Ternary hybrid materials of Graphenes, polyaniline and Hexaniobates: new materials for supercapacitor electrodes

• Grant number: 14/05048-4
• Support type: Scholarships abroad - Research Internship - Post-doctor
• Effective date (Start): September 01, 2014
• Effective date (End): August 31, 2015
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Physical-Chemistry
• Principal researcher: Marcia Laudelina Arruda Temperini
• Grantee: Claudio Hanashiro Barbosa Silva
• Supervisor abroad: Aravind Vijayaraghavan
• Home Institution: Instituto de Química (IQ). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Research place: University of Manchester, England
• Associated to the scholarship: 13/03013-6 - Ternary Hybrid Materials of Graphenes, Polyaniline and Hexaniobates for Supercapacitor Electrodes: Spectroscopic, Morphological, Electrochemical and Thermal Characterizations, BP.PD

Abstract

The recent scientific effort on the development of electrochemical capacitors (also known as supercapacitors) relies on the improvement of their energy densities. Ternary hybrid materials composed by carbon based-materials, conducting polymers and metal oxides have shown high performances as supercapacitors due to the complementary properties of their components. The main objective of this project is the study of ternary hybrid materials of graphene, polyaniline and hexaniobate as supercapacitor electrodes. The research headed by Dr. Vijayaraghavan at the University of Manchester is focused on the production, characterization and application of graphene and other 2-dimensional materials. The internship of the candidate at a group of such expertise would be very promising for the project since the preparation of the graphene materials is a key step for the development of supercapacitor electrodes and due to excellent infrastructure of the University of Manchester for the characterization of the hybrid materials. The graphene precursor materials will be prepared by different routes developed by Dr. Vijayaraghavan's group, such as improved methods for graphite oxidation and direct exfoliation of graphite. The hybrid materials will be prepared by using the different graphene materials and characterized mainly by Raman spectroscopy, scanning and transmission electron microscopy, cyclic voltammetry and galvanostatic charge/discharge cycles. The synthetic, structural and morphological aspects of the hybrid materials will be correlated to their electrochemical performances. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

SILVA, CLAUDIO H. B.; ILIUT, MARIA; MURYN, CHRISTOPHER; BERGER, CHRISTIAN; COLDRICK, ZACHARY; CONSTANTINO, VERA R. L.; TEMPERINI, MARCIA L. A.; VIJAYARAGHAVAN, ARAVIND. Ternary nanocomposites of reduced graphene oxide, polyaniline and hexaniobate: hierarchical architecture and high polaron formation. BEILSTEIN JOURNAL OF NANOTECHNOLOGY, v. 9, p. 2936-2945, NOV 26 2018. Web of Science Citations: 3.

VERRE, ANDREA FRANCESCO; FARONI, ALESSANDRO; ILIUT, MARIA; SILVA, CLAUDIO; MURYN, CRISTOPHER; REID, ADAM J.; VIJAYARAGHAVAN, ARAVIND. Improving the glial differentiation of human Schwann-like adipose-derived stem cells with graphene oxide substrates. INTERFACE FOCUS, v. 8, n. 3 JUN 6 2018. Web of Science Citations: 3.

ILIUT, MARIA; SILVA, CLAUDIO; HERRICK, SCOTT; MCGLOTHLIN, MARK; VIJAYARAGHAVAN, ARAVIND. Graphene and water-based elastomers thin-film composites by dip-moulding. Carbon, v. 106, p. 228-232, SEP 2016. Web of Science Citations: 9.