▎ 摘　　要

NOVELTY - Fexible electrode comprises a laminated carbon cloth and a three-dimensional graphene layer. USE - The flexible electrode is useful for preparing flexible sensor (claimed). ADVANTAGE - The flexible electrode has detection sensitivity of the ascorbic acid can reach to 1.805 mA/(mol/l), ensures that the biological small molecule has targeting detection ability; detect ascorbic acid, dopamine and uric acid three kinds of biological small molecule and distinguishing the concentration of the different biological small molecule, where the detection limit of uric acid can reach 5 mu M. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing flexible electrode comprising using chemical vapor deposition growing a three-dimensional graphene layer on the surface of the carbon cloth to obtain the flexible electrode, where the chemical vapor deposition time is 5-10 hours. DESCRIPTION OF DRAWING(S) - The drawing shows a flow chart for the preparation of flexible electrodes for preparing flexible sensor