▎ 摘　　要

NOVELTY - Preparation of nitrogen-phosphorus-doped graphene perovskite lanthanum nickel oxide catalytic hydrogen production catalyst involves ultrasonically-dispersing graphene oxide (GO) in water, adding ammonium dihydrogen phosphate and lanthanum nickelate, stirring, hydrothermally reacting in hydrothermal kettle, cooling, filtering, and washing until neutral. The ammonium dihydrogen phosphate acts on graphene oxide as nitrogen and phosphorus heteroatom dopant under action of ultrasonic, the perovskite lanthanum nickel oxide is etched, the perovskite is anchored on the nitrogen-phosphorus-doped graphene by hydrothermal treatment. USE - Preparation of nitrogen-phosphorus-doped graphene perovskite lanthanum nickel oxide catalyst used for preparing hydrogen by photocatalysis of aqueous solution of methanol or sodium formate (all claimed). ADVANTAGE - The strong interaction is generated between ammonium dihydrogen phosphate and graphene oxide layer group, so that perovskite lanthanum nickel oxide is etched and anchoring perovskite on the nitrogen-phosphorus doped graphene by hydrothermal treatment to obtain hydrogen production catalyst. The catalyst has excellent carrier separation ability, and exhibits high hydrogen production activity of photo-catalytic formic acid. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for application of nitrogen-phosphorus-doped graphene perovskite lanthanum nickel oxide catalyst in preparation of hydrogen by photocatalysis of aqueous solution of methanol or sodium formate.