Platinum screen printed electrodes for the electroanalytical sensing of hydrazine and hydrogen peroxide

Metters, Jonathan P.; Tan, F.D.; Kadara, Rashid O.; Banks, Craig E.

doi:10.1039/c2ay05934g

Cited by 41 publications

(28 citation statements)

References 71 publications

(63 reference statements)

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“…The linear detection range is estimated to be from 5 to 900 μM (r=0.999), and the detection limit is estimated to be 0.08 μΜ at a signal-to-noise ratio of 3. Note that our present sensing system gives lower detection limit than that of platinum screen-printed electrodes (0.12 μM) [42], AuNPs on thiolated single-stranded DNA-modified Au electrode (0.56 μM) [43], and hybrid nickel hexacyanoferratefunctionalized multiwalled carbon nanotube/GCE [44].…”

Section: Determination Of Glucose At God/aunps/rgo/gcementioning

confidence: 99%

One-pot synthesis of Au nanoparticles/reduced graphene oxide nanocomposites and their application for electrochemical H2O2, glucose, and hydrazine sensing

Qin

Asiri

et al. 2013

Gold Bull

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In this paper, Au nanoparticles/reduced graphene oxide (AuNPs/rGO) nanocomposites were prepared through a one-pot strategy, carried out by heating the mixture of HAuCl 4 and graphene oxide solution at 90°C under alkaline condition. The resultant AuNPs/rGO nanocomposites were found to exhibit good catalytic performance toward H 2 O 2 reduction and oxidation as well as hydrazine oxidation. The electrochemical sensing application of the nanocomposites for H 2 O 2 , glucose, and hydrazine was also demonstrated successfully.

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Section: Determination Of Glucose At God/aunps/rgo/gcementioning

confidence: 99%

One-pot synthesis of Au nanoparticles/reduced graphene oxide nanocomposites and their application for electrochemical H2O2, glucose, and hydrazine sensing

Qin

Asiri

et al. 2013

Gold Bull

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“…17,18 However, it is often a key impurity in pharmaceutical products, and its high toxicity has led to the development of (electrochemical) hydrazine sensors. [19][20][21] Voltammetric and amperometric hydrazine analysis is usually performed in air and the role of oxygen in hydrazine detection is rarely taken into account. 22 This is an important consideration, because hydrazine can (catalytically) reduce oxygen on various surfaces, a process that is exploited for corrosion protection.…”

Section: Introductionmentioning

confidence: 99%

Voltammetric Scanning Electrochemical Cell Microscopy: Dynamic Imaging of Hydrazine Electro-oxidation on Platinum Electrodes

et al. 2015

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(2015) Voltammetric scanning electrochemical cell microscopy : dynamic imaging of hydrazine electro-oxidation on platinum electrodes. Analytical Chemistry Permanent WRAP url: http://wrap.warwick.ac.uk/67791 Copyright and reuse:The Warwick Research Archive Portal (WRAP) makes this work of researchers of the University of Warwick available open access under the following conditions. Copyright © and all moral rights to the version of the paper presented here belong to the individual author(s) and/or other copyright owners. To the extent reasonable and practicable the material made available in WRAP has been checked for eligibility before being made available.Copies of full items can be used for personal research or study, educational, or not-forprofit purposes without prior permission or charge. Provided that the authors, title and full bibliographic details are credited, a hyperlink and/or URL is given for the original metadata page and the content is not changed in any way. Publisher's statement:This document is the Accepted Manuscript version of a Published Work that appeared in final form in Analytical Chemistry copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see link to Published Work, http://pubs.acs.org/page/policy/articlesonrequest/index.html]The version presented here may differ from the published version or, version of record, if you wish to cite this item you are advised to consult the publisher's version. Please see the 'permanent WRAP url' above for details on accessing the published version and note that access may require a subscription. Abstract:Voltammetric scanning electrochemical cell microscopy (SECCM) incorporates cyclic voltammetry measurements in the SECCM imaging protocol, by recording electrochemical currents in a wide potential window at each pixel in a map. This provides much more information compared to traditional fixed potential imaging. Data can be represented as movies (hundreds of frames) of current (over a surface region) at a series of potentials and are highly revealing of subtle variations in electrode activity. Furthermore, by combining SECCM data with other forms of microscopy, e.g. scanning electron microscopy and electron backscatter diffraction data, it is possible to directly relate the current-voltage characteristics to spatial position and surface structure. In this work we use a 'hopping mode', where the SECCM pipet probe is translated towards the surface at a series of positions until meniscus contact. Small amounts of residue left on the surface, upon probe retraction, demark the precise area of each measurement. We use these techniques to study hydrazine oxidation on a polycrystalline platinum substrate in air and in a deaerated environment. In both cases, the detected faradaic current shows a structural dependence on the surface crystallographic orientation. Significantly, in the presence of oxygen (aerated solution) the electrochemical current decreases strongly for alm...

