Related Experiment Video
Updated: Jan 27, 2026

Synthesis and Functionalization of Nitrogen-doped Carbon Nanotube Cups with Gold Nanoparticles as Cork Stoppers
Published on: May 13, 2013
Enhanced oxygen reduction reaction performance of size-controlled Pt nanoparticles on polypyrrole-functionalized
Kentaro Ichihashi1, Satoshi Muratsugu1, Shota Miyamoto1
1Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa, Nagoya, Aichi 464-8602, Japan. smuratsugu@chem.nagoya-u.ac.jp.
Abstract:
Size-controlled Pt nanoparticles were prepared on multi-wall carbon nanotubes (MWCNTs) decorated with polypyrrole matrix overlayers and exhibited superior oxygen reduction reaction (ORR) performance as electrocatalysts. The copolymerization of a new Pt4-pyrrole complex and pyrrole monomer in the presence of MWCNTs produced size-controlled Pt nanoparticles with diameters of 1.5 ± 0.5 nm. The present size-controlled Pt nanoparticles showed better durability than non-regulated Pt nanoparticles without polypyrrole and a commercial Pt/C catalyst during the ORR at the fuel cell cathode without substantial aggregation of the size-controlled Pt nanoparticles.
Related Concept Videos
Oxidation-Reduction Reactions
Phase I Reactions: Reductive Reactions
Reactions at the Benzylic Position: Oxidation and Reduction
Synthesis and Decomposition Reactions
Precipitate Formation and Particle Size Control
The obtained precipitate should be either a pure substance of known composition or easily converted to one by a simple process, such as ignition or drying. In addition, the precipitate should be insoluble and easily filterable. In general, filterability...
Alkenes via Reductive Coupling of Aldehydes or Ketones: McMurry Reaction

