Robust Bioinspired Graphene Film via pi-pi Cross-linking
File(s)
Accepted version
Author(s)
Type
Journal Article
Abstract
Graphene composite films inspired by nacre are the subject of ongoing research efforts to optimize their properties for applications in flexible energy devices. Noncovalent interactions do not cause interruption of the delocalized conjugated π-electron system, thus preserving graphene’s excellent properties. Herein, we synthesized a conjugated molecule with pyrene groups on both ends of a long linear chain (AP-DSS) from 1-aminopyrene (AP) and disuccinimidyl suberate (DSS). The AP-DSS molecules are used to cross-link adjacent graphene nanosheets via π–π interfacial interactions to improve properties of graphene films. The tensile strength and toughness of resultant graphene films were 4.1 and 6.4 times higher, respectively, than that of pure rGO film. More remarkably, the electrical conductivity showed a simultaneous improvement, which is rare to be achieved in other kinds of covalent or noncovalent functionalization. Such integration demonstrates the advantage of this work to previously reported noncovalent functionalization of graphene.
Date Issued
2017-07-06
Date Acceptance
2017-07-06
Citation
ACS APPLIED MATERIALS & INTERFACES, 2017, 9 (29), pp.24987-24992
ISSN
1944-8244
Publisher
American Chemical Society
Start Page
24987
End Page
24992
Journal / Book Title
ACS APPLIED MATERIALS & INTERFACES
Volume
9
Issue
29
Copyright Statement
© 2017 American Chemical Society. This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Materials and Interfaces, after peer review and technical editing by the publisher. To access the final edited and published work see https://dx.doi.org/10.1021/acsami.7b07748
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000406646300067&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Technology
Nanoscience & Nanotechnology
Materials Science, Multidisciplinary
Science & Technology - Other Topics
Materials Science
bioinspired
conductive
robust
pi-conjugated
graphene films
POLYMER NANOCOMPOSITES
MECHANICAL-PROPERTIES
CARBON NANOTUBE
OXIDE SHEETS
ULTRASTRONG
CONDUCTIVITY
COMPOSITES
NANOFILLER
STABILITY
MEMBRANES
π-conjugated
0904 Chemical Engineering
0303 Macromolecular And Materials Chemistry
0306 Physical Chemistry (Incl. Structural)
Publication Status
Published