期刊
CHEMISTRY LETTERS
卷 38, 期 4, 页码 346-347出版社
CHEMICAL SOC JAPAN
DOI: 10.1246/cl.2009.346
关键词
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资金
- Fuel Cell Promotion Office of Agency of Natural Resources and Energy
- Ministry of Economy
- Trade and Industry (METI)
- New Energy
- Industrial Technology Development Organization (NEDO)
Pt nanoparticles were deposited on mesoporous carbon support using two different Pt precursors, and the difference in mass activity toward oxygen reduction between the two was successfully examined through direct observation of Pt nanoparticles inside the mesopores. Existence of 1-nni-sized Pt particles on the wall of mesopores was observed, and catalytic activity was hi-her if the size of Pt particles inside the pores was smaller. The size and stability of Pt catalysts encapsulated in nanospace is key for catalytic activity.
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