• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Conference on Solid-State Sensors, Actuators and Microsystems >Superior gas detection by nanoporous graphene structures
【24h】

Superior gas detection by nanoporous graphene structures

机译：纳米多孔石墨烯结构可实现出色的气体检测

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A new method of combining microwave plasma enhanced chemical vapor deposition (MPCVD) with ultrasonic fragmentation is exploited to prepare nanoporous graphene (Gr) thin film for detection of hazardous gases with high performance, including high sensitivity, linearity, low limit of detection (LOD) and reversibility. Compared with gas sensors based on traditional planar Gr sheets, this nanoporous Gr thin film displays 3.6 times higher response to 1 ppm NO, 10.4 times larger response to NH and 4.2 times higher response to CO, demonstrating the improved sensitivity of nanoporous Gr thin film. The boosted sensitivity is attributed to nanoporous Gr structures, large amounts of defects and oxygenated functional groups. Note that ultrafast signal recovery is achieved at room temperature, bypassing the requirement of external stimulus to facilitate the recovery. Furthermore, the response is linear with gas concentration.
机译：开发了一种结合微波等离子体增强化学气相沉积（MPCVD）和超声破碎的新方法来制备纳米多孔石墨烯（Gr）薄膜，该薄膜具有高性能，包括高灵敏度，线性，低检测限（LOD）和可逆性。与基于传统平面Gr片的气体传感器相比，该纳米多孔Gr薄膜对1 ppm NO的响应高3.6倍，对NH响应的响应高10.4倍，对CO响应的响应高4.2倍，证明了纳米多孔Gr薄膜的灵敏度得到了提高。灵敏度的提高归因于纳米多孔Gr结构，大量缺陷和氧化官能团。请注意，在室温下可实现超快信号恢复，而无需外部刺激即可促进恢复。此外，响应与气体浓度成线性关系。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号