ijms-21-08585.pdf (3.11 MB)
Free-standing graphene oxide and carbon nanotube hybrid papers with enhanced electrical and mechanic performance and their synergy in polymer laminates
journal contribution
posted on 2023-06-09, 22:07 authored by Manoj TripathiManoj Tripathi, Luca Valentini, Yuanyang Rong, Silvia Bittolo Bon, Maria F Pantano, Giorgio Speranza, Roberto Guarino, David Novel, Erica Iacob, Wei Liu, Victor Micheli, Alan DaltonAlan Dalton, Nicola M PugnoHybrid nanomaterials fabricated by the heterogeneous integration of 1D (carbon nanotubes) and 2D (graphene oxide) nanomaterials showed synergy in electrical and mechanical properties. Here, we reported the infiltration of carboxylic functionalized single-walled carbon nanotubes (C-SWNT) into free-standing graphene oxide (GO) paper for better electrical and mechanical properties than native GO. The stacking arrangement of GO sheets and its alteration in the presence of C-SWNT were comprehensively explored through scanning electron microscopy, X-ray photoelectron spectroscopy (XPS) and X-ray diffraction. The C-SWNTs bridges between different GO sheets produce a pathway for the flow of electrical charges and provide a tougher hybrid system. The nanoscopic surface potential map reveals a higher work function of the individual functionalised SWNTs than surrounded GO sheets showing efficient charge exchange. We observed the enhanced conductivity up to 50 times and capacitance up to 3.5 times of the hybrid structure than the GO-paper. The laminate of polystyrene composites provided higher elastic modulus and mechanical strength when hybrid paper is used, thus paving the way for the exploitation of hybrid filler formulation in designing polymer composites.
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Publication status
- Published
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- Published version
Journal
International Journal of Molecular SciencesISSN
1661-6596Publisher
MDPIExternal DOI
Issue
22Volume
21Page range
1-18Article number
a8585Department affiliated with
- Physics and Astronomy Publications
Full text available
- Yes
Peer reviewed?
- Yes
Legacy Posted Date
2020-11-10First Open Access (FOA) Date
2020-11-18First Compliant Deposit (FCD) Date
2020-11-09Usage metrics
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