Dataset for Single-Entity Electrochemistry of N-Doped Graphene Oxide Nanostructures for Improved Kinetics of Vanadyl Oxidation

Abstract

The present dataset is composed of 7 different methods used for the measurements, characterizations, and analysis of our article: 1) Literature review: This dataset describes the literature review of vanadyl oxidation on graphene-based materials and the vanadyl/pervanadyl redox couples during the charge and discharge cycles in vanadium redox flow battery (VRFB). 2) X-ray photoelectron spectroscopy (XPS): This dataset describes the elemental composition and distributions of each component (C, O, and N) for high-resolution measurements and the survey of N-doped GO. The files are composed of two columns, corresponding to the Intensity (CPS) and Binding Energy (eV). This data can be analysed by CasaXPS software. 3) Raman: This dataset contains Raman figures and the Raman data composed of two columns, the Intensity (a.u) and the Raman shift (cm-1), used to evaluate the banding energies and the Id/Id ratio. This data can be analysed by CasaXPS and Origin software. 4) Atomic force microscopy (AFM): This dataset contains the AFM raw measured on ParkSystem AFM and can be analysed by Witec Project 5.1, used to evaluate the surface roughness and thickness. 5) Scanning Electron Microscopy analysis (SEM): This dataset is related to the SEM images measured on Zeiss Ultra FE using secondary electron and Lens detectors at acceleration voltage of 5 kV. The SEM data complemented the information about the structure of N-doped GO flakes. 6) Transmission electron microscopy (TEM): This dataset is containing TEM images measured on TEM 2100 HR, Jeol TEM (JEM 2100) and carried out at 200 kV with STEM and EFTEM resolutions of 1 nm. The TEM data complement the information about the morphology. 7) Electrochemistry: This dataset describes the response of N-doped GO flakes supported on carbon thin film substrate for the study of the kinetics of vanadyl (VO2+) oxidation affected by subdomains and heterogeneity. Two methods have been used for the understanding the effect of local active-sites and heterogeneity affecting the kinetics of VO2+ at N-doped GO flake, such as voltammetry in the bulk electrochemistry and nanoscale electrochemistry via SECCM. Each file has different columns identified as potential (V) and current (mA).