Kinetically Controlled Synthesis of Triangular and Hexagonal Nanoplates of Palladium and Their SPR/SERS Properties
University of Washington · Institute of Physics · +2 more institutions
Abstract
The rapid reduction of Na(2)PdCl(4) by ethylene glycol in the presence of poly(vinyl pyrrolidone) (PVP) has recently been demonstrated as a convenient method of generating Pd cubooctahedra and twinned nanoparticles. Here we describe a new procedure where Pd triangular or hexagonal nanoplates could be selectively synthesized by manipulating the reduction kinetics of the polyol process. More specifically, the reduction rate was substantially reduced through the introduction of Fe(III) species and the O(2)/Cl(-) pair, two wet etchants for Pd(0). The etching power of the O(2)/Cl(-) pair could be further enhanced by adding an acid to lower the pH of the reaction solution. Unlike the previously reported synthesis of…
Citation impact
- FWCI
- 21.78
- Percentile
- 100%
- References
- 59
Authors
6- YXYujie XiongCorresponding
University of Washington, Institute of Physics, Chinese Academy of Sciences, Lawrence Berkeley National Laboratory
- JMJoseph M. McLellan
Chinese Academy of Sciences, Lawrence Berkeley National Laboratory, Institute of Physics, University of Washington
- JCJingyi Chen
Chinese Academy of Sciences, University of Washington, Institute of Physics, Lawrence Berkeley National Laboratory
- YYYadong Yin
Lawrence Berkeley National Laboratory, Chinese Academy of Sciences, Institute of Physics, University of Washington
- ZLZhiyuan Li
University of Washington, Chinese Academy of Sciences, Institute of Physics, Lawrence Berkeley National Laboratory
Topics & keywords
- Chemistry
- Discrete dipole approximation
- Ethylene glycol
- Surface plasmon resonance
- Palladium
- Nanoparticle
- Hexagonal crystal system
- Raman scattering