This carbon cloth, model wos1011-H from CeTech, is developed for applications requiring hydrophilic and conductive substrates. Based on the standard wos1011 carbon cloth, it undergoes strong acid, heat, or atmospheric plasma treatment to transform the originally hydrophobic surface into a highly hydrophilic one, eliminating the need for pre-use hydrophilic treatment. Key characteristics include ultra-high hydrophilicity with excellent stability, overcoming the poor durability of conventional hydrophilic treatments. Its electrical conductivity remains almost unaffected after processing, making it suitable for use in electrochemical devices, fuel cells, and battery research where consistent wettability and low electrical resistance are critical. Supplied in 110 cm × 10 cm sheets, this material offers reliable, ready-to-use performance for advanced energy and catalysis studies.