Effect of Reaction Media on Hydrogen Sorption Properties of Mg-Decorated MWCNTs

Abstract

Synthesis of Mg-decorated multiwalled carbon nanotubes (Mg-MWCNTs) from carboxylate-functionalized multiwalled carbon nanotubes (COOH-MWCNTs) and its hydrogen sorption have been investigated. Mg-MWCNTs have been prepared in different reaction media, i.e., water, amine (Triethyl amine), and DMF. Morphology, functionalization, surface area, and hydrogen adsorption have been examined through SEM with EDAX, TEM, BET analysis, FT-IR, and adsorption isotherms. An increase in hydrogen sorption was observed from 0.3 to 0.67 wt% and 0.1 to 0.45 wt% at 253 K and 298 K, respectively, for Pristine MWCNTs to Mg-MWCNTs