▎ 摘　　要

NOVELTY - In-situ electrocatalytic electrode comprises a carrier (3) with a pore structure. At least one side surface of the carrier is provided with a porous hydrophobic film (2), a conductive layer (5) and a catalyst layer (6) in sequence. The raw material enters into the carrier and diffuses from the pores to the porous hydrophobic film, the conductive layer and the catalyst layer. The electrode further comprises an air inlet channel. USE - The electrode is useful in catalytic reaction device for catalytic reaction (all claimed) in modern chemical industry, petroleum processing industry, energy and environment protection field. ADVANTAGE - The electrode: has simple structure and strong adaptability; generates active reactants in situ on the surface of the catalyst layer; optimizes the steps of adsorbing reactants on the catalyst surface and converting them into active reactants during the catalytic reaction; efficiently improves the catalytic reaction efficiency; and can be used for multiple catalytic reactions. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for: a catalytic reaction device; and a catalytic method. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the in-situ electrocatalytic electrode. 1Air inlet passage 2Porous hydrophobic film 3Carrier 4Application example 5Conductive layer 6Catalyst layer