Browse > Article
http://dx.doi.org/10.46670/JSST.2021.30.4.191

Highly sensitive xylene sensors using Fe2O3-ZnFe2O4 composite spheres  

Chan, Jin Fang (Department of Materials Science and Engineering, Korea Unversity)
Jeon, Jae Kyoung (Department of Materials Science and Engineering, Korea Unversity)
Moon, Young Kook (Department of Materials Science and Engineering, Korea Unversity)
Lee, Jong-Heun (Department of Materials Science and Engineering, Korea Unversity)
Publication Information
Journal of Sensor Science and Technology / v.30, no.4, 2021 , pp. 191-195 More about this Journal
Abstract
Pure ZnFe2O4 and Fe2O3-ZnFe2O4 hetero-composite spheres were prepared by ultrasonic spray pyrolysis of a solution containing Zn- and Fe-nitrates. Additionally, the sensing characteristics of these spheres in the presence of 5 ppm ethanol, benzene, p-xylene, toluene, and CO (within the temperature range of 275-350 ℃) were investigated. The Fe2O3-ZnFe2O4 hetero-composite sensor with a cation ratio of [Zn]:[Fe]=1:3 exhibited a high response (resistance ratio = 140.2) and selectivity (response to p-xylene/response to ethanol = 3.4) to 5 ppm p-xylene at 300 ℃, whereas the pure ZnFe2O4 sensor showed a comparatively lower gas response and selectivity. The reasons for the superior response and selectivity to p-xylene in Fe2O3-ZnFe2O4 hetero-composite sensor were discussed in relation to the electronic sensitization due to charge transfer at Fe2O3-ZnFe2O4 interface and Fe2O3-induced catalytic promotion of gas sensing reaction. The sensor can be used to monitor harmful volatile organic compounds and indoor air pollutants.
Keywords
Gas sensors; Oxide semiconductors; $Fe_2O_3-ZnFe_2O_4$; Xylene; Ultrasonic spray pyrolysis;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Q. Wei, J. Sun, P. Song, J. Li, Z. Yang, and Q. Wang, "Spindle-like Fe2O3/ZnFe2O4 porous nanocomposites derived from metal-organic frameworks with excellent sensing performance towards triethylamine", Sens. Actuator B-Chem., Vol. 317, p. 128205, 2020.   DOI
2 B. Y. Kim, C. S. Lee, J. S. Park, and J.-H. Lee, "Preparation of Pt-, Ni- and Cr- Decorated SnO2 Tubular Nanofibers and Their Gas Sensing Properties", J. Sens. Sci. Technol, Vol. 23, No. 3, pp. 211-215, 2014.   DOI
3 D. S. Jung, S. B. Park, and Y. C. Kang, "Design of particles by spray pyrolysis and recent progress in its application", Korean J. Chem. Eng., Vol. 27, No. 6, pp.1621-1645, 2010.   DOI
4 J. H. Lee, "Gas sensors using hierarchical and hollow oxide nanostructures: Overview", Sens. Actuator B-Chem., Vol. 140, No. 1, pp. 319-336, 2009.   DOI
5 S. Y. Jeong, J. S. Kim, and J. H. Lee, "Rational Design of Semiconductor-Based Chemiresistors and their Libraries for Next-Generation Artificial Olfaction", Adv. Mater., Vol. 32, No. 51, p. 2002075, 2020.   DOI
6 J. Liu, S. Yang, W. Wu, Q. Y. Tian, S. Cui, Z. Dai, and F. Ren, "3D Flowerlike α-Fe2O3@TiO2 Core-Shell Nanostructures: General Synthesis and Enhanced Photocatalytic Performance", ACS Sustain. Chem. Eng., Vol. 3, No. 11, pp. 2975-2984, 2015.   DOI
7 J. M. Suh, Y. S. Shim, D. H. Kim, W. Sohn, Y. Jung, S. Y. Lee, S. Choi, Y. H. Kim, J. M. Jeon, K. Hong, K. C. Kwon, S. Y. Park, C. Kim, J. H. Lee, C. Y. Kang, H. W. Jang, "Synergetically Selective Toluene Sensing in Hematite-Decorated Nickel Oxide Nanocorals", Adv. Mater. Technol., Vol. 2, No. 3, p. 1600259, 2017.   DOI
