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Electrochemical properties of Pd nanostructures in alkaline solution
- Authors
- Lee, Young-Woo; Han, Sang-Beom; Park, Kyung-Won
- Issue Date
- Oct-2009
- Publisher
- ELSEVIER SCIENCE INC
- Keywords
- Pd nanostructures; Methanol electrooxidation; Catalytic activity; Stability
- Citation
- ELECTROCHEMISTRY COMMUNICATIONS, v.11, no.10, pp.1968 - 1971
- Journal Title
- ELECTROCHEMISTRY COMMUNICATIONS
- Volume
- 11
- Number
- 10
- Start Page
- 1968
- End Page
- 1971
- ISSN
- 1388-2481
- Abstract
- We report Pd nanoparticles on Vulcan XC-72R (Pd/C) synthesized by means of polyol process in poly(vinyl pyrrolidone) and NO(3)(-) ion. In X-ray diffraction (XRD) and transmission electron microscopy (TEM) analysis, the Pd/C consists of polygonal shapes such as dodecahedron, triangular, and hexagonal plates with dominant (1 1 1) plane. In cyclic voltammogram (CV), the polygonal Pd/C shows two reduction peaks as an evidence of dominant (1 1 11 facets of the Pd metallic phase. Furthermore, for methanol electrooxidation, the polygonal Pd/C despite slightly positive onset potential shows improved current-density and less accumulation of residues. Especially, the polygonal Pd/C without any serious agglomeration exhibits an excellent stability in comparison with commercial Pd/C. (C) 2009 Elsevier B.V. All rights reserved.
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Related Researcher
- PARK, KYUNG WON
- College of Engineering (Department of Chemical)