期刊
JOURNAL OF PHYSICAL CHEMISTRY C
卷 117, 期 11, 页码 5752-5757出版社
AMER CHEMICAL SOC
DOI: 10.1021/jp311896q
关键词
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资金
- Exotic Nanocarbons, Japan Regional Innovation Strategy Program by the Excellence, JST
- Partnership University Fund (PUF)
- European Research Council [ERC-2011-AdG, 291543-IONACES]
- Grants-in-Aid for Scientific Research [24550017, 25620140, 23350072] Funding Source: KAKEN
We report the vertical alignment of propylene carbonate (PC) molecules interacting with Et4N+ and BF4- which are confined in extremely narrow slit pores (w similar to 0.7 nm) of carbide-derived carbon and pitch-based activated carbon fiber. On the basis of X-ray diffraction (XRD), electron radial distribution function analysis reveals that the nearest PC-PC distance is 0.05-0.06 nm shorter than that in the bulk solution, indicating dense packing of PC molecules in the pores. This confinement effect results from the vertically aligned PC molecules, which are indicated by the reverse Monte Carlo analysis. The ensemble structure of PC molecules in the subnanometer carbon pores will provide better understanding the supercapacitor function.
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