Abstract
Humidity and temperature sensors were fabricated from a nanocomposite consisting of CeO2-Co3O4 hybrid nanoparticle-silicone adhesive and CeO2-Co3O4 hybrid nanoparticle-polymer adhesive, respectively, to fix the material on a glass supported copper electrode. The impedance of the sensor decreases by a factor of 960 at a working frequency of 100 Hz, and by a factor of 800 at 1 kHz, on increasing relative humidity (RH) from 30 to 90 %. In parallel, the capacitances increase by factors of 567 and 355, respectively, under the same experimental conditions. The effect of temperature in the range from 25 to 70 °C on impedance (again at 100 Hz and 1 kHz) was also studied and found to decrease with increasing temperature. On going from 25 to 70 °C, the impedance measured at 100 Hz and 1 kHz decreases 2.22 and 1.58 times, respectively, in surface type sensors, while in sandwich type sensors this decrease is 3.0 and 2.08 times. The calculated average sensitivity to temperature is −1.02 and −0.8 % °C−1 for the surface type and −1.5 and −1.2 % °C−1 for the sandwich type sensors at frequencies of 100 Hz and 1 kHz, respectively.
Similar content being viewed by others
References
Chani MTS, Karimov KS, Khalid FA, Moiz SA (2013) Polyaniline based impedance humidity sensors. Solid State Sci 18:78–82
Chani MTS, Karimov KS, Khan SB, Asiri AM, Saleem M, Bashir MM (2013) Fe2O3–silicone adhesive composite based humidity sensors. Optoelectron Adv Mater Rapid Commun 7:861–865
Fuke MV, Kanitkar P, Kulkarni M, Kale B, Aiyer R (2010) Effect of particle size variation of Ag nanoparticles in polyaniline composite on humidity sensing. Talanta 81:320–326
Chani MTS, Karimov KS, Khalid FA, Abbas SZ, Bhatty MB (2013) Orange dye-polyaniline composite based impedance humidity sensors. Chin Phys B 22:10701–010701
Huang JR, Li MQ (2007) A novel conductive humidity sensor based on field ionization from carbon nanotubes. Sensors Actuators A 133:467–471
Nohria R, Khillan RK, Su Y, Dikshit R, Lvov Y, Varahramyan K (2006) Humidity sensor based on ultrathin polyaniline film deposited using layer-by-layer nano-assembly. Sens Actuators B 114:218–222
Khan SB, Chani MTS, Karimov KS, Asiri AM, Mehran B, Rana T (2014) Humidity and temperature sensing properties of copper oxide–Si-adhesive nanocomposite. Talanta 120:443–449
Boylestad RL (2010) Introductory circuit analysis 12th ed (Prentice Hall)
Dally JW, Riley W, McConnell KG (1993) Instrumentation for engineering measurements. Wiley, New York
Omar MA (2002) Elementary solid state physics: principles and applications. Pearson Education (Singapore) Pt. Ltd., Indian branch, Delhi
Faisal M, Khan SB, Rahman MM, Jamal A, Asiri AM, Abdullah MM (2011) Smart chemical sensor and active photo-catalyst for environmental pollutants. Chem Eng J 173:178–184
Jamal A, Rahman MM, Khan SB, Faisal M, Akhtar K, Rub MA et al (2012) Cobalt doped antimony oxide nano-particles based chemical sensor and photo-catalyst for environmental pollutants. Appl Surf Sci 261:52–58
Khan SB, Rahman MM, Asiri AM, Marwani HM, Bawaked SM, Alamry KA (2013) Co3O4 co-doped TiO2 nanoparticles as a selective marker of lead in aqueous solution. New J Chem 37:2888–2893
de Lacy Costello BPJ, Ewen RJ, Ratcliffe NM, Sivanand PS (2003) Thick film organic vapour sensors based on binary mixtures of metal oxides. Sensors Actuators B 92:159–166
Yue X-J, Hong T-S, Xu X, Li Z (2011) High-performance humidity sensors based on double-layer ZnO-TiO 2 nanofibers via electrospinning. Chin Phys Lett 28:090701
