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J. Cent. South Univ. (2021) 28: 1305-1315 DOI: https://doi.org/10.1007/s11771-021-4698-6 Porous layered La0.6Sr0.4Co0.2Fe0.8O3 perovskite with enhanced catalytic activities for oxygen reduction XU... to synthesize La0.6Sr0.4Co0.2Fe0.8O3 (LSCF) perovskite oxide. The obtained porous layered LSCF has a large specific surface area of 23.74 m2/g, four times higher than that prepared by the traditional......
One-Step Synthesis of Nanocrytalline Perovskite LaMnO3 Powders via Microwave-Induced Solution Combustion Route Li Fengsheng1,Liu Yang1,Chen Weifan1,Liu Leili2 (1.National Special Superfine Powder...:Perovskite LaMnO3 powders with an average crystallite size of 12.5 nm were rapidly synthesized via a microwave-induced autocombustion reaction using glycine as a fuel and nitrate as an oxidant. After......
Preparation and Physicochemical Characterization of La1-xCexCoO3+δ Perovskite Catalyst and Its Methane Catalytic Combustion 龙志奇1,崔大立1,李明来1,崔梅生1,张顺利1,黄小卫1 (1.Grirem Advanced Materials Co.,Ltd,General Research Institute for Nonferrous Metals,Beijing 100088,China) Abstract:Perovskite oxide LaCoO3 methane catalytic material was synthesized with citric acid complexation and bubbling method.The......
)Sr0.33MnO3 perovskite oxides were prepared at relatively low calcinating temperature of 600℃ and 800℃ for 10h using amorphous complex precursor. Curie temperature(Tc) and magnetocaloric effects(MCE) were investigated. X-ray diffraction(XRD) and electron diffraction(ED) reveal that the resulting products are of pure single-phase rhombohedral perovskite structure. Transmission electron microscopy(TEM......
Characterization of A-site excessive perovskite La0.7-xSmx+0.02Ca0.3CrO3-δ LIU Xingqin1,MENG Guangyao1,JIANG Cairong1,ZHOU Xiaoliang1,DENG Feijun1,MA Jianjun1 (1.Department of Materials Science and Engineering,University of Science and Technology of China,Hefei 230026,China) Abstract:La0.7-xSmx+0.02Ca0.3CrO3-δ(0≤x≤0.4) powders with A-site excessive perovskite structure were synthesized by auto......
Multiferroism in Pr2FeCrO6 perovskiteS.RaviDepartment of Physics,Mepco Schlenk Engineering College摘 要:Pr2FeCrO6 perovskite crystallizes in an orthorhombic structure with R3c space group. Magnetic study has revealed that Pr2FeCrO6 exhibits room-temperature ferromagnetism with a Curie temperature of about 562 K. Pr2FeCrO6 also exhibits weak......
Multiferroism in Pr2FeCrO6 perovskiteS.RaviDepartment of Physics,Mepco Schlenk Engineering College摘 要:Pr2FeCrO6 perovskite crystallizes in an orthorhombic structure with R3c space group. Magnetic study has revealed that Pr2FeCrO6 exhibits room-temperature ferromagnetism with a Curie temperature of about 562 K. Pr2FeCrO6 also exhibits weak......
(SEM), ferroelectric and electric field-induced strain characterizations. XRD analysis revealed a pure perovskite phase without any traces of secondary phases. Ferroelectric and bipolar field induced... ceramics; BNT; perovskite structure; field induced strain 1 Introduction Lead-based ceramics with perovskite structure, such as Pb(Zr,Ti)O3 (PZT) and PZT-based multicomponent materials are widely......
)- NbO3-xLiNbO3 (x=0.05, 0.06) is a promising high-temperature lead free piezoelectric ceramic. Key words: (K0.5Na0.5)NbO3-LiNbO3; lead-free piezoelectric ceramics; piezoelectric properties; perovskite 1...)NbO3-xLiNbO3, a complete solid solution with perovskite structure can be formed when x≤0.07[16]. Fig.1 shows the XRD profiles of the (1-x)(K0.5Na0.5)NbO3-xLiNbO3(x=0.06) powders calcined at 850 ℃ for 5 h......
at 600, 650 and 750℃. Key words: BET thin film; ferroelectric property; metal-organic decomposition; Bi-layered perovskite 1 Introduction Many researches have been done on candidates... It is obvious that the XRD peak corresponding to (117) reflection appears above 600 ℃. This indicates that the beginning of crystallization to a Bi-layered perovskite is below 600 ℃. From 600 ℃ to 750 ℃, BET......
