掺杂镍酸镧材料的气敏特性研究  

STUDIES ON GAS SENSITIVE CHARACTER OF LaNiO_3CONTAINED DOPANTS

作　　者：娄向东[1] 黄春梅[1] 王弘 沈瑜生 

机构地区：[1]河南师范大学化学系,中国科技大学材料科学与工程系

出　　处：《郑州轻工业学院学报（自然科学版）》1994年第S1期70-73,共4页Journal of Zhengzhou University of Light Industry:Natural Science

摘　　要：研究了ＴｉＯ＿２掺杂ＬａＮｉＯ＿３的气敏特性，实验表明，在中等掺杂时，材料的电导适中，气敏性能最好；ＸＲＤ证实，掺杂后ＬａＮｉＯ＿３仍属于ＡＢＯ＿３钙钛矿结构，且有新相生成。还对掺杂ＳｎＯ＿２，Ｓｂ＿２Ｏ＿３及Ｖ＿２Ｏ＿５进行了研究，指出ＳｎＯ＿２中等掺杂及Ｓｂ＿２Ｏ＿３，Ｖ＿２Ｏ＿５低掺杂时，同样能使ＬａＮｉＯ＿３的气敏性质有所改善。The gas sensitive character when TiO_2 as dopant has been studied.The experiment results show that when the quantity of dopants is medium,the conductance is moderate,and the gas sensitive character is best.XRD indicated after doping the LaNiO3 belongs to perovskite structure,and new phase is formed. The gas sensitive characters have been studied when SnO_2 ,Sb_2O_3 and V_2O_5 as dopants respectively. The results show:medium quantity of SnO_2 and small quantity of V_2O_5 or Sb_2O_3 can also improve the gas sensitive character of LaNiO_3.

关 键 词：镍酸盐 掺杂 气敏元件 

分 类 号：TG146.45[一般工业技术—材料科学与工程]