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

文献类型：期刊论文

作者Li, Jiamin3,4; Li, Yuxuan3,4; Li, Shenghong2,4; Guan, Yafeng1,4
刊名SENSORS AND ACTUATORS B-CHEMICAL
出版日期2024-06-15
卷号409页码:11
关键词Bilayer structure sensor H 2 S sensing Electrohydrodynamic jet printing Structural sensitization
DOI10.1016/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%.
WOS关键词GAS SENSOR ; SENSING PROPERTIES ; PD ; OXIDATION ; DYNAMICS
资助项目National Natural Science Foundation of China[22027809] ; Chinese Academy of Sciences[YJKYYQ20200007]
WOS研究方向Chemistry ; Electrochemistry ; Instruments & Instrumentation
语种英语
WOS记录号WOS:001204822300001
出版者ELSEVIER SCIENCE SA
资助机构National Natural Science Foundation of China ; Chinese Academy of Sciences
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.

入库方式： OAI收割

来源：深海科学与工程研究所

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