General, Metal-free Synthesis of Carbon Nanofiber Assemblies from Plant Oils.

ABSTRACT: We designed a metal-free synthesis of carbon nanofiber based on ketene chemistry using phosphorus pentoxide (P₂ O₅ ) and vegetable oil. Based on the characterization of intermediates, P₂ O₅ -oil reaction yielded most possibly alkylketenes, which polymerized into poly(ketene) with abundant enol groups. The enol groups further reacted with P₂ O₅ , forcing the poly(ketene) to assemble into a nano-sized preassembly structure. Moderate heating transforms these structures into carbonaceaus nanofibers. This approach is applicable to other chemicals with similar structure to vegetable oil. The carbon nanofibers with P-O-C functionalization show relatively high graphitization degree and promising textural properties. The C-O-P enviro

SUBMITTER: Zhang L 

PROVIDER: S-EPMC8596426 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature