| 학회 | 한국고분자학회 |
| 학술대회 | 2005년 가을 (10/13 ~ 10/14, 제주 ICC) |
| 권호 | 30권 2호 |
| 발표분야 | 탄소나노튜브 및 고분자 복합재료 |
| 제목 | Platinum Deposition on Multi-walled Carbon Nanotubes |
| 초록 | Since Iijima had found in 1991, multi-walled carbon nanotubes (MWCNTs) have used for research in various fields due to their special mechanical and electronic properties. Because MWCNTs show high surface area and high electrical conductivity, they can be applied to the electrode materials such as catalyst supports for fuel cells. To use the platinum (Pt) for electrocatalyst of fuel cell system, nanosized Pt particles must be dispersed on MWCNTs uniformly. In this report, we compared characteristics of electrocatalysts as deposition methods on MWCNTs. After MWCNT surfaces were oxidized by HNO3 or HNO3/H2SO4, Pt reduction process was carried out with reducing agents by colloidal method. Aqueous media and ethylene glycol media were applied for colloidal method, respectively. To characterize Pt particle structure and size, we measured with high-resolution transmission electron microscope (HRTEM) and X-ray diffraction (XRD). X-ray photoelectron spectroscopy (XPS) analyses were performed to characterize oxidized MWCNTs and Pt deposited MWCNTs. Also, the catalytic activity of each electrocatalysts was evaluated by potentiostat in the cyclic voltammetry mode. |
| 저자 | 공병선1, 정희태2, 김대환1, 김동래1 |
| 소속 | 1KCC 중앙(연), 2한국과학기술원 생명화학공학과 |
| 키워드 | multi-walled carbon nanotube; platinum; electrocatalyst; fuel cell |
