▎ 摘　　要

NOVELTY - Fuel cell electrode comprises nickel-iron-lactate dehydrogenase (LDH) nanometre sheet array, which is formed by stacking nickel-iron-lactate dehydrogenase nanometre sheet and forming gap between nickel-iron-lactate dehydrogenase nanometre sheet, palladium nano particles, which are attached to the nickel-iron-lactate dehydrogenase acid nanometre sheet. The palladium nanoparticles cluster are embedded in the gap between the nickel-iron-lactate dehydrogenase nanometre sheets, and the palladium nanoparticles are formed by cluster formation of the palladium nanometre nanoparticles. USE - The fuel cell electrode is useful in anode electrode for methanol fuel cell (claimed), light vehicle and portable device. ADVANTAGE - The fuel cell electrode has stable three-dimensional space structure and rich gap structure, and has excellent methanol oxidation stability and methanol oxidation efficiency in the methanol oxidation reaction process. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the fuel cell electrode, comprising (1) placing the pretreated substrate in precursor solution and subjecting to hydrothermal reaction, and obtaining the precursor after cleaning and drying in sequence after the reaction is completed, where the precursor liquid comprises nickel nitrate, ferric nitrate and urea, and (2) placing the precursor obtained in the step (1) in palladium (II) chloride precursor solution and subjecting to hydrothermal reaction, obtaining the fuel cell electrode by cleaning and drying in sequence after the reaction is completed, where the palladium (II) chloride precursor solution includes palladium chloride and precipitant.