Preparation of platinum nanoparticles on carbon nanostructures using metal-organic chemical fluid deposition employing supercritical carbon dioxide

Mineo Hiramatsu; Takuma Machino; Kota Mase; Masaru Hori; Hiroyuki Kano

doi:10.1166/jnn.2010.1996

Preparation of platinum nanoparticles on carbon nanostructures using metal-organic chemical fluid deposition employing supercritical carbon dioxide

J Nanosci Nanotechnol. 2010 Jun;10(6):4023-9. doi: 10.1166/jnn.2010.1996.

Authors

Mineo Hiramatsu¹, Takuma Machino, Kota Mase, Masaru Hori, Hiroyuki Kano

Affiliation

¹ Department of Electrical and Electronic Engineering, Meijo University, Tempaku, Nagoya 468-8502, Japan.

PMID: 20355408
DOI: 10.1166/jnn.2010.1996

Abstract

We developed a formation method of platinum (Pt) nanoparticles by the metal-organic chemical fluid deposition (MOCFD) employing supercritical fluid (SCF), and demonstrate the synthesis of dispersed Pt nanoparticles on the surface of aligned carbon nanotubes and carbon nanowalls, two-dimensional carbon nanostructures standing vertically on the substrate. By using the SCF-MOCFD employing a supercritical carbon dioxide as a solvent of metal-organic compound ((methylcyclopentadienyl)trimethyl platinum: MeCpPtMe3), highly dispersed Pt nanoparticles of 2 nm size were deposited on the entire surface of carbon nanotubes and carbon nanowalls. The formation of Pt nanoparticles on the surface of carbon nanostructures occurred at relatively low temperatures above 120 degrees C. Furthermore, the number density of Pt nanoparticles increased with the increase of temperature.