纳米鼻——微小的碳纳米管能嗅出有毒气体

• 出 处: 光机电信息
• 发表日期: 2000年04期
• 关键词: 碳纳米管 纳米 纳米钢笔 有毒气体 温室效应 除污 斯坦福 酸雨 工程师们 浓度

继纳米钢笔和纳米镊子之后,化学新秀一碳纳米管实现了一种更切合实际的应用.斯坦福大学的研究人员发现碳纳米管可以用来探测有毒的二氧化氮和氨气.科学家们希望这一发现将引出新一代的环境探测器.二氧化氮和氨气都会导致温室效应和酸雨,因此它们在大气中的含量必须被实时监测.工程师们还需要探测这些气体在某些地方的浓度,例如,测量燃煤工厂中这两种气体的浓度可以检测除污系统的有效性.

Following the introduction of nano-pens and nanoclusters, chemical rookie-CNTs have achieved a more realistic application, and researchers at Stanford University have found that carbon nanotubes can be used to detect toxic nitrogen dioxide and ammonia, and scientists hope this As soon as they were discovered, a new generation of environmental detectors would emerge that led to both greenhouse effects and acid rain, so their content in the atmosphere must be monitored in real time. Engineers also need to probe the concentration of these gases in some places, For example, measuring the concentration of both gases in a coal plant can detect the effectiveness of the decontamination system.