8 B. Y. Kim, J. W. Yoon, K. Lim, S. H. Park, J. W. Yoon, and J. H. Lee, "Hollow spheres of CoCr2O4-Cr2O3 mixed oxides with nanoscale heterojunctions for exclusive detection of indoor xylene", J. Mater. Chem. C, Vol. 6, No. 40, pp. 10767-10774, 2018.   DOI
9 H. J. Kim, K. I. Choi, A. Pan, I. D. Kim, H. R. Kim, K. M. Kim, C. W. Na, G. Cao, and J. H. Lee, "Template-free solvothermal synthesis of hollow hematite spheres and their applications in gas sensors and Li-ion Batteries", J. Mater. Chem., Vol. 21, No. 18, pp.6549-6555, 2011.   DOI
10 X. Zhou, J. Liu, C. Wang, P. Sun, X. Hu, X. Li, K. Shimanoe, N. Yamazoe, and G. Lu, "Highly sensitive acetone gas sensor based on porous ZnFe2O4 nanospheres", Sens. Actuator B-Chem., Vol. 206, pp. 577-583, 2015.   DOI
11 X. Y. Liu, H. W. Zheng, Y. Li, and W. F. Zhang, "Factors on the Separation of Photogenerated Charges and the Charge Dynamics in Oxide/ZnFe2O4 Composites", J. Mater. Chem. C, Vol. 1, pp.329-337, 2013.   DOI
12 Q. Ma, H. Li, Y. Liu, M. Liu, X. Fu, S. Chu, H. Li, and J. Guo, "Facile synthesis of flower-like α-Fe2O3/ZnFe2O4 architectures with self-assembled core-shell nanorods for superior TEA detection", Curr. Appl. Phys., Vol. 21, pp.161-169, 2021.   DOI
13 J. Ouyang, J. Pei, Q. Kuang, Z. Xie, and L. Zheng, "Supersaturation-controlled shape evolution of a-Fe2O3 nanocrystals and their facet- dependent catalytic and sensing properties", ACS Appl. Mater. Interfaces, Vol. 6, No. 15, pp. 12505-12514, 2014.   DOI
14 H. J. Kim and J. H. Lee, "Highly sensitive and selective gas sensors using p-type oxide semiconductors: Overview", Sens. Actuator B-Chem., Vol. 192, pp. 607-627, 2014.   DOI
15 C. Wang, T. Wang, B. Wang, X. Zhou, X. Cheng, P. Sun, J. Zheng, and G. Lu, "Design of a-Fe2O3 nanorods functionalized tubular NiO nanostructure for discriminating toluene molecule", Sci. Rep., Vol. 6, p. 26432, 2016.   DOI
16 W. Han, J. Deng, S. Xie, H. Yang, H. Dai, and C.T. Au, "Gold supported on iron oxide nanodisk as efficient catalyst for the removal of toluene", Ind. Eng. Chem. Res., Vol. 53, No. 9, pp. 3486-3494, 2014.   DOI
17 N. Yamazoe, "Toward innovations of gas sensor technology", Sens. Actuator B-Chem., Vol. 108, No. 1-2, pp. 2-14, 2005.   DOI
18 S. Y. Jeong, Y. M. Jo, Y. C. Kang, and J. H. Lee, "Xylene Sensor Using Cr-doped Co3O4 Nanoparticles Prepared by Flame Spray Pyrolysis", J. Sens. Sci. Technol., Vol. 29, No. 2, pp. 112-117, 2020.   DOI
19 Y. M. Jo, T. H. Kim, C. S. Lee, K. R. Lim, C. W. N, F Abdel-Hady, A. A. Wazzan, and J. H. Lee, "Metal-organic framework-derived hollow hierarchical Co3O4 nanocages with tunable size and morphology: ultrasensitive and highly selective detection of methylbenzenes", ACS Appl. Mater. Interfaces, Vol. 10, No. 10, pp. 8860-8868, 2018.   DOI
20 D. H. Kim, Y. S. Shim, and H. W. Jang, "Synthesis of Au-Decorated TiO2 Nanotubes on Patterned Substrates for Selective Gas Sensor", J. Sens. Sci. Technol, Vol. 23, No. 5, pp. 305-309, 2014.   DOI
21 H. J. Choi, J. H. Chung, J. W. Yoon, and J. H. Lee, "Highly selective, sensitive, and rapidly responding acetone sensor using ferroelectric ε-WO3 spheres doped with Nb for monitoring ketogenic diet efficiency", Sens. Actuator B-Chem., Vol. 338, p. 129823, 2021.   DOI
22 X. Chu., D. Jiang, G. Yu, and C. Zheng, "Ethanol gas sensor based on CoFe2O4 nano-crystallines prepared by hydrothermal method", Sens. Actuator B-Chem., Vol. 120, No. 1, pp. 177-181, 2006.   DOI