期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 133, 期 14, 页码 5182-5185出版社
AMER CHEMICAL SOC
DOI: 10.1021/ja1112904
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资金
- NSF [CMMI-1000768]
- AFOSR [FA2386-10-1-4071, FA9550-09-1-0331]
- Div Of Civil, Mechanical, & Manufact Inn
- Directorate For Engineering [1000768] Funding Source: National Science Foundation
Having a strong electron-withdrawing ability, poly(diallyldimethylammonium chloride) (PDDA) was used to create net positive charge for carbon atoms in the nanotube carbon plane via intermolecular charge transfer. The resultant PDDA functionalized/adsorbed carbon nanotubes (CNTs), either in an aligned or nonaligned form, were demonstrated to act as metal-free catalysts for oxygen reduction reaction (ORR) in fuel cells with similar performance as Pt catalysts. The adsorption-induced intermolecular charge-transfer should provide a general approach to various carbon-based efficient metal-free ORR catalysts for oxygen reduction in fuel cells, and even new catalytic materials for applications beyond fuel cells.
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