材料科学
一氧化碳
双金属片
干涉测量
光纤传感器
检出限
光纤
选择性
纤维
一氧化碳
迈克尔逊干涉仪
吸附
X射线光电子能谱
分析化学(期刊)
化学工程
光学
催化作用
复合材料
金属
色谱法
化学
物理
工程类
有机化学
冶金
生物化学
作者
Juncheng Zhou,Xinyue Huang,Wenlin Feng
出处
期刊:Physica Scripta
[IOP Publishing]
日期:2022-12-14
卷期号:98 (1): 015012-015012
被引量:7
标识
DOI:10.1088/1402-4896/aca848
摘要
Abstract A Michelson interferometric carbon monoxide (CO) fiber-optic sensor based on Co/Ni-MOF-74 is proposed and fabricated. The bimetallic-ion-coordination MOFs material Co/Ni-MOF-74 was prepared by solvothermal method. Through XRD and XPS characterizations, the results show that Co/Ni-MOF-74 and Ni-MOF-74 have the same crystal structure. Co/Ni-MOF-74 has a good adsorption effect on CO, and it is integrated into the optical fiber sensing structure for CO detection. In the CO concentration range of 0–35 ppm, the sensitivity and linearity are 0.022 35 dB/ppm and 0.999 36, respectively. The detection limit of the sensor is about 1.990 46 ppm. The presented fiber-optic sensor has excellent selectivity, resistance to temperature interference and good time stability, and it is expected to be applied to the detection of trace CO.
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