Abstract
This study was described that radiolytic loading of Pt-Ru nanoparticle onto porous carbons by using γ-irradiation for methanol-oxidation catalysts. The radiolytic loading of the Pt-Ru nanoparticles was follows: Method I. The porous carbons were synthesized against removal of colloidal silica crystalline templates by carbonization of poly(styrene) as carbon precursor. Subsequently, the Pt-Ru nanoparticles were loaded on the porous carbon by using γ-irradiation. Method II. The Pt-Ru alloy nanoparticle was loaded on the surface of SiO2 nanoparticles as template by γ-irradiation (Pt-Ru@SiO2). Subsequently, the Pt-Ru@SiO2 was fabricated in order to prepare the order porous carbon. Finally, the Pt-Ru nanoparticle/porous carbon was prepared by etching using HF after carbonation of poly(styrene). The catalysts prepared by Methods I and II were characterized by EF-TEM, FE-TEM, CO stripping, and methanol oxidation.
| Original language | English |
|---|---|
| Pages (from-to) | 393-397 |
| Number of pages | 5 |
| Journal | Colloids and Surfaces A: Physicochemical and Engineering Aspects |
| Volume | 313-314 |
| DOIs | |
| State | Published - Feb 1 2008 |
| Externally published | Yes |
Funding
This study was supported by Korea Institute of Science & Technology Evaluation and Planning (KISTEP) and Ministry of Science & Technology (MOST), Korean government, through its National Nuclear Technology Program. In particular, the authors thank the Korea Basic Science Institute (KBSI) for FE-TEM measurements.
| Funders | Funder number |
|---|---|
| Korea Institute of Science & Technology Evaluation and Planning | |
| National Nuclear Technology Program | |
| Ministry of Science and Technology of the People's Republic of China |
Keywords
- CO stripping
- Catalyst support
- Catalysts
- Direct methanol fuel cell
- Methanol oxidation
- Porous carbons
- Radiation loading
