Self-template derived ZnFe2O4 double-shell microspheres for chemresistive gas sensing

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	Self-template derived ZnFe2O4 double-shell microspheres for chemresistive gas sensing
	Thomas, Tiju; Ruan, Shengping; Yang, Minghui; Qu, Fengdong; Shang, Wenan
刊名	SENSORS AND ACTUATORS B-CHEMICAL
	2018
卷号	265 页码:625-631
关键词	Lithium-ion Batteries Oxide Nanostructures Selective Detection Interior Structures Silicon Nanowire Sensor Acetone Nanoparticles Nanospheres Diagnosis
英文摘要	Porous ZnFe2O4 double-shell, york-shell, and solid microspheres are synthesized using a combination of hydrothermal method and thermal treatment (carried out at appropriate temperature determined via gravimetry). The specific surface area is varied by adopting different heating rates during the thermal treatment; double-walled structure is formed at higher heating rates. Gas sensors based on ZnFe2O4 double-shell microspheres showed a promising response (when compared to york-shell and solid microspheres), when tested with similar to 20 ppm acetone (R-air/R-gas = 13.6). There is little or no response to interferential gases, including ethanol, methanol, xylene, toluene, benzene, carbon monoxide, hydrogen sulfide and nitrogen dioxide. The gas sensor showed an almost linear response to acetone concentration and a low detection limit for acetone of 0.13 ppm (making it compliant with analytic requirements for acetone-threat or diabetes-breathalyzer tests). The observed gas sensing performance (includes response time similar to 6-10 s at 206 degrees C operating temperature and good cyclability) suggests that the ZnFe2O4 double shell microspheres presented here are prospective sensing materials for acetone detection. (C) 2018 Elsevier B.V. All rights reserved.
学科主题	Chemistry
语种	英语
公开日期	2018-12-04
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/17315]
专题	2018专题
推荐引用方式 GB/T 7714	Thomas, Tiju,Ruan, Shengping,Yang, Minghui,et al. Self-template derived ZnFe2O4 double-shell microspheres for chemresistive gas sensing[J]. SENSORS AND ACTUATORS B-CHEMICAL,2018,265:625-631.
APA	Thomas, Tiju,Ruan, Shengping,Yang, Minghui,Qu, Fengdong,&Shang, Wenan.(2018).Self-template derived ZnFe2O4 double-shell microspheres for chemresistive gas sensing.SENSORS AND ACTUATORS B-CHEMICAL,265,625-631.
MLA	Thomas, Tiju,et al."Self-template derived ZnFe2O4 double-shell microspheres for chemresistive gas sensing".SENSORS AND ACTUATORS B-CHEMICAL 265(2018):625-631.