• 专利标题:   Preparing tin oxide/reduced graphene oxide nano-composite material modified by palladium for hydrogen sensor, involves providing micron-sized oxidizing graphene, mixing tin source, micron-sized oxidizing graphene and palladium source, adding acid, and ultrasonically dispersing.
  • 专利号:   CN114348999-A
  • 发明人:   WANG Q, PENG Q, XIAO H, DUAN Q, JIN K, DUAN P, SUN J
  • 专利权人:   UNIV CHINA SCI TECHNOLOGY
  • 国际专利分类:   C01B032/194, C01B032/198, C01G019/02, G01N027/12
  • 专利详细信息:   CN114348999-A 15 Apr 2022 C01B-032/198 202262 Chinese
  • 申请详细信息:   CN114348999-A CN10074839 21 Jan 2022
  • 优先权号:   CN10074839

▎ 摘  要

NOVELTY - Preparing tin oxide/reduced graphene oxide nano-composite material modified by palladium involves providing micron-sized oxidizing graphene, mixing the tin source, micron-sized oxidizing graphene and palladium source, adding acid, ultrasonically dispersing to form uniform mixed solution, carrying out hydrothermal reaction for the uniform mixed solution, centrifuging and separating, taking lower layer precipitate dry, sintering the solid powder after drying to obtain product. USE - Method for preparing tin oxide/reduced graphene oxide nano-composite material modified by palladium used for hydrogen sensor and to chemical engineering, oil refining, aerospace and fuel cell. ADVANTAGE - The method enables to prepare tin oxide/reduced graphene oxide nano-composite material modified by palladium has controllable shape appearance, high sensitivity to the hydrogen response and low detection limit, and is prepared in simple manner. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing hydrogen sensor, involving: taking aluminum oxide as a plane substrate, forming a gold interdigital electrode on it, coating the nano-composite material on the gold interdigital electrode, and connecting two ends of the gold interdigital electrode with two pairs of platinum electrodes.