▎ 摘　　要

NOVELTY - Graphene oxide-based rare earth compound catalytic material comprises 0.47-1.48 wt.% graphene oxide, 11.71-28.25 wt.% perovskite-type rare earth oxide and 70.62-87.82 wt.% ethylenediamine, hydrazine hydrate or urea as additive. USE - Graphene oxide-based rare earth compound catalyst used for methane combustion (claimed). ADVANTAGE - The catalyst has ignition temperature at 300 degrees C, complete conversion temperature at 405 degrees C, and has better catalytic activity. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the preparation of graphene oxide-based rare earth compound catalytic material comprising taking 80-120 mg/mL graphene suspension, perovskite-type rare earth oxide and additive, adding 1-8 mL deionized water per 1 g perovskite-type rare earth oxide, ultrasonically dispersing for 1-3 hours, performing hydrothermal reaction at 120-140 degrees C for 4-48 hours, cooling, filtering, washing with deionized water until pH is 6-7 and oven drying at 60-90 degrees C.