SnO2的黄麻模板法合成及气敏性能研究
Studies of Gas Sensing Performance of Jute Template Synthesized SnO2 Nanoparticles
摘要: 用五水四氯化锡和乙醇溶液(乙醇:水 = 1:1)为原料，以黄麻为模板通过水热法和沉淀法制备出了不同形貌的二氧化锡(SnO2)纳米材料，利用扫描电镜(SEM)和X-射线衍射仪(XRD)对其形貌和成分进行表征和分析，并将其制成气敏元件，进行气敏性能测试。结果表明，两种气敏元件对乙醇、丙酮、甲醇、苯和氨气等均有响应。在50 ppm乙醇气体环境下，水热法合成的样品最佳工作温度是240℃，其灵敏度值达到23；沉淀法合成的样品最佳工作温度是330℃，灵敏度能达到28。两种气敏元件均对乙醇表现出很好的选择性和灵敏度，而对剩余三种气体的灵敏度则极低。
Abstract: In the case of jute as the template, different morphologies of stannic oxide (SnO2) nanomaterials were prepared by hydrothermal method and precipitation method in which stannic chloride pen-tahydrate and ethanol solution (ethanol:water = 1:1) were used as raw materials, which were characterized by scanning electron microscopy, X-ray diffraction and gas-sensing test. The results showed that two gas sensors were responsive to ethanol, acetone, methanol, benzene, and ammonia. In the 50 ppm ethanol gas environment, the optimum temperature of the sample synthesized by hydrothermal method was 240˚C, with a sensitivity of 23, and the sample synthesized by pre-cipitation method was 330˚C with 28. Both sensors showed good selectivity and sensitivity to eth-anol, while the sensitivity of the remaining three gases was extremely low.
文章引用：高颖洁, 连晓雪, 刘谙诺, 王钰婷. SnO2的黄麻模板法合成及气敏性能研究[J]. 材料科学, 2018, 8(5): 515-521. https://doi.org/10.12677/MS.2018.85059

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