2026-03-06T03:29:28Z https://kansai-u.repo.nii.ac.jp/oai

oai:kansai-u.repo.nii.ac.jp:00022334 2024-05-28T02:15:17Z 528:1588:1628:3013

PREPARATION OF VANADIUM PENTOXIDE NANOPARTICLE-DEPOSITED ALUMINA SUBMICRON PARTICLES FOR CATALYSTS WITHOUT SINTERING Okada, Yoshiki 37112 90211119 Takahashi, Yusuke 50529 Minami, Tomoki 50530 木下, 卓也 50531 Kinoshita, Takuya 90453141 関西大学 Kansai University The formation of vanadium pentoxide (V₂O₅) nanoparticles immobilized on alumina (Al₂O₃) particles was studied in a methane/oxygen coflow diffusion-flame reactor. V₂O₅ nanoparticles formed by the decomposition of vanadium oxytriethoxide were deposited onto Al₂O₃ particles, which were introduced into the flame together with vanadium oxytriethoxide solution. To immobilize the V₂O₅ nanoparticles on Al₂O₃ particles, rapid cooling with a Laval nozzle was applied to the V₂O₅/Al₂O₃ particles formed in the flame. We found that it was possible to suppress the sintering of V₂O₅ nanoparticles on the Al₂O₃ particles when the Al₂O₃ particles were introduced into the flame at a temperature sufficiently high to soften the surfaces of the Al₂O₃ particles. departmental bulletin paper Kansai University 2022-03-20 VoR application/pdf Science and technology reports of Kansai University = 関西大学理工学研究報告 64 1 8 AA12314657 04532198 https://kansai-u.repo.nii.ac.jp/record/22334/files/KU-1100-20220320-01.pdf https://doi.org/10.32286/00026350 http://hdl.handle.net/10112/00026350 https://kansai-u.repo.nii.ac.jp/records/22334 eng