Understanding the role of oxidative etching in the polyol synthesis of Pd nanoparticles with uniform shape and size.
Uniform cubooctahedral nanoparticles of Pd were synthesized using a modified polyol process. Like the silver system, the Pd nanoparticles underwent dissolution due to oxidative etching by Cl-/O2. In the early stage of etching, the twinned particles in a sample were selectively removed to leave behind uniform, single-crystal cubooctahedra. If the etching was allowed to continue, the single-crystal cubooctahedra were also attacked and partially dissolved. Understanding the role of oxidative etching is critical to the achievement of both uniform shape and size.
Xiong
Yujie
Y
Department of Chemistry, University of Washington, Seattle, 98195-1700, USA.
Chen
Jingyi
J
Wiley
Benjamin
B
Xia
Younan
Y
Aloni
Shaul
S
Yin
Yadong
Y
D019855:Ethylene Glycol / Q000737:chemistry*; D046529:Microscopy, Electron, Transmission; D049329:Nanostructures / Q000737:chemistry*; D010084:Oxidation-Reduction; D010165:Palladium / Q000737:chemistry*; D011205:Povidone / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet
D010165:Palladium; D019855:Ethylene Glycol; D011205:Povidone