纳米Sn-Zn-Fe复合氧化物气敏材料的研制

Preparation of Gas Sensitive Nanocrystalline Sn-Zn-Fe Composite Oxide

本文采用纳米材料制备技术（共沉淀法），制备了十二种Ｓｎ－Ｚｎ－Ｆｅ复合氧化物气敏材料，将其制成元件后，进一步测试了气敏性能。结果发现其敏感度比用ＳｎＯ２、ＺｎＯ和Ｆｅ３Ｏ４机械混合制得的烧结元件大为提高，且有较好的选择性。

Twelve gas sesitive nanocrystalline materials of Sn-Zn-Fe composite-oxide were prepared with the coprecipitation method. Most of the materials have higher sensitivity than C 2H 5OH,coal gas,C 4H 10 and H 2S. Some have higher selectivity than C 2H 5OH