Crystallization; Electron beams; Fluctuations; Gold; Lead; Nanoparticles; Temperature; Transmission electron microscopy; X-ray diffraction; co-precipitation; highresolution stransmission electron microscopy; lead; nanoparticles; structural fluctuations;
Conference_Titel :
Nanotechnology, 2009. IEEE-NANO 2009. 9th IEEE Conference on
Conference_Location :
Genoa
Print_ISBN :
978-1-4244-4832-6
Electronic_ISBN :
1944-9399
