Cha, Woojoon Chin, Sungrnin Park, Eunseuk Yun, Seong-Taek Jurng, Jongsoo 2024-01-20T12:00:52Z 2024-01-20T12:00:52Z 2021-09-05 2013-08 0926-3373 https://pubs.kist.re.kr/handle/201004/127817 In this study, V2O5/CVC-TiO2 materials with different concentrations of V2O5 were prepared via chemical vapor condensation (CVC) and impregnation. The catalytic activities of these materials were tested and the physicochemical characteristics were analyzed using XRD, BET, FT-IR spectroscopy, XPS, HR-TEM, EDX mapping, H-2-TPR, and NH3-TPD. The NOx removal efficiency of the V2O5/CVC-TiO2 catalysts was higher than that of the V2O5/P25-TiO2 catalysts and increased with increasing V2O5 concentration. At 200 degrees C, the highest NO conversion was observed using 7 and 10 wt.% V2O5/CVC-TiO2 catalysts. The NO conversion curve reached a plateau corresponding to the maximum conversion when the V2O5 content was greater than 7 wa. The V2O5/CVC-TiO2 catalyst comprised mainly anatase-phase TiO2 and well-dispersed V2O5. A greater concentration of V (well-balanced V4+/V5+) species existed on the V2O5/CVC-TiO2 catalyst surface. H-2-TPR and NH3-TPD testing confirmed that the V2O5/CVC-TiO2 catalyst is highly reducible and has many acidic sites. (C) 2013 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE BV CHEMICAL-VAPOR CONDENSATION PHOTOCATALYTIC ACTIVITY TIO2 NANOPARTICLES REDUCTION NH3 OXIDATION OXIDES SCR DEGRADATION REACTIVITY Effect of V2O5 loading of V2O5/TiO2 catalysts prepared via CVC and impregnation methods on NOx removal Article 10.1016/j.apcatb.2013.05.002 1 APPLIED CATALYSIS B-ENVIRONMENTAL, v.140, pp.708 - 715 APPLIED CATALYSIS B-ENVIRONMENTAL 140 708 715 scie scopus 000321991300077 2-s2.0-84879107491 Chemistry, Physical Engineering, Environmental Engineering, Chemical Chemistry Engineering Article CHEMICAL-VAPOR CONDENSATION PHOTOCATALYTIC ACTIVITY TIO2 NANOPARTICLES REDUCTION NH3 OXIDATION OXIDES SCR DEGRADATION REACTIVITY V2O5/TiO2 Chemical vapor condensation (CVC) SCR NOx