The reduced graphene oxide （rGO） supported cobalt oxide nanocatalysts were prepared by the conventional precipitationand hydrothermal method. The as-prepared rGO-Co3O4 was characterized by the XRD, Raman spectrum, S...The reduced graphene oxide （rGO） supported cobalt oxide nanocatalysts were prepared by the conventional precipitationand hydrothermal method. The as-prepared rGO-Co3O4 was characterized by the XRD, Raman spectrum, SEM, TEM, N2-sorption,UV-Vis, XPS and H2-TPR measurements. The results show that the spinel cobalt oxide nanoparticles are highly fragmented on therGO support and possess uniform particle size, and the as-prepared catalysts possess high specific surface area and narrow pore sizedistribution. The catalytic properties of the as-prepared rGO-Co3O4 catalysts for CO oxidation were evaluated through acontinuous-flow fixed-bed microreactor-gas chromatograph system. The catalyst with 30% （mass fraction） reduced graphene oxideexhibits the highest activity for CO complete oxidation at 100 ℃.展开更多
基金Projects(51404097,51504083,21404033)supported by the National Natural Science Foundation of ChinaProject(2016M592290)supported by China Postdoctoral Science Foundation+5 种基金Project(NSFRF1606)supported by the Fundamental Research Funds for the Universities of Henan Province,ChinaProjects(J2016-2,J2017-3)supported by Foundation for Distinguished Young Scientists of Henan Polytechnic University,ChinaProject(16A150009)supported by the Key Scientific Research Project for Higher Education of Henan Province,ChinaProject(166115)supported by the Postdoctoral Science Foundation of Henan Province,ChinaProject(17HASTIT029)supported by Program for Science&Technology Innovation Talents in Universities of Henan Province,ChinaProjects(162300410113,162300410119)supported by Natural Science Foundation of Henan Province of China
文摘The reduced graphene oxide （rGO） supported cobalt oxide nanocatalysts were prepared by the conventional precipitationand hydrothermal method. The as-prepared rGO-Co3O4 was characterized by the XRD, Raman spectrum, SEM, TEM, N2-sorption,UV-Vis, XPS and H2-TPR measurements. The results show that the spinel cobalt oxide nanoparticles are highly fragmented on therGO support and possess uniform particle size, and the as-prepared catalysts possess high specific surface area and narrow pore sizedistribution. The catalytic properties of the as-prepared rGO-Co3O4 catalysts for CO oxidation were evaluated through acontinuous-flow fixed-bed microreactor-gas chromatograph system. The catalyst with 30% （mass fraction） reduced graphene oxideexhibits the highest activity for CO complete oxidation at 100 ℃.
