Paper Title:
TEM and Electron Tomography Imaging of Pt Particles Dispersed on Carbon Nanospheres
  Abstract

Three-dimensional (3D) observation of Pt nanoparticles on the surface of carbon nanoparticles, one of the important catalyst systems for energy storage such as fuel cells, was carried out by using an electron tomography system attached to a transmission electron microscope (TEM). In the Pt/carbon sample preparation process, pristine and graphitized carbon nanospheres (CNSs, 200 nm average diameter) were immersed into H2PtCl6 solution, followed by a heat-treatment at 493 K. According to the electron tomography technique, we confirmed that crystalline Pt particles (2-3 nm) were homogeneously dispersed on the whole surface of pristine CNSs, while on the graphitized CNSs Pt was aggregated on the ridgeline of the polyhedronized CNS particles or on the connecting surface between two CNS particles. Dependence of Pt dispersion as shown was discussed with the distribution of surface defects of CNS particles.

  Info
Periodical
Edited by
Guest Editors: Andreas Öchsner, Irina V. Belova and Graeme E. Murch
Pages
119-124
DOI
10.4028/www.scientific.net/JNanoR.11.119
Citation
N. Yoshizawa, Y. Soneda, H. Hatori, H. Ue, T. Abe, "TEM and Electron Tomography Imaging of Pt Particles Dispersed on Carbon Nanospheres", Journal of Nano Research, Vol. 11, pp. 119-124, 2010
Online since
May 2010
Export
Price
$35.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Urszula Narkiewicz, Marcin Podsiadły, Iwona Pełech, Waleran Arabczyk, M.J. Woźniak, Krzysztof Jan Kurzydlowski
Abstract:Nanocrystalline cobalt was carburised with ethylene in the range 340– 500°C to obtain Co(C) nanocapsules. The carbon deposit was reduced by...
249
Authors: Sergei K. Brantov, A.V. Eltzov, Olga V. Feklisova, Eugene B. Yakimov
Abstract:Characterization of defect structure in silicon ribbon grown on carbon foil has been carried out. The structure of grown Si layers and a...
473
Authors: Bao Min Sun, Yuan Chao Liu, Zhao Yong Ding
Abstract:Carbon nanotube is a new kind of carbon material. Synthesis of carbon nanotubes from V-type pyrolysis flame is a kind of novel technique. It...
104
Authors: Qian Zhang, Li Feng Dong
Chapter 9: Nano Materials
Abstract:A series of techniques, including field emission scanning electron microscopy, transmission electron microscopy, X-ray powder diffraction,...
1364
Authors: Lei Shan Chen
Chapter 2: Applications of Materials in Manufacturing Technologies, Materials Science and Engineering
Abstract:Carbon nanotubes based on anodic aluminum nano-templates embedded with different metal catalysts were synthesized and the influence on the...
534