화학공학소재연구정보센터
학회 한국화학공학회
학술대회 1998년 가을 (10/23 ~ 10/24, 조선대학교)
권호 4권 2호, p.1761
발표분야 촉매/반응공학
제목 고체 51V NMR, XRD 및 IR에 의한 V2O5/ZrO2-WO3촉매의 특성 연구
초록 Vanadium oxide catalyst supported on ZrO2-WO3 was prepared by adding the
Zr(OH)4 powder into a mixed aqueous solution of ammonium metavanadate andammonium metatungstate followed by drying and calcining at high temperatures. Thecharacterization of prepared catalysts was performed using solid-state 51V NMR,XRD, and FTIR. In the case of calcination temperature at 773 K, for the samplescontaining low loading V2O5 below 18 wt% vanadium oxide was in a highlydispersed state, while for samples containing high loading V2O5 equal to or above 18wt% vanadium oxide was well crystallized due to the V2O5 loading exceeding theformation of monolayer on the surface of ZrO2-WO3. The ZrV2O7 compound wasformed through the reaction of V2O5 and ZrO2 at 873 K and the compounddecomposed into V2O5 and ZrO2 at 1073 K, which were confirmed by FTIR and 51VNMR.
저자 손종락, 도임자, 배영일
소속 경북대
키워드 Vanadium oxide catalyst; Characterization; IR; XRD; Solid-State 51V NMR
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