1：Experimental Design and Method Selection:

The study employed a facile hydrothermal approach for the synthesis of titania decorated RGO/CNT hybrid electrode material. The methodology included the preparation of graphene oxide by improved Hummer’s method, synthesis of pure TiO2 from Titanium tetraisopropoxide, and in situ synthesis of TiO2-based nanocomposites with different compositions of RGO, CNT, and SDBS surfactant.

2：Sample Selection and Data Sources:

Samples were prepared with varying compositions of RGO, CNT, and SDBS as documented in the paper. The electrochemical properties were measured using a conventional three-electrode system with 1M aqueous KCl as the electrolyte.

3：List of Experimental Equipment and Materials:

Equipment used included Fourier transform infrared spectroscopy (FT-IR) Perkin Elmer Spectrum RXI, Raman analysis Nanofinder 30, field emission scanning electron microscope (FESEM) Supra 55, and BET surface area measurement Quantachrome Nova Win. Materials included graphite powder, Titanium tetraisopropoxide, hydrofluoric acid, and sodium dodecyl benzene sulfonate (SDBS).

4：Experimental Procedures and Operational Workflow:

The synthesis involved hydrothermal processes at 190°C for 18 hours, followed by washing and treatment with NaOH to remove adsorbed fluoride ions. Electrochemical measurements were conducted using cyclic voltammetry (CV), galvanostatic charging-discharging (GCD), and electrochemical impedance spectroscopy (EIS).

5：Data Analysis Methods:

Specific capacitance was calculated from charge/discharge plots. Energy density and power density were calculated using standard formulas. The data analysis aimed to evaluate the electrochemical performance and stability of the nanocomposites.