共搜索到7306条信息,每页显示10条信息,共731页。用时:0小时0分0秒345毫秒
Determination of Impurity Elements in Pure Cerium Oxide Product Chen Limin1,Li Jie1,Li Peizhong1 (1.Inner Mongolia Baogang Rare Earth High Science and Technology Co. Ltd.,Baotou 014010, China) Abstract:Determination of the rare earth impurity in pure cerium oxide is done by ICP-MS.The interference and other factors which affect analytical results were discussed.The accuracy are between 0.81......
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 of double perovskite-type oxide LaSrFeCoO6 for chemical looping steam methane reforming to produce syngas and hydrogen赵坤1,2,3,沈阳3,何方1,黄振1,魏国强1,郑安庆1,李海滨1,赵增立11. Key Laboratory of Renewable... Institute of Energy Conversion, Chinese Academy of Sciences3. University of Chinese Academy of Sciences摘 要:Double-perovskite type oxide LaSrFeCoO6 was used......
Preparation of double perovskite-type oxide LaSrFeCoO6 for chemical looping steam methane reforming to produce syngas and hydrogen赵坤1,2,3,沈阳3,何方1,黄振1,魏国强1,郑安庆1,李海滨1,赵增立11. Key Laboratory of Renewable... Institute of Energy Conversion, Chinese Academy of Sciences3. University of Chinese Academy of Sciences摘 要:Double-perovskite type oxide LaSrFeCoO6 was used......
Structure and Electrical Conductivity of Compositely Doped Oxide Solid Electrolyte La0.8Sr0.2Ga0.8Mg0.12Co0.08O2.8马叙,赵捷,王志奇,包俊成,李建平,孙家枢摘 要:(La,Sr)(Ga, Mg)O3-δ, (LSGM) perovskite compositions doped with transition metal Co on the B-site were prepared by solid state reaction. The effect of partial substitution of Ga for Co, La0.8Sr0.2Ga0.8Mg0.12Co0.08O2.8......
on HTB (hexagonal tungsten bronze) layers formed by the arrangement of oxygen octahedra. Key words:phase behavior; layered perovskite; pyrochlore-related structure; rare earth manganese oxide; [全文内... BaLn2Mn2O7 (Ln=rare earth) with the layered perovskite type and Ln2(Mn, M)O7 with pyrochlore-related structure were studied since these compounds show many kinds of phases and unique phase transitions......
Kinetics of reductive leaching of manganese oxide ore using cellulose as reductantWU Fang-fang(武芳芳)1, 2, ZHONG Hong(钟宏)1, 2, WANG Shuai(王帅)1, 2, LAI Su-feng(赖素凤)1, 2(1. College of Chemistry..., China)Abstract:The kinetics of reductive leaching of manganese from a low-grade manganese oxide ore were studied using cellulose as reductant in dilute sulfuric acid medium. It was found that when......
Formation of unidirectional nanoporous structures in thickly anodized aluminum oxide layer Hyun-Chae NA1, Taek-Jin SUNG1, Seok-Heon YOON1, Seung-Kyoun HYUN1, Mok-Soon KIM1, Young-Gi...; Abstract: A series of anodic aluminum oxide(AAO) was grown on the commercially pure 1050......
. The electrical properties of solid oxide electroltytes[J]. Chemical Reviews, 1970, 70: 339-342. [21]Snijkers F M M , Buekenhoudt A, Luyten J J, et al. Proton conductivity in Perovskite type yttrium doped barium...=Ca, Sr, Ba) precursor powders doped with Zr. From the XRD patterns and thermal analysis, 600℃ is the reasonable calcination temperature for MCeO3 to obtain fine powders with perovskite structure, which......
Article ID: 1003-6326(2005)03-0600-06 Characterization of oxide films formed on magnesium alloys using bipolar pulse microarc oxidation in phosphate solutions WANG Li-shi(王立世... morphology and chemical composition of the oxide films formed on pure magnesium and AZ91D alloy in aqueous electrolytes which contained sodium hexafluorinealuminate(Na3AlF6), potassium hydroxide (KOH......