"Preliminary Study on Coal-Derived Substitute Carbon Black as a Rubber Filler: Associated Research Data"

The specific surface area and pore volume were calculated using the BET and DFT methods.XRD: The crystal structure of the samples was investigated using a MiniFlex 600 X-ray diffractometer manufactured by Rigaku Corporation, Japan. The measurement conditions were: Cu Kα radiation (λ = 0.15406 nm), tube voltage 40 kV, tube current 15 mA, scanning range 10°–80°, and scanning speed 10°/min.Raman: The degree of graphitization of the samples was tested using a Horiba laser Raman spectrometer (Japan) with a laser wavelength of λ = 532 nm.

The test results showed two characteristic peaks: the D peak and the G peak.FTIR: The surface functional groups of the samples were analyzed using a Nicolet iS50 Fourier transform infrared spectrometer manufactured by Nicolet (USA). The samples were prepared as KBr pellets with a sample-to-KBr mass ratio of 1:200. The measurement conditions were: 32 scans, resolution 4 cm⁻¹, and scanning range 400–4000 cm⁻¹.