▎ 摘　　要

NOVELTY - A molybdenum disulfide/pyridinium-ILs/polypyrrole/graphene oxide (MoS2/pyridinium-ILs/PPy/GO) nanomaterial is prepared by in situ chemical polymerizing pyrrole on graphene oxide nanosheet under ultrasonic condition to obtain polypyrrole/graphene oxide nanosheet, adding in N,N-dimethylformamide, ultrasonically dispersing, adding 1,4-dibromobutane and potassium hydroxide, continuously ultrasonically dispersing, transferring to 60 degrees C oil bath, stirring and reacting for 24 hours, centrifuging, washing, adding solid substance with 2-amino-3-hydroxypyridine, stirring and reacting for 24 hours in 60 degrees C oil bath, centrifuging, washing, collecting solid, vacuum drying at 50 degrees C to obtain pyridinium-ILs/PPy/GO nanosheet, dispersing in water, orderly adding ammonium molybdate terahydrate and thioacetamide, uniformly stirring, transferring reaction system to reaction kettle for hydrothermal reaction, washing product by distilled water and ethanol, centrifuging, and vacuum drying. USE - The molybdenum disulfide/pyridinium-ILs/polypyrrole/graphene oxide nanomaterial is used in preparing nitrogen reduction reaction (NRR) electrocatalytic modified electrode in electrocatalytic ammonia nitrogen reduction (all claimed). ADVANTAGE - The molybdenum disulfide/pyridinium-3-hydroxyl pyridine ion/liquid/polypyrrole/graphene oxide nano-sheet has excellent stability and catalytic activity. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (1) a method for preparing nitrogen reduction reaction (NRR) electrocatalytic modified electrode based on MoS2/pyridinium-ILs/PPy/GO nanomaterial comprising ultrasonically dispersing MoS2/pyridinium-ILs/PPy/GO nanomaterial in mixed solution of absolute ethanol and Nafion (RTM: perfluoro-sulfonic acid polymer) to obtain uniformly dispersed composite modifier, coating on surface of clean carbon cloth and drying at room temperature; and (2) an application method comprising using NRR electrocatalytic modified electrode based on MoS2/pyridinium-ILs/PPy/GO nanomaterial as working electrode, mercuric oxide electrode as reference electrode and platinum electrode as auxiliary electrode three electrode system, and electrocatalyzing nitrogen in 1 M potassium hydroxide aqueous solution.