Carbon-Supported Pt and PtRu Nanoparticles as Catalysts for a Direct Methanol Fuel Cell
National University of Singapore · Institute of Materials Research and Engineering
Abstract
Nanosized Pt and PtRu colloids were prepared by a microwave-assisted polyol process and transferred to a toluene solution of decanthiol. Vulcan XC-72 was then added to the toluene solution to adsorb the thiolated Pt and PtRu colloids. TEM examinations showed nearly spherical particles and narrow size distributions for both supported and unsupported metals. The carbon-supported Pt and PtRu nanoparticles were activated by thermal treatment to remove the thiol stabilizing shell. All Pt and PtRu catalysts (except Pt23Ru77) showed the X-ray diffraction pattern of a face-centered cubic (fcc) crystal structure, whereas the Pt23Ru77 alloy was more typical of the hexagonal close-packed (hcp) structure. The…
Citation impact
- FWCI
- 24.44
- Percentile
- 100%
- References
- 23
Authors
4- ZLZhaolin LiuCorresponding
National University of Singapore, Institute of Materials Research and Engineering
- XYXing Yi Ling
Institute of Materials Research and Engineering, National University of Singapore
- XSXiaodi Su
National University of Singapore, Institute of Materials Research and Engineering
- JYJim Yang Lee
Institute of Materials Research and Engineering, National University of Singapore
Topics & keywords
- Chronoamperometry
- Catalysis
- Methanol
- Materials science
- Cyclic voltammetry
- Nanoparticle
- Linear sweep voltammetry
- Platinum