The oxidation of hydrazine at a nickel anode in alkaline solution

Fleischmann, M.; Kořínek, K.; Pletcher, Derek

doi:10.1016/s0022-0728(72)80425-x

Cited by 67 publications

(37 citation statements)

References 8 publications

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“…The study of nickel based complexes for sensory exploration has gained increasing attention recently. Reports revealed that by homogeneous or heterogeneous approaches, nickel metal, inorganic nickel compounds, nickel(II)-chelating complexes, nickel-centered polymers, and nickel embedded composites exhibited promising analytical signals for amino acids [32][33][34], carbohydrates [35,36], alcohols [37], pharmaceutical products [38,39], neurotransmitters [40,41], bisphenol A [42], hydrogen peroxide [43], hydrazine [44], sulfur-containg compound [45][46][47][48]. Despite of these development, there has been no published data on the direct DNA analysis on the nickel based detector except our earlier preliminary presentation [49].…”

Section: Resultsmentioning

confidence: 99%

Novel Chromosomal DNA Assay Based on Nickel Hydroxide Nanocomposite Films with Facile Construction

Jiang

Villagomez

et al. 2010

Electroanalysis

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We present a new protocol for DNA assay under ambient, routine operation. The novelty of the proposed approach is the direct analysis, meaning there is no need for derivatization or other pretreatments which are usually coupled with conventional bio or biochemical assay. The proposed method is based on our new preparation of a nanocomposite thin film composed of nickel hydroxides. Fabrication of the sensing film is facile, in situ, and thickness-controllable, and combines the metal deposition and the subsequent stripping/formation. The film construction and the novel sensing events were thorough examined and characterized by various techniques. Although the responding sensitivities vary among nucleic acids, the sensing mechanism was found to be attributed to the Ni(III/II) moieties within the film. In alkaline media the electrogenerated higher valent Ni(III) would oxidize DNA at around the redox potential of Ni(III/II). This electrocatalytic oxidation thus accounts for the much enhanced voltammetric current and for the much reduced overpotentials of these analytes at unmodified electrodes. The advantage of this protocol stemmed from the utilization of the same medium for both sensor fabrication and subsequent exploration that preserve and maximize the catalytic capacity. In addition to chromosomal DNAs, denatured DNA, single stranded DNA, and synthetic oligomers can all be determined by the proposed protocol with negligible interference. The present work offers a fast, ergonomic, and cost-effective alternative to the existing DNA assay arena.

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Section: Resultsmentioning

confidence: 99%

Novel Chromosomal DNA Assay Based on Nickel Hydroxide Nanocomposite Films with Facile Construction

Jiang

Villagomez

et al. 2010

Electroanalysis

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“…Hydrazine was suggested as a possible fuel in fuel cells and hence the oxidation of this compound has been studied, for developing analytical methods for its determination under a wide range of conditions using electrodes such as mercury [20], silver and gold [21], platinum [22] and nickel [23]. Transition metal complexes such as iron and cobalt phthalocyanins [24,25] and cobalt protoporphyrin [26] modi®ed electrodes have also been used for the electrocatalytic oxidation of hydrazine.…”

Section: Resultsmentioning

confidence: 99%

A Comparative Study of the Electrocatalytic Activities of Some Metal Hexacyanoferrates for the Oxidation of Hydrazine

1999

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The electrocatalytic properties of electrodes modi®ed with metal [Cr(III), Mn(II), Fe(II), Co(II), Ni(II), Cu(II), Zn(II), Ag(I), Cd(II) and In(III)] hexacyanoferrates(II) were studied by cyclic voltammetry using hydrazine as substrate. The electrodes were prepared by mechanically transferring microparticles of the hexacyanoferrates onto the surface of a paraf®n impregnated graphite electrode. The catalytic activities of these compounds were compared based on the ratio of the total current for the catalytic oxidation to the current for the modi®ed electrode. This ratio has been calculated at the peak potentials of the cyclic voltammograms and also at some ®xed anodic potentials. As expected for an electrocatalytic reaction, it was observed that the current ratio is higher at slow scan rates and lower at high scan rates. The catalytic activities of hexacyanoferrates are rather complex and they do not follow any uniform pattern. The hexacyanoferrates of manganese, zinc and indium turned out to possess the highest catalytic activity.

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“…One anodic peak is detected at approximately 0.45 V on the positive scan when the potential is scanned from 0.0 to 0.6 V. This peak has been attributed [15][16][17][18] to the oxidation of Ni(I1) to Ni(II1). A cathodic peak, attributed to the reduction of Ni(II1) to Ni(II), is detected on the negative scan.…”

Section: Cyclic Voltammetrymentioning

confidence: 99%

Electrochemical detection of carbohydrates at nickel‐copper and nickel‐chromium‐iron alloy electrodes

Marioli

Kuwana

1993

Electroanalysis

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Nickel-copper and nickel-chromium-iron alloy electrodes are employed in the amperometric detection of carbohydrates after anion-exchange liquid chromatographic separation. The sugars are oxidized at the Ni(II1) oxyhydroxide sites formed on the electrode surface at potentials of approximately 0.45 V (versus Ag/AgCl reference electrode). The set potential for the electrochemical detection of carbohydrates is optimized on a signal-to-noise (S/N) ratio analysis at different potential values. The detection limits for glucose, based on an S/N ratio of 3, are 15 and 1 picomoles at the nickel-copper and the nickel-chromium-iron alloy electrodes, respectively. The electrodes' response was also assessed with respect to the detection of sugar alcohols, mono-, and disaccharides.

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The oxidation of hydrazine at a nickel anode in alkaline solution

Cited by 67 publications

References 8 publications

Novel Chromosomal DNA Assay Based on Nickel Hydroxide Nanocomposite Films with Facile Construction

Novel Chromosomal DNA Assay Based on Nickel Hydroxide Nanocomposite Films with Facile Construction

A Comparative Study of the Electrocatalytic Activities of Some Metal Hexacyanoferrates for the Oxidation of Hydrazine

Electrochemical detection of carbohydrates at nickel‐copper and nickel‐chromium‐iron alloy electrodes

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