In situ study of supercapacitors with reduced graphene oxide electrodes using neutron reflectivity.
Graphene-related materials are promising for applications in supercapacitors (SC), devices which store charge thanks to an electrical double layer formed on the surface of the electrodes. In situ and in operando studies of electrode materials inside of electrochemical devices are important for understanding of basic processes and ways to improve SC performance. However, in situ or in operando studies of supercapacitors were never tested using neutron scattering methods to the best of our knowledge. This project suggests to perform first in operando study of supercapacitor cell with reduced Graphene Oxide (rGO) electrodes using Neutron Reflectivity (NR) method. Quantitative estimation of electrolyte ions sorption using NR will be performed first in absence of potential difference, then under conditions of fully charged supercapacitor cell with opposite polarity of applied voltage and as a function of charge/discharge cycle number. We will be able to evaluate the change in composition of rGO electrode due to sorption of ions (positive or negative depending on applied potential). The charge density change due to formation of electrical double layer will then be evaluated.
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The recommended format for citing this dataset in a research publication is in the following format:
NORDENSTROM Andreas; BOULANGER Nicolas; IAKUNKOV Artem; TALYZIN ALEXANDR and Alexei Vorobiev. (2023). In situ study of supercapacitors with reduced graphene oxide electrodes using neutron reflectivity.. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.6-07-109
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