In situ preparation of SnO2/Pd@TiO2 bilayer sensor for highly sensitive and fast detection of H2S based on electrohydrodynamic jet printing

doi:10.1016/j.snb.2024.135591

CORC > 深海科学与工程研究所 > 中国科学院深海科学与工程研究所 > 深海科学研究部

	In situ preparation of SnO2/Pd@TiO2 bilayer sensor for highly sensitive and fast detection of H2S based on electrohydrodynamic jet printing
	Li, Jiamin 3,4; Li, Yuxuan 3,4; Li, Shenghong 2,4; Guan, Yafeng 1,4
刊名	SENSORS AND ACTUATORS B-CHEMICAL
	2024-06-15
卷号	409 页码:11
关键词	Bilayer structure sensor H 2 S sensing Electrohydrodynamic jet printing Structural sensitization
DOI	10.1016/j.snb.2024.135591
英文摘要	A micron-scale bilayer H2S sensor fabricated by electrohydrodynamic (EHD) jet printing in situ was evaluated. The prepared sensor consisted of a Pd@TiO2 cover layer (porous catalytic sensing layer), a SnO2 bottom layer (electron transport layer) and a Sn-Ti transition layer between them. The addition of TiO2 nanoparticles to the cover layer led to a porous structure after one-step sintering. The increase in specific surface area and the formation of heterojunction effectively improved the sensor sensitivity. The PdO nanoparticles loaded on the surface of TiO2 nanoparticles further improved the performance due to its catalysis. Since the kinetic energy of droplets of the same size generated by EHD inkjet printing is about 48 times that of inkjet printing, the film density is much higher than that of inkjet printing. The relatively dense bottom layer, and the thick and stable transition layer improved the long-term stability of the sensor. The detection limit of the sensor is 6 ppb, with linear range of 0.02-10 ppm H2S. The response and recovery times are 7 s and 45 s (2 ppm H2S), respectively. After 9 months of intermittent measurement, the response of the sensor to 2 ppm H2S decreased by only 10.6%.
资助项目	National Natural Science Foundation of China[22027809] ; Chinese Academy of Sciences[YJKYYQ20200007]
WOS关键词	GAS SENSOR ; SENSING PROPERTIES ; PD ; OXIDATION ; DYNAMICS
WOS研究方向	Chemistry ; Electrochemistry ; Instruments & Instrumentation
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:001204822300001
资助机构	National Natural Science Foundation of China ; Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.idsse.ac.cn/handle/183446/10992]
专题	深海科学研究部
通讯作者	Guan, Yafeng
作者单位	1.Chinese Acad Sci, Inst Deep Sea Sci & Engn, 28 Luhuitou Rd, Sanya 572000, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Key Lab Deep Sea Composit Detect Technol Liaoning, Dalian 116023, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 4.Chinese Acad Sci, Dalian Inst Chem Phys, CAS Key Lab Separat Sci Analyt Chem, Dept Instrumentat & Analyt Chem, 457 Zhongshan Rd, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Li, Jiamin,Li, Yuxuan,Li, Shenghong,et al. In situ preparation of SnO2/Pd@TiO2 bilayer sensor for highly sensitive and fast detection of H2S based on electrohydrodynamic jet printing[J]. SENSORS AND ACTUATORS B-CHEMICAL,2024,409:11.
APA	Li, Jiamin,Li, Yuxuan,Li, Shenghong,&Guan, Yafeng.(2024).In situ preparation of SnO2/Pd@TiO2 bilayer sensor for highly sensitive and fast detection of H2S based on electrohydrodynamic jet printing.SENSORS AND ACTUATORS B-CHEMICAL,409,11.
MLA	Li, Jiamin,et al."In situ preparation of SnO2/Pd@TiO2 bilayer sensor for highly sensitive and fast detection of H2S based on electrohydrodynamic jet printing".SENSORS AND ACTUATORS B-CHEMICAL 409(2024):11.