Funding: This research was partially funded by the EMPIR programme co-financed by the Participating States and from the European Union's Horizon 2020 research and innovation programme, grant number 18HLT01 METVES II and by the National Research, Development and Innovation Office, grant numbers K131657, PD121326 and PD124451.

Small-angle X-ray scattering curves of bimodal SiO2 nanoparticles and the required Python algorithms for model fitting. The results of the fits (size distribution curves, parameters etc.) are also included.

{"references": ["Al-Khafaji et. al. (2020), Particle Size Distribution of Bimodal Silica Nanoparticles: A Comparison of Different Measurement Techniques"]}