JOURNAL BROWSE
Search
Advanced SearchSearch Tips
A Volatile Organic Compound Sensor Using Porous Co3O4 Spheres
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
A Volatile Organic Compound Sensor Using Porous Co3O4 Spheres
Kim, Tae-Hyung; Yoon, Ji-Wook; Lee, Jong-Heun;
  PDF(new window)
 Abstract
Porous spheres with bimodal pore distribution (size: 2-3 nm and ~ 30 nm) were prepared by ultrasonic spray pyrolysis of aqueous droplets containing Co-acetate and polyethylene glycol (PEG), while dense secondary particles with monomodal pore distribution (size: 2-3 nm) were prepared from the spray solution without PEG. The formation of mesopores (~ 30 nm) was attributed to the decomposition of PEG. The responses of a porous sensor to various indoor air pollutants such as 5 ppm , xylene, toluene, benzene, and HCHO at were found to be significantly higher than those of a commercial sensor using and dense secondary particles. Enhanced gas response of porous sensor was attributed to high surface area and the effective diffusion of analyte gas through mesopores (~ 30 nm). Highly sensitive porous sensor can be used to monitor various indoor air pollutants.
 Keywords
Gas sensor;;Volatile organic compound;Spray pyrolysis;
 Language
English
 Cited by
1.
Mesoporous cobalto-cobaltic oxide modified glassy carbon electrode for simultaneous detection of hydroquinone and catechol, Journal of Electroanalytical Chemistry, 2016, 782, 225  crossref(new windwow)
 References
1.
N. Yamazoe, "Toward Innovations of Gas Sensor Technology," Sensor. Actuator. B Chem., 108 2-14 (2005). crossref(new window)

2.
D. D. Vuong, G. Sakai, K. Shimanoe, and N. Yamazoe, "Highly Sensitive and Selective Gas Sensors Using Catalyst-Loaded $SnO_2$ Nanowires," J. Sensor Sci. & Tech., 21 [3] 167-71 (2012). crossref(new window)

3.
K.-M. Kim, H.-R. Kim, K.-I. Choi, H.-J. Kim, and J.-H. Lee, "ZnO Hierarchical Nanostructures Grown at Room Temperature and their $C_2H_5$OH Sensor Applications," Sensor. Actuator. B Chem., 155 745-51 (2011). crossref(new window)

4.
K.-I. Choi, H.-R. Kim, and J.-H. Lee, "Enhanced CO Sensing Characteristics of Hierarchical and Hollow $In_2O_3$ Microspheres," Sensor. Actuator. B Chem., 138 497-503 (2009). crossref(new window)

5.
A. M. Ruiz, G. Sakai, A. Cornet, K. Shimanoe, and J. R. Morante, "Cr-doped $TiO_2$ Gas Sensor for Exhaust $NO_2$ Monitoring," Sensor. Actuator. B Chem., 93 509-18 (2003). crossref(new window)

6.
N. Barsan, C. Simion, T. Heine, and S. Pokhrel, "Modeling of Sensing and Transduction for P-type Semiconducting Metal Oxide Based Gas Sensors," J. Electroceram., 25 11-9 (2010). crossref(new window)

7.
N. G. Cho, H.-S. Woo, J.-H. Lee, and I.-D. Kim, "Thin-Walled NiO Tube Networks Functionalized with Catalytic Pt for Highly Selective $C_2H_5$OH Sensors Using Electrospun Fibers as a Sacrificial Template," Chem. Commun., 47 11300-2 (2011). crossref(new window)

8.
Y.-S. Kim, I.-S. Hwang, S.-J. Kim, C.-Y. Lee, and J.-H. Lee, "CuO Nanowire Gas Sensors for Air Quality Control in Automotive Cabin," Sensor. Actuator. B Chem., 135 298-303 (2008). crossref(new window)

9.
J.-W. Yoon, H.-J. Kim, H.-M. Jeong, and J.-H. Lee, "Gas Sensing Characteristics of P-type $Cr_2O_3$ and $Co_3O_4$ Nanofibers Depending on Inter-Particle Connectivity," Sensor. Actuator. B Chem., 202 261-71 (2014).

10.
K.-I. Choi, H.-R. Kim, K.-M. Kim, D. Liu, G. Cao, and J.-H. Lee, "$C_2H_5OH$ Sensing Characteristics of Various $Co_3O_4$ Nanostructures Prepared by Solvothermal Reaction," Sens. Actuators B, 143 183-89 (2010).

11.
H.-J. Kim and J.-H. Lee, "Highly Sensitive and Selective Gas Sensors Using P-type Oxide Semiconductors: Overview," Sens. Actuators B, 192 607-27 (2014). crossref(new window)

12.
I.-S. Hwang, S.-J. Kim, J.-K. Choi, J.-J. Jung, D. J. Yoo, K.-Y. Dong, B.-K. Ju, and J.-H. Lee, "Large Scale Fabrication of Highly Sensitive $SnO_2$ Nanowire Network Gas Sensors by Single Step Vapor Phase Growth," Sensor. Actuator. B Chem., 165 97-103 (2012). crossref(new window)

13.
J.-H. Lee, "Gas Sensors Using Hierarchical and Hollow Oxide Nanostructures: Overview," Sensor. Actuator. B Chem., 140 319-36 (2009). crossref(new window)

14.
M. Yu, J. Lin, Z. Wang, J. Fu, S. Wang, H. J. Zhang, and Y. C. Han, "Fabrication, Patterning, and Optical Properties of Nanocrystalline $YVO_4$:A (A=$Eu^{3+}$, $Dy^{3+}$, $Sm^{3+}$, $Er^{3+}$) Phosphor Films via Sol-Gel Soft Lithography," Chem. Mater., 14 2224-31 (2002). crossref(new window)

15.
T. Hyodo, Y. Shimizu, and M. Egashira "Gas-Sensing Properties of Ordered Mesoporous $SnO_2$ and Effects of Coating Thereof," Sens. Actuators B, 93 590-600 (2003). crossref(new window)

16.
G. Sakai, N. Matsunaga, K. Shimanoe, and N. Yamazoe, "Theory of Gas-Diffusion Controlled Sensitivity for Thin Film Semiconductor Gas Sensor," Sensor. Actuator. B Chem., 93 125-31 (2003).

17.
H. J. Wu, L. D. Wang, Z. Y. Shen, and J. H. Zhao, "Catalytic Oxidation of Toluene and P-xylene Using Gold Supported on $Co_3O_4$ Catalyst Prepared by Colloidal Pre-Cipitation Method," J. Mol. Catal. Chem., 351 188-95 (2011). crossref(new window)

18.
Q. Yan, X. Li, Q. Zhao, and G. Chen, "Shape-Controlled Fabrication of the Porous $Co_3O_4$ Nanoflower Clusters for Efficient Catalytic Oxidation of Gaseous Toluene," J. Hazard. Mater., 209-210 385-91 (2012). crossref(new window)

19.
H.-M. Jeong, H.-J. Kim, P. Rai, J.-W. Yoon, and J.-H. Lee, "Cr-doped $Co_3O_4$ Nanorods as Chemiresistor for Ultraselective Monitoring of Methyl Benzene," Sensor. Actuator. B Chem., 201 482-89 (2014). crossref(new window)