2011
DOI: 10.1016/j.talanta.2011.09.051
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Novel CeO2-based screen-printed potentiometric electrodes for pH monitoring

Abstract: Nuclear waste repositories are being installed in deep excavated rock formations in some places in Europe to isolate and store radioactive waste. In France, the Callovo-Oxfordian formation (COx) is a possible candidate for nuclear waste storage. This work investigates the applicability of CeO 2 -based oxides (CeO 2 , Ce 0.8 Sm 0.2 O 2 and Ce 0.8 Zr 0.2 O 2 ) for monitoring the pH of the COx pore water. The study is limited to the pH range between 5.5 and 13.2, which includes the pH values that have been encoun… Show more

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Cited by 26 publications
(11 citation statements)
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“…A number of research avenues have been explored to counter these issues and both potentiometric [31][32][33][34][35][36][37][38][39][40][41][42][43][44] and voltammetric [ 16-20 , 45-51 ] methodologies have been pursued. In most cases, a functional material containing pH sensitive components is applied to the surface of an appropriate sensor substrate through a variety of methods that include: Adsorption/monolayer, [ 39,48 ] polymer fi lms, [ 36 ] screen printed inks, [ 35,38,40,47 ] covalent attachment, [ 46,47 ] or electrodeposition. [ 32,33,37,[42][43][44]50 ] Screen printed electrochemical sensors have been designed specifi cally for wound pH monitoring applications and shown to be a versatile addition.…”
Section: Research Newsmentioning
confidence: 99%
“…A number of research avenues have been explored to counter these issues and both potentiometric [31][32][33][34][35][36][37][38][39][40][41][42][43][44] and voltammetric [ 16-20 , 45-51 ] methodologies have been pursued. In most cases, a functional material containing pH sensitive components is applied to the surface of an appropriate sensor substrate through a variety of methods that include: Adsorption/monolayer, [ 39,48 ] polymer fi lms, [ 36 ] screen printed inks, [ 35,38,40,47 ] covalent attachment, [ 46,47 ] or electrodeposition. [ 32,33,37,[42][43][44]50 ] Screen printed electrochemical sensors have been designed specifi cally for wound pH monitoring applications and shown to be a versatile addition.…”
Section: Research Newsmentioning
confidence: 99%
“…Our antimony-based SPEs show a near-Nernstian response (an average of −53.6 mV/pH) and thus appear to be suitable electrodes for accurate pH measurements. As pH sensors, the performance level of Sb-based screen-printed electrodes can be compared to that obtained with CeO 2 -based [38] or RuO 2 -based [32] SPEs.…”
Section: Resultsmentioning
confidence: 99%
“…At the same time, experiments were also conducted on antimony-based screen-printed electrodes (SPEs). The reliability of SPEs has already been demonstrated for various applications in earlier papers: semi-continuous monitoring of trace metals [34], and the development of screen-printed pH electrodes based on ruthenium dioxide [32,35], cobalt oxide [36], phenanthraquinone [37] and, more recently, cerium-oxide [38]. Moreover, screen-printing is a simple and fast method for the large-scale production of reproducible low-cost sensors, which allows quick generation of reliable data [39,40].…”
Section: Methodsmentioning
confidence: 99%
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“…Betelu et al , investigated the applicability of CeO 2 -based screen printed electrodes for monitoring the pH of the COx pore water. However, this study was limited to the pH range between 5.5 and 13.2 [50]. Xiong et al designed a calibration-less sensor based on nitrosophenyl-modified edge plane pyrolytic electrodes and screen printed electrodes to monitor pH changes [51].…”
Section: Screen Printed Sensors For Environmental Monitoringmentioning
confidence: 99%