Acetone gas sensors based on graphene-ZnFe2O4 composite prepared by solvothermal method

Liu, Feng; Chu, Xiangcheng; Dong, Yaping; Zhang, Wang-bing; Sun, Wei; Shen, Liming

doi:10.1016/j.snb.2013.06.065

Cited by 163 publications

(53 citation statements)

References 18 publications

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“…The results reflected that ZnFe 2 O 4 -based sensors had good selectivity for acetone in the concentration range from 20 to 200 ppm. The response value of ZnFe 2 O 4 -based sensor was 39.5 for 200 ppm acetone gas at 200 • C, which was higher than the previous reports [18,[35][36][37][38].…”

Section: Gas-sensing Propertiescontrasting

confidence: 59%

ZnFe2O4 nanoparticles: Synthesis, characterization, and enhanced gas sensing property for acetone

Zhang

Song

Niu

et al. 2015

Sensors and Actuators B: Chemical

163

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a b s t r a c tZnFe 2 O 4 nanoparticles with diameter of ca.10 nm were successfully synthesized under hydrothermal conditions without using any surfactant or structure-directing agents. The structure, composition and morphology of the samples were characterized by means of powder X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), field-emission scanning electron microscopy (SEM), transmission electron microscopy (TEM), diffuse reflectance spectra (DRS) and the Brunauer-Emmett-Teller (BET) surface area measurement. The results showed that the mole ratio of reactants ZnO to FeCl 3 played an important role in controlling the composition and morphology of the products. BET specific surface area of ZnFe 2 O 4 nanoparticles was evaluated to be 115.6 m 2 g −1 . Interestingly, as-prepared ZnFe 2 O 4 nanoparticles displayed enhanced gas sensing performance to acetone, which response value reached 39.5 for 200 ppm acetone gas at lower optimum working temperature of 200 • C, in comparison with the precursor ZnO (4.2) at the same condition. The gas sensing property demonstrates that as-prepared ZnFe 2 O 4 has potential applications in the detection of acetone.

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Section: Gas-sensing Propertiescontrasting

confidence: 59%

ZnFe2O4 nanoparticles: Synthesis, characterization, and enhanced gas sensing property for acetone

Zhang

Song

Niu

et al. 2015

Sensors and Actuators B: Chemical

163

View full text Add to dashboard Cite

show abstract

“…A popularly and widely accepted sensing mechanism of ZnFe 2 O 4 sensors is based on the change in resistance of the sensor by the adsorption and desorption process of oxygen molecules on the surface of ZnFe 2 O 4 [24][25][26]36]. When the sensor is exposed to air atmosphere, oxygen molecules absorb to the On exposure to acetone, ethanol or other reducing gases atmosphere at a moderate temperature, these gas molecules will react with the absorbed oxygen species (Eqs.…”

Section: Gas Sensing Mechanismmentioning

confidence: 99%

Highly sensitive acetone gas sensor based on porous ZnFe2O4 nanospheres

Zhou

Liu

Wang

et al. 2015

Sensors and Actuators B: Chemical

211

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“…In detection of gases such as acetone, ammonia gives significant advantage in various applications, such as industrial manufacturing, environmental monitoring, and finding out of toxic gas or volatility poisonous chemical leakage [3].…”

Section: Introductionmentioning

confidence: 99%

Room-temperature gas sensor based on semiconductor nanoscale heterostructures ZnS/CdS

Prokopenko¹,

Gunya²,

Makhno³

et al. 2017

Him. Fiz. Tehnol. Poverhni

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Acetone gas sensors based on graphene-ZnFe2O4 composite prepared by solvothermal method

Cited by 163 publications

References 18 publications

ZnFe2O4 nanoparticles: Synthesis, characterization, and enhanced gas sensing property for acetone

ZnFe2O4 nanoparticles: Synthesis, characterization, and enhanced gas sensing property for acetone

Highly sensitive acetone gas sensor based on porous ZnFe2O4 nanospheres

Room-temperature gas sensor based on semiconductor nanoscale heterostructures ZnS/CdS

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