期刊
NANO-MICRO LETTERS
卷 3, 期 4, 页码 215-222出版社
SHANGHAI JIAO TONG UNIV PRESS
DOI: 10.1007/BF03353675
关键词
Graphene oxide paper; Glutaraldehyde; Cross-linking; Mechanical enhancement
资金
- National Natural Science Foundation of China [51102164, 50902092]
- Science and Technology Commission of Shanghai Municipality [1052nm06800, 1052nm02000]
- Shanghai Pujiang Program [11PJD011]
- Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning
A facile route for the large scale production of graphene oxide (GO) papers and their mechanical enhancement has been presented in this work. The novel paper-like GO made from individual GO sheets in aqueous suspension can be achieved in large scale by a simple drop casting method on hydrophobic substrates. Significant enhancement in mechanical stiffness (341%) and fracture strength (234%) of GO paper have been achieved upon modification with a small amount (less than 10 wt%) of glutaraldehyde (GA). The cross-linking reaction takes place between hydroxyl groups on the surface of GO and aldehyde groups of GA, through forming hemiacetal structure, which can result in distinct mechanical enhancement of the GO papers.
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