A facile and acid-free approach towards the preparation of sulphonated multi-walled carbon nanotubes as a strong protonic acid catalyst for biodiesel production

Siew Hoong ShuitEng Poh NgSoon Huat Tan2024-12-312024-12-312015-0710.1016/j.jtice.2015.02.018https://dspace-cris.utar.edu.my/handle/123456789/9265A facile and acid-free approach towards the preparation of sulphonated multi-walled carbon nanotubes as a strong protonic acid catalyst for biodiesel productionjournal-article