非阻塞I/O
甲醛
甲醇
检出限
丙酮
电阻式触摸屏
材料科学
甲苯
氯仿
分析化学(期刊)
灵敏度(控制系统)
兴奋剂
薄膜
每个符号的零件数
化学
纳米技术
光电子学
色谱法
有机化学
催化作用
电气工程
电子工程
工程类
作者
James A. Dirksen,Kristin Duval,Terry A. Ring
标识
DOI:10.1016/s0925-4005(01)00898-x
摘要
The suitability of both pure and Li-doped NiO as a thin-film resistive gas sensor for formaldehyde has been investigated. Pure NiO had a linear formaldehyde sensitivity of 0.825 mV ppm−1 while that for 0.5 at.% Li-doped NiO was 0.488 mV ppm−1 at 600°C. These gas-sensing materials also showed similar sensitivity for methanol and acetone as well as a reduced sensitivity for toluene and ethanol. Chloroform was a poison for these gas-sensing materials. Due to resistive noise, the detection limit for formaldehyde was found to be ≈40 ppm.
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