Multi-walled carbon nanotubes (MWCNTs) have attracted much attention from researchers since their discovery due to their excellent mechanical properties, electrical properties, good thermal properties, and excellent hydrogen storage properties.
The hydroxylated functionalized multi-walled carbon tube improves the dispersion of the multi-walled carbon tube and improves the application effect of the multi-walled carbon tube.

For composite materials:
Carbon nanotubes are considered as an ideal additive phase material for the preparation of composite materials, and have huge application potential in the field of nanocomposites.
The composite materials containing hydroxylated carbon tubes have increased elongation at break compared to pure polystyrene. The addition of functionalized carbon nanotubes facilitates the formation of a hydrophilic surface, which lays the foundation for the preparation of porous composite materials for filtration.

For battery:
Studies have shown that the positive electrode sheet doped with hydroxylated multi-walled carbon nanotubes (MWCNTs-OH) uses hydrophilic hydroxyl functional groups to adsorb polysulfides to prevent the diffusion of polysulfides, increase the utilization of effective substances, and suppress The generation of shuttle effect improves the capacity and cycle performance of lithium-sulfur batteries