High Performance PtRuIr Catalysts Supported on Carbon Nanotubes for the Anodic Oxidation of Methanol
- 22 February 2006
- journal article
- research article
- Published by American Chemical Society (ACS) in Journal of the American Chemical Society
- Vol. 128 (11), 3504-3505
- https://doi.org/10.1021/ja0578653
Abstract
We report the formation of a new PtRuIr catalyst using an organic colloid synthesis method, involving acetone as the solvent, ethylene glycol as the reducing agent, citrate as a complexing agent and stabilizer, and multiwall carbon nanotubes (CNT, diameter 8−10 nm) as the support. This catalyst has a very high real surface area and is highly active toward the oxidation of methanol, relevant to fuel cell applications. The Ir component appears to act as a promoter, and the splitting of the Pt(111) XRD feature into four peaks and the shift to larger d spacing reflect the high dispersion of the metallic components.Keywords
This publication has 9 references indexed in Scilit:
- Mixed-Metal Pt Monolayer Electrocatalysts for Enhanced Oxygen Reduction KineticsJournal of the American Chemical Society, 2005
- Effect of the Iridium Oxide Thin Film on the Electrochemical Activity of Platinum NanoparticlesLangmuir, 2004
- Size-Selected Synthesis of PtRu Nano-Catalysts: Reaction and Size Control MechanismJournal of the American Chemical Society, 2004
- Sol-Gel Derived Pt-Ir Mixed Catalysts for DMFC ApplicationsElectrochemical and Solid-State Letters, 2004
- Preparation of Colloidal Nanoparticles of Mixed Metal Oxides Containing Platinum, Ruthenium, Osmium, and Iridium and Their Use as ElectrocatalystsThe Journal of Physical Chemistry B, 2003
- A Pt−Ru/Graphitic Carbon Nanofiber Nanocomposite Exhibiting High Relative Performance as a Direct-Methanol Fuel Cell Anode CatalystThe Journal of Physical Chemistry B, 2001
- Binary and ternary anode catalyst formulations including the elements W, Sn and Mo for PEMFCs operated on methanol or reformate gasElectrochimica Acta, 1998
- On the real surface area of smooth solid electrodesElectrochimica Acta, 1997
- Mechanism and electrocatalysis in the direct methanol fuel cellCatalysis Today, 1997