Abstract
A solid electrolyte potentiometric CO2 gas sensor has been considered as a candidate for miniaturization into a micro-sensor form. However, the solid electrolyte potentiometric CO2 gas sensor is composed of three components: a reference, a sensing material, and a solid electrolyte. This study reports the fabrication of a solid electrolyte potentiometric CO2 gas sensor with a native reference material from the solid electrolyte (Li3PO4), which means one component of the sensor can be omitted and the fabrication process can be simplified compared to the process for a conventional solid electrolyte potentiometric CO2 gas sensor. The sensor containing Li3PO4, which acted as the reference material as well as the sensing material, showed a comparable response (75 mV/dec at 500 °C) to CO2 gas when we compared the sensor with a conventional solid electrolyte CO2 gas sensor (73 mV/dec at 500 °C) with a coplanar configuration containing Li2TiO3 as the reference material and Li3PO4 as the solid electrolyte.
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References
R. A. Potyrailo, C. Surman, N. Nagraj and A. Burns, Chem. Rev. 111, 7315 (2011).
J. Zhang, C. D. Wu, Y. Z. Zhang and P. Ji, ETRI J. 33, 857 (2011).
H.-K. Lee, W. Yang, N.-J. Choi and S. Moon, ETRI J., dx.doi.org/10.4218/etrij.12.0112.0266.
G. Müller, A. Friedberger, P. Kreisl, S. Ahlers, O. Schulz and T. Becker, Thin Solid Films 436, 34 (2003).
H.-K. Lee, S. Moon, N.-J. Choi, W. Yang and J. Kim, J. Korean Phys. Soc. 60, 225 (2012).
J. F. Currie, A. Essalik and J. C. Marusic, Sens. Actuators, B 59, 235 (1999).
Y. I. Bang, K. D. Song, B. S. Joo, J. S. Huh, S. D. Choi and D. D. Lee, Sens. Actuators, B 102, 20 (2004).
J. Maier, M. Holzinger and W. Sitte, Solid State Ionics 74, 5 (1994).
D.-H. Kim, J.-Y. Yoon, H.-C. Park and K.-H. Kim, Sens. Actuators, B 76, 594 (2001).
Y. C. Zhang, H. Tagawa, S. Asakura, J. Mizusaki and H. Narita, J. Electrochem. Soc. 144, 4345 (1997).
L. Satyanarayana, W. S. Noh, W. Y. Lee, G. H. Jin and J. S. Park, J. Korean Phys. Soc. 50, L937 (2007).
P. Pasierb and M. Rekas, J. Solid State Electrochem. 13, 3 (2009).
W. Y. Lee, Y. K. Choi, L. Satyanarayana and J. S. Park, J. Nanosci. Nanotechnol. 7, 4154 (2007).
C. O. Park, J.W. Fergus, N. Miura, J. Park and A. Choi, Ionics 15, 261 (2009).
C. O. Park, S. A. Akbar and W. Weppner, J. Mater. Sci. 38, 4639 (2003).
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Lee, HK., Choi, NJ., Moon, S.E. et al. A solid electrolyte potentiometric CO2 gas sensor composed of lithium phosphate as both the reference and the solid electrolyte materials. Journal of the Korean Physical Society 61, 938–941 (2012). https://doi.org/10.3938/jkps.61.938
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DOI: https://doi.org/10.3938/jkps.61.938