Dataset supporting the article: Thermal carbonization of woody biomass under inert atmosphere with temperature-dependent switching of catalytic effects of Cu and Ti

This dataset supports the article:“Thermal carbonization of woody biomass under inert atmosphere with temperature-dependent switching of catalytic effects of Cu and Ti”.The dataset includes:Tables 1–4 containing weight loss and elemental composition data of fir-derived carbonized samples prepared at 500 °C and 800 °C. The tables are provided in both XLSX and UTF-8 encoded CSV formats.Line profile data extracted from representative TEM images corresponding to Fig. 2 and Fig. 4 of the manuscript:T500_r20, T500_Cu_r20, T500_Ti_r20, T800_r20, T800_Cu_r20, and T800_Ti_r20.Each line profile dataset contains two columns:Column 1: Interlayer spacing calculated from the TEM scale bar (nm).Column 2: Raw grayscale intensity extracted from the TEM image (arbitrary units).All figures were generated directly from these two columns unless otherwise specified.FFT analysis was performed using a custom script provided by Prof. Kyoichi Oshida. While the script itself is not publicly available, the extracted radial profile data used to generate the figures are fully shared in this dataset.Supplementary Figures 1 and 2 present processed TG–DTA curves. The underlying raw numerical TG–DTA data are currently unavailable in digital format.