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Author Sun, Huayan ♦ Wang, Qing ♦ Guo, Yongmin ♦ Li, Baozong ♦ Li, Yi ♦ Yang, Yonggang
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword MATERIALS SCIENCE ♦ CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ♦ CARBON ♦ CARBONIZATION ♦ CONCENTRATION RATIO ♦ ETHANOL ♦ FIELD EMISSION ♦ FORMALDEHYDE ♦ MAGNETIC CIRCULAR DICHROISM ♦ MOLECULAR WEIGHT ♦ NANOTUBES ♦ OPTICAL ACTIVITY ♦ RAMAN SPECTROSCOPY ♦ RESINS ♦ SCANNING ELECTRON MICROSCOPY ♦ SENSORS ♦ SOL-GEL PROCESS ♦ TRANSMISSION ELECTRON MICROSCOPY ♦ X-RAY DIFFRACTION
Abstract Highlights: • 3-aminophenol-formaldeyde resins were prepared through a templating method. • A pair of cationic gelators have been used as the templates. • Single-handed helical carbonaceous nanotubes were obtained after carbonization. • The carbonaceous nanotubes showed optical activity. - Abstract: We design a facile route to obtain enantiopure carbonaceous nanostructures, which have potential application as chiral sensors, electromagnetic wave absorbers, and asymmetric catalysts. A pair of cationic low molecular weight gelators was synthesized, which were able to self-assemble into twisted nanoribbons in ethanol at a concentration of 20 g L{sup −1} at 25 °C. Single-handed helical 3-aminophenol-formaldehyde resin nanotubes with optical activity were prepared using the self-assembly of the low molecular weight gelators as templates. After carbonization, single-handed helical carbonaceous nanotubes were obtained and characterized using circular dichroism, wide-angle X-ray diffraction, field-emission scanning electron microscopy, transmission electron microscopy, and Raman spectroscopy. The results indicate that the walls of the nanotubes are amorphous carbon. Moreover, the left- and right-handed helical nanotubes exhibit opposite optical activity.
ISSN 00255408
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-08-15
Publisher Place United States
Journal Materials Research Bulletin
Volume Number 80


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