▎ 摘　　要

NOVELTY - Metal oxide low-temperature hydrogen sensitive material comprises reduced graphene oxide and stannic oxide doped with molybdenum element, where the reduced graphene oxide coats the stannic oxide doped with molybdenum element. USE - The metal oxide low-temperature hydrogen sensitive material is useful in detection of hydrogen. ADVANTAGE - The hydrogen sensitive material: has porous spherical structure, and high porosity and specific surface area, which is favorable for surface gas adsorption and desorption; can detect hydrogen at low temperature, and ensures excellent selective detection of hydrogen; and has ultrafast response and recovery detection characteristics. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparation of the metal oxide low-temperature hydrogen sensitive material, comprising (1) dissolving glucose in deionized water, subjecting the obtained solution to hydrothermal reaction, then separating the product and washing, (2) dissolving the washed hydrothermal product, stannous chloride and urea in deionized water, adding ammonium molybdate tetrahydrate, stirring for 6-8 hours, separating, washing, and drying, (3) placing the step (2) product in heating device for heat treatment and recrystallization to obtain molybdenum-hollow stannic oxide porous spherical material, (4) dissolving the molybdenum-hollow stannic oxide porous spherical material in deionized water, mixing with graphene oxide aqueous solution, adding to container, and stirring, then separating the product, washing and drying, and (5) placing the step (4) product in tube furnace, and subjecting to high-temperature heat treatment in hydrogen-argon atmosphere for reduction to obtain final product.