Lee, IJ Lee, CH Lee, SD Suh, DJ 2024-01-21T04:08:47Z 2024-01-21T04:08:47Z 2021-09-02 2005-11 1226-086X https://pubs.kist.re.kr/handle/201004/136027 Vanadia/titania composite xerogel catalysts prepared by the alkoxide and non-alkoxide sot-gel process were evaluated as catalysts in a fixed-bed reactor for the gas phase ammoxidation of m-xylene in a temperature range from 573 to 698 K. The effects that the reaction temperature and the vanadia loadings had on had the reaction characteristics were investigated. A maximum yield of 72 % of isophthalonitrile (IPN) was obtained using a vanadia loading of 3 wt% at 648 K with a contact time of 0.5 s. The vanadia/titania xerogel catalysts were characterized through nitrogen adsorption-desorption, temperature-programmed reduction (TPR), X-ray diffraction (XRD), and scanning electronic microscopy (SEM) analyses to explain their excellent catalytic performance in comparison with those of conventionally impregnated catalysts. English KOREAN SOC INDUSTRIAL ENGINEERING CHEMISTRY VANADIUM-OXIDE CATALYSTS MONOLAYER CATALYSTS NITRIC-OXIDE OXIDATION REACTIVITY REDUCTION TITANIA SYSTEM SUPPORTS AEROGELS Characterization and catalytic properties of vanadia/titania xerogel catalysts for ammoxidation of m-xylene Article 1 JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, v.11, no.6, pp.918 - 925 JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY 11 6 918 925 scie scopus kci ART001190863 000233577300018 2-s2.0-28744455135 Chemistry, Multidisciplinary Engineering, Chemical Chemistry Engineering Article VANADIUM-OXIDE CATALYSTS MONOLAYER CATALYSTS NITRIC-OXIDE OXIDATION REACTIVITY REDUCTION TITANIA SYSTEM SUPPORTS AEROGELS ammoxidation m-xylene catalyst xerogel sol-gel vanadia titania