Journal
JOURNAL OF MOLECULAR STRUCTURE
Volume 1221, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.molstruc.2020.128835
Keywords
Polyaniline; p-Phenylenediamine; Graphene oxide; Characterization; Supercapacitor
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Funding
- Sichuan's Training Program of Innovation and Entrepreneurship for Undergraduates [201810619084]
- National Natural Science Foundation of China [41772036, U1630132]
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In order to reduce the agglomeration of graphene and improve its supercapacitor performance, graphene oxide was functionalized with p-phenylenediamine, and PANI/PPD-RGO nanocomposites were prepared with aniline monomer by in-situ polymerization. The morphology, structure and supercapacitor performance of the composite were characterized by SEM, XRD, FTIR, XPS, Raman and electrochemical measurements. Results showed that after functionalization and in-situ polymerization, the layer spacing of PANI/PPD-RGO increased, and PANI was more evenly dispersed in the structure of the composites. PANI/PPD-RGO exhibited superior supercapacitor performance, benefiting from its unique chemical structures, intrinsic electrochemical properties and the synergistic effect of PPD-RGO and PANI. The specific capacitance of PANI/PPD-RGO composite was 635.2 F g(-1) at a current density of 1 A g(-1). (C) 2020 Elsevier B.V. All rights reserved.
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