Srivastava R, Yadav BC (2012) Nanaostructured ZnO, ZnO-TiO2 and ZnO-Nb2O5 as solid state humidity sensor. Adv Mater Lett 3:197–203
Nagaraju SC, Roy AS, Kumar JBP, Anilkumar KR, Ramagopal G (2014) Humidity sensing properties of surface modified polyaniline metal oxide composites. J Eng 2014:8
Khan SB, Faisal M, Rahman MM, Jamal A (2011) Exploration of CeO2 nanoparticles as a chemi-sensor and photo-catalyst for environmental applications. Sci Total Environ 409:2987–2992
Wang Y, Zhou T, Jiang K, Da P, Peng Z, Tang J et al (2014) Reduced mesoporous Co3O4 nanowires as efficient water oxidation electrocatalysts and supercapacitor electrodes. Adv Energy Mater 4:1400696
Ma TY, Dai S, Jaroniec M, Qiao SZ (2014) Synthesis of highly active and stable spinel-type oxygen evolution electrocatalysts by a rapid inorganic self-templating method. Chem Eur J 20:12669–12676
Asif SAB, Khan SB, Asiri AM (2014) Efficient solar photocatalyst based on cobalt oxide/iron oxide composite nanofibers for the detoxification of organic pollutants. Nanoscale Res Lett 9:510
Fu XQ, Wang C, Yu HC, Wang YG, Wang TH (2007) Fast humidity sensors based on CeO 2 nanowires. Nanotechnology 18:145503
Khadse VR, Thakur S, Patil KR, Patil P (2014) Humidity-sensing studies of cerium oxide nanoparticles synthesized by non-isothermal precipitation. Sens Actuators B 203:229–238
Zuwei Z, Chenguo H, Yufeng X, Rusen Y, Zhong Lin W (2007) Synthesis of Ba-doped CeO 2 nanowires and their application as humidity sensors. Nanotechnology 18:465504
Chani MTS, Asiri AM, Karimov KS, Niaz AK, Khan SB, Alamry KA (2013) Aluminium phthalocyanine chloride thin films for temperature sensing. Chin Phys B 22:118101–118105
Boguslavsky SN, Vannikov VV (1968) Organic semiconductors. V.A. Kargin, Nauka, Moscow
Neamen DA (1992) Semiconductor physics and devices: basic principles. Irwin, Boston
Malley JO (1992) Theory and problems of basic circuit analysis, 2nd edn. McGraw-Hill, New York
Bottger H, Bryksin VV (1985) Hopping conduction in solids. VCH, Deerfield Beach
Brabec C, Dyakonov JPaNS V (2003) Organic photovoltaics: concepts and realization. Springer, (Berlin
Steele JJ, Taschuk MT, Brett MJ (2008) Nanostructured metal oxide thin films for humidity sensors. IEEE Sens J 8:1422–1429
Varghese OK, Grimes CA (2003) Metal oxide nanoarchitectures for environmental sensing. J Nanosci Nanotechnol 3:277–293
Wang L, Deng J, Lou Z, Zhang T (2014) Cross-linked p-type Co3O4 octahedral nanoparticles in 1D n-type TiO2 nanofibers for high-performance sensing devices. J Mater Chem A 2:10022–10028
Yadav BC, Yadav RC, Singh S, Dwivedi PK, Ryu H, Kang S (2013) Nanostructured cobalt oxide and cobalt titanate thin films as optical humidity sensor: a new approach. Opt Laser Technol 49:68–74
Zhang C, Sadek AZ, Breedon M, Ippolito SJ, Wlodarski W, Truman T, et al (2008) Conductometric sensor based on nanostructured titanium oxide thin film deposited on polyimide substrate with dissimilar metallic electrodes. Nanoscience and Nanotechnology, 2008. ICONN 2008. International Conference on. p. 94–96
Acknowledgments
This project was funded by the Center of Excellence for Advanced Materials Research (CEAMR), King Abdulaziz University, Jeddah, under grant no. (CEAMR-SG-2-436).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Khan, S.B., Karimov, K.S., Chani, M.T.S. et al. Impedimetric sensing of humidity and temperature using CeO2–Co3O4 nanoparticles in polymer hosts. Microchim Acta 182, 2019–2026 (2015). https://doi.org/10.1007/s00604-015-1529-1
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00604-015-1529-1