Jang Dong Mi, Jung Hyuck, Hoa Nguyen Duc, Kim Dojin, Hong Soon-Ku, Kim Hyojin
Department of Materials Science and Engineering and Center for NanoBioEngineering and Spintronics, Chungnam National University, Daejeon, 305-764, Republic of Korea.
J Nanosci Nanotechnol. 2012 Feb;12(2):1425-8. doi: 10.1166/jnn.2012.4656.
Tin oxide-single wall carbon nanotube (SWCNT) nano composites are synthesized for gas sensor application. The fabrication includes deposition of porous SWCNTs on thermally oxidized SiO2 substrates followed by rheotaxial growth of Sn and thermal oxidation at 300, 400, 500, and 600 degrees C in air. The effects of oxidation temperature on morphology, microstructure, and gas sensing properties are investigated for process optimization. The tin monoxide oxidized at 400 degrees C showed the highest response at the operating temperature of 200 degrees C. Under the optimized test condition, the composite structure showed better response than both structures of SWCNTs and thin film SnO.
为了气体传感器应用而合成了氧化锡-单壁碳纳米管（SWCNT）纳米复合材料。制备过程包括在热氧化的SiO2衬底上沉积多孔SWCNT，随后进行锡的流变轴生长以及在300、400、500和600摄氏度的空气中进行热氧化。为了优化工艺，研究了氧化温度对形态、微观结构和气敏性能的影响。在400摄氏度氧化的一氧化锡在200摄氏度的工作温度下显示出最高的响应。在优化的测试条件下，复合结构比SWCNT和薄膜SnO这两种结构都表现出更好的响应。
