A Comprehensive Study on Hydroxyl Multiwalled Carbon Nanotubes Used as Catalysts for VO₂⁺/VO²⁺ Reaction in Vanadium Redox Flow Battery

Table 2

Content of C, O, and N elements in hydroxyl MWCNTs/GF, MWCNTs/GF, and pristine GF.

Tested samples		Carbon content (%)	Oxygen content (%)	Nitrogen content (%)
Pristine GF		97.31	2.17	0.52
MWCNTs/GF		95.83	3.56	0.61
Hydroxyl MWCNTs/GF		86.25	13.02	0.74