Preparation and catalytic behavior of reduced graphene oxide supported cobalt oxide hybrid nanocatalysts for CO oxidation
| Autor: | Zehua Chen, Bo Zhang, Lei Jia, Chen Xingying, Huoli Zhang, Jing Huang, Gao-jie Li, Jianliang Cao, Yan Wang |
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| Rok vydání: | 2018 |
| Předmět: |
inorganic chemicals
Materials science Oxide Nanoparticle 02 engineering and technology engineering.material 010402 general chemistry 01 natural sciences law.invention Catalysis chemistry.chemical_compound law Specific surface area Materials Chemistry Cobalt oxide Graphene Spinel Metals and Alloys 021001 nanoscience & nanotechnology Geotechnical Engineering and Engineering Geology Condensed Matter Physics Nanomaterial-based catalyst 0104 chemical sciences chemistry Chemical engineering engineering 0210 nano-technology |
| Zdroj: | Transactions of Nonferrous Metals Society of China. 28:2265-2273 |
| ISSN: | 1003-6326 |
| DOI: | 10.1016/s1003-6326(18)64871-x |
| Popis: | The reduced graphene oxide (rGO) supported cobalt oxide nanocatalysts were prepared by the conventional precipitation and 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 the rGO support and possess uniform particle size, and the as-prepared catalysts possess high specific surface area and narrow pore size distribution. The catalytic properties of the as-prepared rGO-Co3O4 catalysts for CO oxidation were evaluated through a continuous-flow fixed-bed microreactor-gas chromatograph system. The catalyst with 30% (mass fraction) reduced graphene oxide exhibits the highest activity for CO complete oxidation at 100 °C. |
| Databáze: | OpenAIRE |
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