Deshpande S, Karakoti A, Londe G, Cho H J, Seal S
Advanced Materials Processing and Analysis Center, 4000, Central Florida Boulevard, Orlando, Fl 32816, USA.
J Nanosci Nanotechnol. 2007 Sep;7(9):3354-7. doi: 10.1166/jnn.2007.872.
Room temperature sensing of hydrogen using randomly oriented tin oxide nanowires has been demonstrated successfully. The role of surface functionalization of nanowires with platinum catalyst in rapid hydrogen detection is also studied. These nanowires were successfully incorporated into a micro-electro-mechanical (MEMS) device. The device can successfully detect hydrogen gas (as low as 500 ppm) with response time as low as 10 sec. Effect of aspect ratio of the nanowires on diffusion of hydrogen molecules in the tin oxide nanowires is elucidated in detail.
已成功证明使用随机取向的氧化锡纳米线对氢气进行室温传感。还研究了用铂催化剂对纳米线进行表面功能化在快速氢气检测中的作用。这些纳米线已成功集成到微机电（MEMS）器件中。该器件能够成功检测氢气（低至500 ppm），响应时间低至10秒。详细阐明了纳米线的纵横比对氢气分子在氧化锡纳米线中扩散的影响。
