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Progress in Solution-Processed Mixed Oxides Read chapter Read first chapter

2021 | OriginalPaper | Chapter

29. Low-Temperature Processed Metal Oxides and Ion-Exchanging Surfaces as pH Sensor

Authors : Cyril Oluchukwu Ugwuoke, Philips Chidubem Tagbo, Onyeka Stanislaus Okwundu, Chukwujekwu Augustine Okaro, Sabastine Ezugwu, Fabian I. Ezema

Published in: Chemically Deposited Nanocrystalline Metal Oxide Thin Films

Publisher: Springer International Publishing

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Abstract

Precise pH measurement is crucial in the assessment of various physical, chemical, and biological processes. While the common glass electrode is known for its exceptional pH sensing performance, it has limited applicability. As a result, H+ sensitive MOx, which can be made into miniature physically rugged sleeves, applicable in vivo, in harsh environments, and even in cases where the volume of the sample solution is highly restricted (such as sensing of exuding sweat), are gaining attention as pH sensors. In this chapter, we present the principal mode of operation of electrochemical pH sensors and the detailed mechanism of sensing with MOx. We also considered various fabrication methods for MOx sensing electrodes (SEs). Lastly, after describing several pH sensor performance measures, the practical performances of some MOx SEs were reviewed. In all, this chapter is meant to provide an insight into pH sensing using MOx-based electrodes.

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previous chapter Chemically Synthesized Novel Materials for Gas-Sensing Applications Based on Metal Oxide Nanostructure
next chapter Performance Evaluation of P-Type Semiconducting Metal Oxide-Based Gas Sensors
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Metadata
Title
Low-Temperature Processed Metal Oxides and Ion-Exchanging Surfaces as pH Sensor
Authors
Cyril Oluchukwu Ugwuoke
Philips Chidubem Tagbo
Onyeka Stanislaus Okwundu
Chukwujekwu Augustine Okaro
Sabastine Ezugwu
Fabian I. Ezema
Copyright Year
2021
Book
Chemically Deposited Nanocrystalline Metal Oxide Thin Films

Print ISBN: 978-3-030-68461-7

Electronic ISBN: 978-3-030-68462-4

Copyright Year: 2021

DOI
https://doi.org/10.1007/978-3-030-68462-4_29

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