钙钛矿型复合氧化物气敏特性的研究  

Study of the gas sensor properties of perooskite-type mixed axides

作　　者：杜少斌[1] 王瑾[2] 马福泰[2] 郑洪元[2] 黄道德 

机构地区：[1]云南师范大学化学系 [2]杭州大学化学系 [3]淮北煤炭师范学院化学系

出　　处：《淮北煤师院学报（自然科学版）》1991年第4期54-59,共6页Journal of Huaibei Teachers College(Natural Sciences Edition)

摘　　要：本文合成了钙钛矿型复合氧化物LaMn1-xNixO_3(0. 0≤x≤1. 0) 。用薄膜法测定了本体系样品电导的变化性质,结合催化氧化活性结果讨论了可能的响应机理。利用热重(TG)、差热分析(DTA)和上述机理讨论了样品电导随温度变化的规律,最后还研究了不同还原性气体对体系电导变化的影响。各种还原性气体在同一样品上的响应速率次序为:乙醚>丙酮>甲醇>CO>H_2。Perooskite-type mixed oxides,LaMn_(1-x)Ni_xO_3(0. 0≤x≤1. 0) ,are prepared.Conductive properties of this System oxides are measured by thin film conduct method,and the probable response mechanism is discussed with the activities of catalytic oxidation.at the same time,conductive changes with temperature are discussed through using TGDTA and mechanism.Last,the effect of different reductive gases on the re-sponse sensitivities of these oxides,the order of response ratiois CH_3CH_2OCH_2CH_3>CH_3(?)CH_3>CH_3OH>CO>H_2.

关 键 词：气敏元件 钙钛矿型 复合氧化物 

分 类 号：TN379[电子电信—物理电子学]