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超微粒ａ－Ｆｅ＿２Ｏ＿３气敏机理初探徐甲强，沈瑜生（化学工程系）（中国科技大学）关键词气敏机理；超微粒氧化铁；表面吸附；气敏效应；电子能谱中图分类号ＴＱ１７４．０５Ｏ６４９．４氧化物气敏材料的敏感机理主要有两种类型：一种是表面控制型（借助气体的表面吸...
Preliminary Study on Gas Sensing Mechanism of Ultrafine Particles a-Fe_2O_3 XU Jiaqiang, SHEN Yusheng (University of Science and Technology of China) Key words Gas sensing mechanism; Ultrafine iron oxide; Surface adsorption; Gas sensing effect; Electron energy spectrum CLC number TQ174.05O649 .4 There are two main types of sensitive sensitivities for oxide gas sensors: one is a surface-controlled type (gas-based surface ...