Gamma Radiolytic Formation of Alloyed Ag-Pt Nanocolloids
Figure 3
(a) TEM image and electron diffraction spot pattern obtained from Brij’97 capped Ag nanoparticles by gamma radiolysis. AgNO3 = [1 × 10−3 M], Brij’97 = [1 × 10−2 M], and 2-propanol = [2 × 10−1 M] irradiated with a dose of 1.9 kGy in an inert atmosphere. Corresponding size histogram inset of Ag particles. The solid line is a Gaussian fit to the PSD data. (b) TEM image and electron diffraction spot pattern obtained from Brij’97 capped Pt nanoparticles by gamma radiolysis. H2PtCl6 = [1 × 10−3 M], Brij’97 = [1 × 10−2 M], and 2-propanol = [2 × 10−1 M] in an inert atmosphere with a dose of 1.9 kGy corresponding size histogram inset for Pt particles. The solid line is a Gaussian fit to the PSD data. (c) TEM images and electron diffraction spot pattern obtained from Brij’97 capped of Ag-Pt particles by simultaneous reduction method. AgNO3 = [1 × 10−3 M], H2PtCl6 = [1 × 10−3 M], Brij’97 = [1 × 10−2 M], and 2-propanol = [2 × 10−1 M] irradiated with a dose of 7.9 kGy in an inert atmosphere, corresponding size histogram inset for Ag-Pt bimetallic nanoparticles. The solid line is a Gaussian fit to the PSD data.
