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

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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
is covered by Science Citation Index Expanded (Clarivate Analytics), Scopus (Elsevier), and other databases.

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Sensors and Materials, Volume 28, Number 7 (2016)
Copyright(C) MYU K.K.
pp. 777-784
S&M1237 Research Paper
https://doi.org/10.18494/SAM.2016.1256
Published: July 27, 2016

Amperometric Nitrite-Ion Sensor Based on Electrodeposited Sm-Based Perovskite-Type Oxide Thick-Film Electrode [PDF]

Takahiro Yatsunami, Satoko Takase, and Youichi Shimizu

(Received September 30, 2015; Accepted March 7, 2016)

Keywords: perovskite-type oxide, nitrite-ion sensor, carbon-felt electrodes, amperometric, electrophoretic deposition

Perovskite-type oxide SmBO3 (B = Cr, Mn, Fe, Co) powders were prepared by a polymer precursor method at 750 ℃ and systematically investigated for electrochemical sensing properties for NO2 −. The SmBO3-modified carbon-felt electrodes could be prepared by an electrophoretic deposition (EPD) method without sintering. Among the oxide deposited electrodes, the SmFeO3 modified electrode showed the highest sensitivity to NO2 − with 11.9 mA M−1 cm−2 and a linear sensing range between 5.0 × 10−5 and 1.0 × 10−3 M at +0.85 V vs Ag / AgCl with high selectivity for NO2 − and no response to most other anions. A good correlation was observed between electrochemical activity toward nitrite-ion oxidation and oxygen adsorption properties of the oxides.

Corresponding author: Youichi Shimizu


Cite this article
Takahiro Yatsunami, Satoko Takase, and Youichi Shimizu, Amperometric Nitrite-Ion Sensor Based on Electrodeposited Sm-Based Perovskite-Type Oxide Thick-Film Electrode, Sens. Mater., Vol. 28, No. 7, 2016, p. 777-784.



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