Core–shell nanostructure electrodes for improved electrocatalytic properties in methanol electrooxidation

Autor: Young-Woo Lee, Seong-Bae Kim, Kyung-Won Park, Inchul Hwang, Jongmin Lee, Bumwook Roh, Do-Young Kim, Sang-Beom Han
Rok vydání: 2012
Předmět:
Zdroj: Applied Catalysis B: Environmental. :200-207
ISSN: 0926-3373
Popis: TiN@C nanostructure supports consist of TiN as a core prepared at 900 °C in NH 3 and carbon as a shell by heat treatment of the TiN at 900 °C in CH 4 for 1, 3, and 6 h (referred as TiN@C-1 h, TiN@C-3 h, and TiN@C-6 h). The thickness of the carbon shell layers in the TiN@C supports increase with increasing reaction time at 900 °C in CH 4 . In particular, the TiN@C-1 h supported Pt catalyst exhibits much improved electrocatalytic properties toward methanol electrooxidation as compared to Pt catalysts on Vulcan XC-72R.
Databáze: OpenAIRE