Kim, Inho Seo, Kyeong Won Ahn, Byoung Sung Moon, Dong Ju Kim, Sang Woo 2024-01-20T02:00:45Z 2024-01-20T02:00:45Z 2021-09-01 2017-04 1533-4880 https://pubs.kist.re.kr/handle/201004/122910 Silicon carbide-alumina nanocomposite supports including a nanowire architecture for a high dispersion of cobalt nanocatalysts were fabricated using a modified sol-gel process and paste extrusion process to form cylindrical shape beads, followed by thermal treatment. Well-developed aluminosilicate nanowires were formed on a nanoporous support, which are grown from a catalytic metal seed at the nanowire growth tips during heat treatment at 1,100 degrees C for 1 h under nitrogen gas flow. Cobalt oxide precursors were highly dispersed on the nanowires grown on the surface of the nanoporous bodies through a supercritical carbon dioxide fluid-assisted wet-impregnation process. The highly-dispersed Co nanoparticles with size of less than 10 nm were finally obtained on the nanowires via phase transitions from Co3O4 to CoO and from CoO to Co during the thermal reduction. English AMER SCIENTIFIC PUBLISHERS THERMAL EVAPORATION CATALYST POWDERS Dispersion of Cobalt Nanoparticles on Nanowires Grown on Silicon Carbide-Alumina Nanocomposites Article 10.1166/jnn.2017.13346 1 JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.17, no.4, pp.2700 - 2702 JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 17 4 2700 2702 scie scopus 000397853900078 2-s2.0-85013809208 Chemistry, Multidisciplinary Nanoscience & Nanotechnology Materials Science, Multidisciplinary Physics, Applied Physics, Condensed Matter Chemistry Science & Technology - Other Topics Materials Science Physics Article THERMAL EVAPORATION CATALYST POWDERS Nanocomposites Nanowires Chemical Synthesis Solvothermal Ceramics Oxides