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“…[4] Carbon-based SPEs usually perform well in aqueous solvents and show similar electrode kinetics to those observed on conventional disk-electrodes. [4,5,6] Gold [7,8] and platinum [9,10] SPEs have also been used, but much more rarely. Moving away from experiments in aqueous-based solvents, we recently found that the background currents of DropSens carbon SPEs are very large compared to Pt and Au SPEs when room temperature ionic liquid (RTIL) solvents are employed.…”

Section: Introductionmentioning

confidence: 99%

Oxygen reduction voltammetry on platinum macrodisk and screen-printed electrodes in ionic liquids: Reaction of the electrogenerated superoxide species with compounds used in the paste of Pt screen-printed electrodes?

Lee

Murugappan

Arrigan

et al. 2013

Electrochimica Acta

103

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Screen-printed electrodes (SPEs) are widely investigated as simple, three-electrode planar surfaces for electrochemical sensing applications, and may be ideal for gas sensing purposes when combined with non-volatile room temperature ionic liquids (RTILs). In this report the suitability of SPEs with RTIL solvents has been investigated for oxygen detection. Oxygen reduction has been studied on commercially available platinum SPEs in eight RTILs. Cyclic voltammetric wave shapes were found to be significantly different on Pt SPE surfaces compared to conventional solid Pt macroelectrodes, suggesting a possible reaction of the electrogenerated superoxide with the compounds that make up the ink/paste of the SPE surface. The only RTIL that did not show such drastically different voltammetry was one that contained a pyrrolidinium cation, suggesting a more chemically stable solvent environment compared to the other imidazolium and phosphonium cations studied. The analytical utility was then studied on four SPE surfaces (carbon, gold, platinum and silver) in two RTILs (one with a pyrrolidinium and one with an imidazolium cation) and linear responses were observed between current and % concentration in the range 10-100 % O 2 . This suggests that SPEs may indeed be suitable for oxygen sensing in some RTILs, but significantly more pre-treatment of the surface is required to obtain reliable results. However, the reaction of superoxide with the SPE ink, together with a noticeable deterioration of the signal over time, suggests that this type of sensing platform may only be suitable for "single-use" oxygen sensing applications.

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Platinum screen printed electrodes for the electroanalytical sensing of hydrazine and hydrogen peroxide

Cited by 41 publications

References 71 publications

One-pot synthesis of Au nanoparticles/reduced graphene oxide nanocomposites and their application for electrochemical H2O2, glucose, and hydrazine sensing

One-pot synthesis of Au nanoparticles/reduced graphene oxide nanocomposites and their application for electrochemical H2O2, glucose, and hydrazine sensing

Voltammetric Scanning Electrochemical Cell Microscopy: Dynamic Imaging of Hydrazine Electro-oxidation on Platinum Electrodes

Oxygen reduction voltammetry on platinum macrodisk and screen-printed electrodes in ionic liquids: Reaction of the electrogenerated superoxide species with compounds used in the paste of Pt screen-printed electrodes?

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