Single-handed helical carbonaceous nanotubes prepared using a pair of cationic low molecular weight gelators

Journal Article · Mon Aug 15 00:00:00 EDT 2016 · Materials Research Bulletin

DOI:https://doi.org/10.1016/J.MATERRESBULL.2016.04.010· OSTI ID:22581608

Sun, Huayan; Wang, Qing; Guo, Yongmin; Li, Baozong; Li, Yi; Yang, Yonggang

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.

• OSTI ID: 22581608
• Journal Information: Materials Research Bulletin, Vol. 80; Other Information: Copyright (c) 2016 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 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