Supplementary Data for Charcoal to Graphene: A Sustainable Route via Electrochemical Exfoliation

Supplementary Data for Charcoal to Graphene: A Sustainable Route via Electrochemical Exfoliation This dataset contains the supplementary experimental data supporting the manuscript on Charcoal to Graphene: A Sustainable Route via Electrochemical Exfoliation. The files include raw and processed data obtained from electrochemical and spectroscopic characterization, as well as image analysis of graphene morphology. Contents: Cyclic Voltammetry (CV) Summary: Processed plots and extracted parameters, summarizing the electrochemical activity of coal-derived graphene. Electrochemical Impedance Spectroscopy (EIS) Summary: Raw data of EIS. Summarized values of charge transfer resistance and double-layer capacitance. Raman Spectroscopy Data: Raw Raman spectral files with D, G, and 2D band information. Graphene Flake Size Analysis: ImageJ-based measurements of graphene flake dimensions. X-ray Photoelectron Spectroscopy (XPS) Analysis: High-resolution C 1s spectra of graphene films deposited on SPCE, with deconvolution data for sp² C=C, sp³ C–C, C–O, C=O, and O–C=O components. X-ray Diffraction (XRD) Patterns: XRD profiles of graphene samples derived from acid- and salt-pretreated charcoals. Confocal Microscopy Thickness Measurements: Three-dimensional surface scans and height profiles of deposited graphene films on SPCE. Format: Excel (.xlsx), and Plots (.png, and .jpg) Purpose: To provide transparent, reproducible, and reusable data supporting the conclusions of the study.