@article{klem_nogueira_alves_2021,  title={Low-cost supercapacitor based on colloidal graphite},  volume={24},  ISSN={1516-1439},  url={https://doi.org/10.1590/1980-5373-MR-2021-0013},  DOI={10.1590/1980-5373-MR-2021-0013},  journal={Materials Research},  publisher={ABM, ABC, ABPol},  author={Klem, Maykel dos Santos and Nogueira, Gabriel Leonardo and Alves, Neri},  year={2021},  pages={e20210013} }