Short hydroxy purified multi-walled carbon nanotubes are widely used in various advanced applications due to their unique properties. In the field of electronics, they are incorporated into conductive films, sensors, and transistors to enhance electrical conductivity and performance. Their high surface area and mechanical strength make them ideal for use in energy storage devices, such as supercapacitors and lithium-ion batteries, where they improve charge storage and cycling stability. In composite materials, they are added to polymers, metals, or ceramics to enhance tensile strength, thermal conductivity, and durability, making them suitable for aerospace, automotive, and construction industries. Additionally, they are utilized in biomedical applications, including drug delivery systems and biosensors, due to their biocompatibility and ability to functionalize with various molecules. Their adsorption properties also make them effective in environmental applications, such as water purification and air filtration, for removing contaminants and pollutants.