tud
eng
A two-dimensional conjugated polymer framework with fully sp2-bonded carbon skeleton
2016
urn:nbn:de:bsz:14-qucosa-224298
born digital
aut
Prof.
Xinliang
Feng
aut
Xiaodong
Zhuang
aut
Wuxue
Zhao
aut
Fan
Zhang
aut
Yu
Cao
aut
Feng
Liu
aut
Shuai
Bia
pbl
Royal Society of Chemistry
Royal Society of Chemistry, Cambridge
The synthesis of crystalline two-dimensional (2D) covalent organic frameworks (COFs) with fully unsaturated carbon–carbon backbones via a solution approach remains a great challenge. In this work, we report the first example of an olefin-linked 2D conjugated COF using a Knoevenagel polycondensation reaction of 1,4-phenylene diacetonitrile and three armed aromatic aldehyde. The resulting 2D poly(phenelyenevinylene) framework (2DPPV) possesses a sheet morphology, and a crystalline layered structure featuring a fully sp2-bonded carbon skeleton with pendant cyanide groups. Its unique alternating structure with a serrated configuration has been essentially evaluated using HR-TEM TEM analysis, nitrogen physisorption measurements, PXRD studies and theoretical simulations. Upon thermal and activation treatments, the as-prepared 2DPPV can be facilely converted into porous carbon nanosheets with large specific surface areas of up to 880 m2 g−1 which exhibit an excellent electrochemical performance as supercapacitor electrodes and electrocatalysts for the oxygen reduction reaction. This represents an economic non-template approach to 2D porous carbon materials for energy-related applications.
Kohlenstoff-Kohlenstoff-Backbones, Olefin-verknüpfte 2D konjugierte COF, Blatt-Morphologie, poröse Kohlenstoff-Nanoschichten
carbon–carbon backbones, olefin-linked 2D conjugated COF, sheet morphology, porous carbon nanosheets
540
VA 1120
2017-07-21
491438680
Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden
4519974-7
prv
Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, Dresden
10.1039/C6PY00561F
Link zum Artikel, der zuerst in der Zeitschrift 'Polymer Chemistry' erschienen ist.
http://dx.doi.org/10.1039/C6PY00561F
Polymer Chemistry (2016), 7(25). S. 4176-4181. ISSN: 1759-9962. DOI: 10.1039/C6PY00561F.
Krause
baerbel.krause@slub-dresden.de
RSC-Voucher 2016
article
TUD-20-1698