Cha, Woojoon Yun, Seong-Taek Jurng, Jongsoo 2024-01-20T09:01:29Z 2024-01-20T09:01:29Z 2021-09-02 2014-09-07 1463-9076 https://pubs.kist.re.kr/handle/201004/126361 In this article, we describe the investigation and surface characterization of a chemical vapor condensation (CVC)-TiO2 support material used in a V2O5/TiO2 catalyst for enhanced selective catalytic reduction (SCR) activity and confirm the mechanism of surface reactions. On the basis of previous studies and comparison with a commercial TiO2 catalyst, we examine four fundamental questions: first, the reason for increased surface V4+ ion concentrations; second, the origin of the increase in surface acid sites; third, a basis for synergistic influences on improvements in SCR activity; and fourth, a reason for improved catalytic activity at Low reaction temperatures. In this study, we have cited the result of SCR with NH3 activity for removing NOx and analyzed data using the reported result and data from previous studies on V2O5/CVC-TiO2 for the SCR catalyst. In order to determine the properties of suitable CVC-TiO2 surfaces for efficient SCR catalysis at low temperatures, CVC-TiO2 specimens were prepared and characterized using techniques such as XRD, BET, HR-TEM, XPS, FT-IR, NH3-TPD, photoluminescence (PL) spectroscopy, H-2-TPR, and cyclic voltammetry. The results obtained for the CVC-TiO2 materials were also compared with those of commercial TiO2. English ROYAL SOC CHEMISTRY VISIBLE-LIGHT PHOTOCATALYTIC ACTIVITY IMPREGNATION METHOD V2O5/TIO2 NO CVC NANOPARTICLES PERFORMANCE NH3 PARTICLES Examination of surface phenomena of V2O5 Loaded on new nanostructured TiO2 prepared by chemical vapor condensation for enhanced NH3-based selective catalytic reduction (SCR) at low temperatures Article 10.1039/c4cp02025a 1 PHYSICAL CHEMISTRY CHEMICAL PHYSICS, v.16, no.33, pp.17900 - 17907 PHYSICAL CHEMISTRY CHEMICAL PHYSICS 16 33 17900 17907 scie scopus 000341064800061 2-s2.0-84905494125 Chemistry, Physical Physics, Atomic, Molecular & Chemical Chemistry Physics Article VISIBLE-LIGHT PHOTOCATALYTIC ACTIVITY IMPREGNATION METHOD V2O5/TIO2 NO CVC NANOPARTICLES PERFORMANCE NH3 PARTICLES selective catalytic reduction (SCR) surface phenomena nanostructured TiO2 chemical vapor condensation low temperatures