If you use this database, please cite this paper:
Shan Zhu, Jiajun Li, Liying Ma, Chunnian He, Enzuo Liu, Fang He, Chunsheng Shi, Naiqin Zhao, Artificial neural network enabled capacitance prediction for carbon-based supercapacitors, Materials Letters, Volume 233, 2018, Pages 294-297, DOI:10.1016/j.matlet.2018.09.028.