Promising methane gas sensor synthesized by microwave-assisted Co3O4 nanoparticles

Abstract The morphology and gas sensing characteristics of Co3O4 nanoparticles prepared using the microwave irradiation were investigated. XRD and TEM are used to analyze the structural and the morphological properties of the prepared nanoparticles. XRD results confirmed the formation of pure phase of these nanoparticles. The gas sensor based on the synthesis Co3O4 nanoparticles reveals faster response and recovery time at low temperature detection toward methane gas. Specifically, for methane concentration of 1%, the response and the recovery times at 200 °C are 100 s and 50 s, respectively. Furthermore, the sensing characteristics of Co3O4 nanoparticles were improved by increasing the operating temperatures and gas concentrations as well. The experimental results clearly demonstrate the potential use of Co3O4 nanoparticles as a sensing material in the fabrication of CH4 sensors.

[1]  K. Pourzare,et al.  Simple preparation of ferromagnetic Co3O4 nanoparticles by thermal dissociation of the [CoII(NH3)6](NO3)2 complex at low temperature , 2013, Journal of Nanostructure in Chemistry.

[2]  Junming Xu,et al.  Shape-regulated synthesis of cobalt oxide and its gas-sensing property , 2015 .

[3]  G. Sberveglieri,et al.  Plasma enhanced-CVD of undoped and fluorine-doped Co3O4 nanosystems for novel gas sensors , 2011 .

[4]  Jun Wang,et al.  The synthesis of porous Co3O4 micro cuboid structures by solvothermal approach and investigation of its gas sensing properties and catalytic activity , 2013 .

[5]  A. Henglein,et al.  Small-particle research: physicochemical properties of extremely small colloidal metal and semiconductor particles , 1989 .

[6]  Anders Hagfeldt,et al.  Light-Induced Redox Reactions in Nanocrystalline Systems , 1995 .

[7]  J. Bockheim,et al.  Origins of sulphate in Antarctic dry-valley soils as deduced from anomalous 17O compositions , 2000, Nature.

[8]  M. Rashad,et al.  CuO and Co 3 O 4 nanoparticles: synthesis, characterizations, and Raman spectroscopy , 2013 .

[9]  Guo-shun Jiang,et al.  Gas Sensing Properties of Co3O4-loaded SnO2 to Ethanol and Acetone , 2007 .

[10]  T. Becker,et al.  Gas-kinetic interactions of nitrous oxides with SnO2 surfaces , 1998 .

[11]  Li-ping Zhu,et al.  Mesoporous Co3O4 nanoneedle arrays for high-performance gas sensor , 2014 .

[12]  Thorsten Wagner,et al.  Nanostructured Co3O4 as a CO gas sensor: Temperature-dependent behavior , 2015 .

[13]  Synthesis of one-dimensional porous Co3O4 nanobelts and their ethanol gas sensing properties , 2014 .

[14]  L. Alexander,et al.  X-ray diffraction procedures , 1954 .

[15]  Toshio Itoh,et al.  NO and NO2 Sensing Properties of WO3 and Co3O4 Based Gas Sensors , 2013, Sensors.

[16]  U. Weimar,et al.  Understanding the fundamental principles of metal oxide based gas sensors; the example of CO sensing with SnO2 sensors in the presence of humidity , 2003 .

[17]  Nguyen Minh Hieu,et al.  Ni2O3 decoration of In2O3 nanostructures for catalytically enhanced methane sensing , 2014 .

[18]  L. Wan,et al.  Hierarchically structured cobalt oxide (Co3O4): the morphology control and its potential in sensors. , 2006, The journal of physical chemistry. B.

[19]  A. Ahmadpour,et al.  Synthesis and characterization of Cu doped cobalt oxide nanocrystals as methane gas sensors , 2011 .

[20]  Vijayanand Subramanian,et al.  Highly sensitive and fast responding CO sensor based on Co3O4 nanorods. , 2010, Talanta.

[21]  Noboru Yamazoe,et al.  Interactions of tin oxide surface with O2, H2O AND H2 , 1979 .

[22]  Tong Zhang,et al.  Ordered mesoporous Co3O4 for high-performance toluene sensing , 2014 .

[23]  I. Eisele,et al.  Cobalt oxide based gas sensors on silicon substrate for operation at low temperatures , 2003 .

[24]  N. Barsan,et al.  Fundamental and practical aspects in the design of nanoscaled SnO2 gas sensors: a status report , 1999 .

[25]  Xiaoping Shen,et al.  Solvothermal synthesis and gas-sensing performance of Co3O4 hollow nanospheres , 2009 .