Polypyrrole-modified graphitized carbon black as a catalyst support for methanol oxidation

[Display omitted] ► The surface of the graphitized carbon black (GCB) was modified by polypyrrole. ► Carbonization of polypyrrole led to nitrogen doping of the GCB surface. ► The nitrogen doping allowed uniform loading of Pt catalysts on the GCB surface. ► The Pt-loaded GCB support was applied to el...

Full description

Saved in:
Bibliographic Details
Published in:Applied catalysis. A, General General, 2011-12, Vol.409, p.156-161
Main Authors: Jeon, Sang Soo, Han, Won Bae, An, Hyeun Hwan, Im, Seung Soon, Yoon, Chong Seung
Format: Article
Language:English
Subjects:
Applied sciences
Carbon black
Catalysis
Catalysts
Chemistry
Colloidal state and disperse state
Dispersions
Energy
Energy. Thermal use of fuels
Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc
Exact sciences and technology
Fuel cells
General and physical chemistry
Graphitization
Graphitized carbon black
Methanol electro-oxidation
Methyl alcohol
Nanoparticles
Physical and chemical studies. Granulometry. Electrokinetic phenomena
Platinum
Surface chemistry
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:[Display omitted] ► The surface of the graphitized carbon black (GCB) was modified by polypyrrole. ► Carbonization of polypyrrole led to nitrogen doping of the GCB surface. ► The nitrogen doping allowed uniform loading of Pt catalysts on the GCB surface. ► The Pt-loaded GCB support was applied to electro-oxidation of methanol. ► The surface modification enhanced the catalytic activity and the CO-tolerance. Surface-modified graphitized carbon black (GCB) was produced through carbonization of polypyrrole (Ppy) on the GCB surface to be used as a catalyst support for Pt nanoparticles in electro-oxidation of methanol. The Ppy modification led to the enhancement of the catalytic activity for the Pt catalysts. The improvement is largely attributed to uniform dispersion of the Pt nanoparticles as the Ppy modification appears to reduce the agglomeration of the Pt nanoparticles. The chronoamperometry and the accelerated cycling tests indicated that the Ppy modification did not improve the long-term stability of the GCB support for Pt.
ISSN:0926-860X
1873-3875
DOI:10.1016/j.apcata.2011.09.044