南方科技大学知识苑(SUSTech KC): High Sensitivity and Low Detection Limit of Formaldehyde Sensor Based on In2O3@ZnO@ZIF-CoZn Core Shell Nanofibers

题名	High Sensitivity and Low Detection Limit of Formaldehyde Sensor Based on In2O3@ZnO@ZIF-CoZn Core Shell Nanofibers
作者	Changhui Zhao 1; Suye Pan 1; Xiaohui Li 1; Xi Tang 1; Fei Wang2
发表日期	2024
DOI	10.1109/JSEN.2024.3419432
发表期刊	IEEE Sensors Journal 影响因子和分区
ISSN	2379-9153
卷号	PP 期号:99
摘要	High sensitivity and low detection limit of formaldehyde sensors are extremely essential for indoor air pollution monitoring. Herein, we propose a controllable strategy for the construction of metal oxide semiconductor@metal organic framework (MOS@MOF) core-shell architectures as the sensing material. In2O3@ZnO core-shell nanofibers (IZO CSNFs) are prefabricated by combining electrospinning and atomic layer deposition (ALD) technique, where the ALD-ZnO layer can be regarded as template to obtain cobalt-doped ZIF-8 (ZIF-CoZn) sheath. In comparison to initial IZO CSNFs, the response of IZO@ZIF-CoZn sensor toward 50 ppm formaldehyde can be boosted from 6.6 to 39.4 at 260 °C, and the limit of detection can be as low as 2.1 ppb (@ 20% relative humidity). The enhanced performance of the IZO@ZIF-CoZn sensor should result from the highly efficient adsorption/decomposition of formaldehyde on the surface of ZIF-CoZn. In addition, the effects of core-shell structure, cobalt dopants, interference gases, and moisture on the formaldehyde gas sensing are discussed. Our results provide an insight into the enhancement mechanism of the MOS-based gas sensors by utilizing the functionalized MOF sheaths.
相关链接	[IEEE记录]
收录类别	EI
学校署名	其他
ESI学科分类	ENGINEERING
引用统计
成果类型	期刊论文
条目标识符	http://sustech.caswiz.com/handle/2SGJ60CL/783754
专题	工学院_深港微电子学院
作者单位	1.Institutes of Physical Science and Information Technology, Anhui University, Hefei, China 2.School of Microelectronics, Southern University of Science and Technology, Shenzhen, China
推荐引用方式 GB/T 7714	Changhui Zhao,Suye Pan,Xiaohui Li,et al. High Sensitivity and Low Detection Limit of Formaldehyde Sensor Based on In2O3@ZnO@ZIF-CoZn Core Shell Nanofibers[J]. IEEE Sensors Journal,2024,PP(99).
APA	Changhui Zhao,Suye Pan,Xiaohui Li,Xi Tang,&Fei Wang.(2024).High Sensitivity and Low Detection Limit of Formaldehyde Sensor Based on In2O3@ZnO@ZIF-CoZn Core Shell Nanofibers.IEEE Sensors Journal,PP(99).
MLA	Changhui Zhao,et al."High Sensitivity and Low Detection Limit of Formaldehyde Sensor Based on In2O3@ZnO@ZIF-CoZn Core Shell Nanofibers".IEEE Sensors Journal PP.99(2024).