M. M. Amaral, A. C. Peterlevitz, C. A. R. Júnior, L. M. Da Silva and H. Zanin. Robust, freestanding, and bendable multi-walled carbon nanotube buckypapers as electrode materials for quasi-solid-state potassium-ion supercapacitors, Diamond and Related Materials 115, 108354 (2021).