| 학회 |
한국화학공학회 |
| 학술대회 |
2009년 가을 (10/22 ~ 10/23, 일산 KINTEX) |
| 권호 |
15권 2호, p.2295 |
| 발표분야 |
촉매 및 반응공학 |
| 제목 |
Preparation of Ultrastable Pt nanoparticles on the sulfur-containing oredered mesoporous carbon support |
| 초록 |
Afacile route for the preparationof ordered mesoporous carbon (OMC) containing sulfur atoms inside the framework is developed. p-Toluene sulfonic acid (TSA) is used as both of carbon precursor with S-C bond andcarbonization catalyst instead of sulfuric acid. After sysnthesis of the sulfur-containing OMC (S-OMC), Pt nanoparticles wasintroducedwith 60 wt% onto the S-OMC by modified polyol process.The Pt nanoparticles in the S-OMC exhibited extraordinarily high thermal stability, which might be due to the metal-support interaction induced by the sulfur atoms in the framework of the S-OMC. After heat treatment at 600oC, the particle size of Pt in the S-OMC was maintained below 5nm, while the particle sizes of Pt in the OMC and conventional carbon black exceeded 8nm and 25nm, respectively. XPS spectra suggested that the S atom interacted strongly with Pt nanoparticles and modified slightly the electronic structure of Pt nanoparticles. The electrochemical stability of Pt nanoparticles in S-OMC support was also investigated. |
| 저자 |
박찬호1, 유대종1, 권경중1, 진선아1, 이형익2, 김지만2, 장 혁1
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| 소속 |
1삼성전자 종합기술원, 2성균관대 |
| 키워드 |
Pt; ordered mesoporous carbon; sulfur; strong metal support interaction
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| E-Mail |
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| 원문파일 |
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