| 2 | A NEW RARE-EARTH VANADATE LaBa_2V_3O_(11)显示文摘A new rare-earth vanadate LaBa2V3O11is synthesized by the conventional solidstate reaction.The single phase can be obtained at sintering temperature of 1010°C.TheX-ray powder diffraction shows that the new compound has tetragonal structure with cellparameters a of 7.94 and c of 24.27 The LaBaaV3O11can be decomposed to LaVO4.Ba3(VO2)2 and V2O5 by higher sitering temperature than 1010°C.The as-sintered sample isinsulator with resistivity of 10 12 ohm cm.Furthermore,if the as-sintered sample wasannealed under H2 atmosphere,the LaBa2V3O11decomposed to LaVO3 and BaYO4 despite ofthe lower annealing temperature of 950°C. | X.L.WANG S.X.SHANG Z.P.AI H.WANG H.C.CHEN M.H.JIANG Institute of Crystal Materials,Shandong University,Jinan 250100.Shandong Experimental Center,Shandong University,Jinan 250100,Shandong | 1993 | Chinese Chemical Letters1993，4，6： | 1 |
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