• 专利标题:   Preparing graphene loaded cobaltous oxide catalyst for catalyzing carbon monoxide low-temperature oxidation, involves preparing cobalt acetate aqueous solution and graphene oxide aqueous solution.
  • 专利号:   CN105268440-A
  • 发明人:   CAO J, CHEN Z, LIU B, LI G, MA M, SUN J, WANG Y, SUN G, ZHANG C, ZHANG Z, SHI J
  • 专利权人:   UNIV HENAN POLYTECHNIC
  • 国际专利分类:   B01J023/75, B01J035/10
  • 专利详细信息:   CN105268440-A 27 Jan 2016 B01J-023/75 201640 Pages: 12 English
  • 申请详细信息:   CN105268440-A CN10749247 06 Nov 2015
  • 优先权号:   CN10749247

▎ 摘  要

NOVELTY - Graphene loaded cobaltous oxide catalyst preparation involves preparing cobalt (II) acetate aqueous solution and a graphene oxide aqueous solution, and then mixing the prepared aqueous solutions under magnetic stirring to obtain mixed solution A. Ammonia water is dropwise added into the mixed solution A under magnetic stirring to obtain mixed solution B. The mixed solution B is filled into a high-pressure reaction kettle with a polytetrafluoroethylene lining for conducting hydrothermal reaction for 10-14 hours at 160-190 degrees C to obtain a mixture. USE - Method for preparing graphene loaded cobaltous oxide catalyst for catalyzing carbon monoxide low-temperature oxidation (all claimed). ADVANTAGE - The graphene loaded cobaltous oxide catalyst completely oxidizes carbon monoxide into carbon dioxide at 100 degrees C and thus the carbon monoxide can be completely converted into the carbon dioxide for 3000 minutes at 100 degrees C. DETAILED DESCRIPTION - Graphene loaded cobaltous oxide catalyst preparation involves preparing cobalt (II) acetate aqueous solution and a graphene oxide aqueous solution, and then mixing the prepared aqueous solutions under magnetic stirring to obtain mixed solution A. Ammonia water is dropwise added into the mixed solution A under magnetic stirring to obtain mixed solution B. The mixed solution B is filled into a high-pressure reaction kettle with a polytetrafluoroethylene lining for conducting hydrothermal reaction for 10-14 hours at 160-190 degrees C to obtain a mixture. The obtained mixture is treated through speed centrifugal separation to remove supernatant liquor, where the residual solid matter is transferred to a drying oven after washing. The washed residual solid matter is dried for 8 hours at 60 degrees C to prepare graphene loaded cobaltous oxide catalyst. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic transmission electron microscopic photograph of the graphene loaded cobaltous oxide catalyst.