Protonic conduction in Ca2+-doped La2M2O7 (M = Ce, Zr) with its application to ammonia synthesis electrochemically
作者： Ji-De Wang , Ya-Hong Xie , Zheng-Fang Zhang , Rui-Quan Liu , Zhi-Jie Li
DOI: 10.1016/J.MATERRESBULL.2005.04.008
关键词: Differential thermal analysis 、 Hydrogen 、 Analytical chemistry 、 Conductivity 、 Fast ion conductor 、 Pyrochlore 、 X-ray crystallography 、 Inorganic chemistry 、 Thermal analysis 、 Electrochemistry 、 Materials science
摘要: Complex oxides La{sub 1.95}Ca{sub 0.05}M{sub 2}O{sub 7-{delta}} (M = Ce, Zr) were prepared by sol-gel method and characterized thermal analysis (TG-DTA), X-ray diffraction (XRD). On the sintered complex as solid electrolyte, conductivity was measured in various atmospheres, ammonia synthesized from nitrogen hydrogen at atmospheric pressure states proton conducting cell reactor electrochemical methods. The rates of formation up to 2.0 x 10{sup -9} mol s{sup -1} cm{sup -2} for 0.05}Zr{sub 1.3 0.05}Ce{sub 7-{delta}}, respectively, 520 deg. C.
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