▎ 摘　　要

NOVELTY - Electrode comprises a base electrode and a coating at least partially attached to the surface of the base electrode. The coating is molybdenum sulfide/graphene/nanocellulose composite. The base electrode is a glassy carbon electrode. USE - The electrode is useful for detecting hydrogen peroxide. ADVANTAGE - The electrode can effectively improve hydrogen peroxide adsorption, reaction intermediate product and electronic transmission, and improve the detection efficiency of the peroxide. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: (1) an electrochemical sensor; and (2) detection method of hydrogen peroxide.