Carbon nanotubes from short hydrocarbon templates. Energy analysis of the Diels–Alder cycloaddition/rearomatization growth strategy
Eric H. Fort and Lawrence T. Scott
J. Mater. Chem., 2011, Advance Article
DOI: 10.1039/C0JM02517H, Paper
In this paper by Eric Fort and Lawrence Scott, aromatic hydrocarbon belts and hemispherical end-caps of varying length and diameter are evaluated computationally as possible templates from which carbon nanotubes might be grown by the Diels-Alder cycloaddition/rearomatization strategy. The team from Boston College in the USA found that the Diels–Alder reactivity of nanotube template rims was relatively unaffected by the presence or absence of a cap on the other end.
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Ultra-narrow WS2 nanoribbons encapsulated in carbon nanotubes
Zhiyong Wang, Keke Zhao, Hong Li, Zheng Liu, Zujin Shi, Jing Lu, Kazu Suenaga, Soon-Kil Joung, Toshiya Okazaki, Zhaoxia Jin, Zhennan Gu, Zhengxiang Gao and Sumio Iijima
J. Mater. Chem., 2011, Advance Article
DOI: 10.1039/C0JM02821E, Paper
A team from China and Japan report the synthesis via chemical reaction in the interior space of carbon nanotubes of zigzag-edged WS2 nanoribbons with widths down to 1–3 nm and layer numbers of one to three. Layered WS2 nanostructures are of both fundamental and technological interest. The widths of currently synthesized WS2 ribbons are in the microscale but by using single-walled carbon nanotubes and double-walled carbon nanotubes as templates this team demonstrate that ribbons in the nanoscale are possible.
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Fabrication of covalently crosslinked and amine-reactive microcapsules by reactive layer-by-layer assembly of azlactone-containing polymer multilayers on sacrificial microparticle templates
Eric M. Saurer, Ryan M. Flessner, Maren E. Buck and David M. Lynn
J. Mater. Chem., 2010, Advance Article
DOI: 10.1039/C0JM02633F, Paper
David Lynn and colleagues from the University of Wisconsin demonstrate an approach to the fabrication of covalently crosslinked and amine-reactive microcapsules by the ‘reactive’ layer-by-layer fabrication of azlactone-functionalized polymer multilayers on the surfaces of sacrificial microparticle templates. These microcapsules have potential use in a wide range of fields, including catalysis, drug and gene delivery, imaging, and biomedical research.
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