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Notice of retraction
Vol. 34, No. 8(3), S&M3042

Notice of retraction
Vol. 32, No. 8(2), S&M2292

Print: ISSN 0914-4935
Online: ISSN 2435-0869
Sensors and Materials
is an international peer-reviewed open access journal to provide a forum for researchers working in multidisciplinary fields of sensing technology.
Sensors and Materials
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Sensors and Materials, Volume 31, Number 4(3) (2019)
Copyright(C) MYU K.K.
pp. 1351-1356
S&M1861 Research Paper
https://doi.org/10.18494/SAM.2019.2291
Published: April 30, 2019

Sensor Properties of Series-connected Mixed-potential H2 Gas Sensor [PDF]

Takafumi Akamatsu, Toshio Itoh, and Yoshitake Masuda

(Received January 11, 2019; Accepted April 3, 2019)

Keywords: mixed-potential gas sensor, hydrogen, phosphate glass, benzimidazole, sensor array

Mixed-potential gas sensors with an anhydrous electrolyte consisting of zinc metaphosphate glass and benzimidazole were fabricated for the detection of hydrogen. Using a combination of similar sensor units connected in series, a strategy for measuring sub-ppm-level hydrogen has been demonstrated. The sensor unit consisted of an electrolyte membrane and an alumina substrate with platinum and gold electrodes. A sensor array with 7 sensors connected in series showed a response to the H2 gas, even at 1 ppm. The sensitivities of the single sensor and 7-sensor array were −0.57 and −3.54 mV/ppm, respectively. By connecting sensors in series, the sensor response and sensitivity were improved.

Corresponding author: Takafumi Akamatsu


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Cite this article
Takafumi Akamatsu, Toshio Itoh, and Yoshitake Masuda, Sensor Properties of Series-connected Mixed-potential H2 Gas Sensor, Sens. Mater., Vol. 31, No. 4, 2019, p. 1351-1356.



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