caa a22 4500 463228413 CHVBK 20180405153234.0 cr unu---uuuuu 170326e20070901xx s 000 0 eng 10.1007/s10853-006-1490-9 doi (NATIONALLICENCE)springer-10.1007/s10853-006-1490-9 Synthesis of mesoporous nanocrystalline zirconia with tetragonal crystallite phase by using ethylene diamine as precipitation agent [Elektronische Daten] [Mehran Rezaei, Seyed Alavi, Saeed Sahebdelfar, Liu Xinmei, Zi-Feng Yan] Mesoporous nanocrystalline zirconia with high surface area and pure tetragonal crystallite phase has been prepared by bifunctional ethylene diamine as both precipitating agent for ZrO(NO3)2 to ZrO(OH)2 and colloidal protecting agent for the ZrO(OH)2 nanoparticles. The effect of refluxing time and temperature on the structural properties of the zirconia were investigated. The obtained results showed that the increasing in refluxing time and temperature improved the thermal stability and increased the tetragonal content of the zirconia. The results also showed that the addition of Pluronic P123 block copolymer surfactant acted as a cosurfactant and increased the specific surface area of the zirconia. Springer Science+Business Media, LLC, 2007 Rezaei Mehran Chemical Engineering Department, Iran University of Science and Technology, Tehran, Iran aut Alavi Seyed Chemical Engineering Department, Iran University of Science and Technology, Tehran, Iran aut Sahebdelfar Saeed Petrochemical Research & Technology Company (NPC-RT), Tehran, Iran aut Xinmei Liu State Key Laboratory for Heavy Oil Processing, Key Laboratory of Catalysis, CNPC, China University of Petroleum, 257061, Dongying, China aut Yan Zi-Feng State Key Laboratory for Heavy Oil Processing, Key Laboratory of Catalysis, CNPC, China University of Petroleum, 257061, Dongying, China aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/17(2007-09-01), 7086-7092 0022-2461 42:17<7086 2007 42 10853 https://doi.org/10.1007/s10853-006-1490-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-1490-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Rezaei Mehran Chemical Engineering Department, Iran University of Science and Technology, Tehran, Iran aut NATIONALLICENCE 700 1- Alavi Seyed Chemical Engineering Department, Iran University of Science and Technology, Tehran, Iran aut NATIONALLICENCE 700 1- Sahebdelfar Saeed Petrochemical Research & Technology Company (NPC-RT), Tehran, Iran aut NATIONALLICENCE 700 1- Xinmei Liu State Key Laboratory for Heavy Oil Processing, Key Laboratory of Catalysis, CNPC, China University of Petroleum, 257061, Dongying, China aut NATIONALLICENCE 700 1- Yan Zi-Feng State Key Laboratory for Heavy Oil Processing, Key Laboratory of Catalysis, CNPC, China University of Petroleum, 257061, Dongying, China aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/17(2007-09-01), 7086-7092 0022-2461 42:17<7086 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer