Tailoring structural and electrochemical properties of vertical aligned carbon nanotubes on metal foil using scalable wet-chemical catalyst deposition

► Homogenous CNT films were synthesized by wet-chemically applied catalyst coatings. ► Fe:Mo (47:3) and Fe:Co (2:3) catalyst alloys show different particle ripening behavior. ► CNT diameter can be controlled by the Fe:Mo (47:3) catalyst concentration. ► Resulting CNT films were investigated electrochemically as supercap cell. ► Specific capacitance can be indirectly controlled by the catalyst concentration.