Study and characterization of thermally and hydrothermally reduced graphene oxide for enhanced supercapacitors application

• Grant number: 19/15604-5
• Support Opportunities: Scholarships abroad - Research Internship - Scientific Initiation
• Start date: October 01, 2019
• End date: January 31, 2020
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Physical-Chemistry
• Principal Investigator: Roberto Manuel Torresi
• Grantee: Marcelo Amaro de Andrade
• Supervisor: Vincent Vivier
• Host Institution: Instituto de Química (IQ). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Institution abroad: Université Paris-Sorbonne (Paris 4), France
• Associated to the scholarship: 18/04111-5 - Study and characterization of graphene electrodes in ionic liquids, BP.IC

Abstract

The improvement of energy storage devices is always in development, together with the use of electrochemical capacitors. It is important to obtain materials which present high surface area to increase the electrode capacitance and in consequence, the energy of the device. Thus, the use of thermally reduced and hydrothermally reduced graphene oxide ensures this requirement. Using Ionic Liquids as electrolytes to obtain a great electrochemical stability window, it is important to determine how the surface and interface of these materials works to electrochemically improve the capacitance of supercapacitors in comparison with standard materials and different synthesis routes. (AU)