An amperometric sensor for hydrazine based on nano-copper oxide modified electrode

Yin, Zhaojing; Liu, Liping; Yang, Zhousheng

doi:10.1007/s10008-010-1161-2

Cited by 43 publications

(19 citation statements)

References 31 publications

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“…6c, the corresponding calibration curve exhibits an approximate linear response in the concentration range from 1 mM to 5 mM, which is wider than those of nano-copper oxide and copper (hydr) oxide response to hydrazine. 28,44 In the inset of Fig. 6c, the calibration curve of the low concentration range from 1 to 10 mM has also been described and presents a good linearity.…”

Section: Resultsmentioning

confidence: 82%

Hollow CuO nanospheres uniformly anchored on porous Si nanowires: preparation and their potential use as electrochemical sensors

et al. 2012

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Hollow CuO nanospheres have been prepared via a reduction reaction of copper ions on porous Si nanowires combined with calcination in air and uniformly anchored on their surfaces. Scanning electron microscopy (SEM), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS) were employed to characterize and analyze as-synthesized samples. The results reveal that Si nanowires fabricated from heavily doped Si wafer are formed with a meso-porous structure by an Ag-assisted etching approach, and Cu nanoparticles are formed and uniformly decorated on the Si nanowires through a reaction of copper ions reduced by silicon. After annealing in air, Cu nanoparticles are in situ oxidized and transformed into CuO, leading to the formation of hollow nanospheres because of the Kirkendall effect. The diameter size of as-prepared CuO hollow spheres anchored on porous Si nanowires is mainly around 30 nm. Finally, in order to illuminate the advantages of this novel hybrid nanostructure of nanosized hollow spheres supported on porous nanowires, its electrochemical sensing performance to hydrazine as an example has been further investigated. The results confirm that it is a good potential application to detect hydrazine.

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Section: Resultsmentioning

confidence: 82%

Hollow CuO nanospheres uniformly anchored on porous Si nanowires: preparation and their potential use as electrochemical sensors

et al. 2012

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“…Although the above method enhances the electrochemical reaction of hydrazine, most are noble metal nanoparticles, which limits the application in reality. Cupric oxide, a non-precious metal oxide, has been widely used in sensors due to its low cost and good catalytic ability [18][19][20], and it has also been reported as useful for detecting hydrazine hydrate [21][22][23][24][25]. Further study on the sensor is still required in order to accelerate development of an effective method for detecting hydrazine hydrate.…”

Section: Introductionmentioning

confidence: 99%

MOFs-Derived Nano-CuO Modified Electrode as a Sensor for Determination of Hydrazine Hydrate in Aqueous Medium

Lü

et al. 2019

Sensors

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It very important to be able to efficiently detect hydrazine hydrate in an aqueous medium due to its high toxicity. Here, we have proposed a new idea: to construct a sensor for the rapid determination of hydrazine hydrate based on the nano-CuO derived by controlled pyrolysis of HKUST-1 [Cu3(BTC)2(H2O)3]. The as-prepared CuO at 400 °C possesses a uniform appearance with nano-structure via SEM images, and the nano-CuO-400 has exhibited excellent electrocatalytic activity towards hydrazine oxidation. Amperometric i-t curves shows the peak current as linearly proportional to the hydrazine concentration within 1.98–169.3 μmol L−1 and 232–2096 μmol L−1 with the detection limit of 2.55 × 10−8 mol L−1 and 7.01 × 10−8 mol L−1, respectively. Moreover, the sensor constructed in the experiment shows good selectivities, and it is feasible to determining actual water samples.

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“…Among these analytical techniques, electrochemical approaches are considered favourable owing to several advantages that include high sensitivity, fast response and low operating cost. Electrodes modified with nanoparticles of metals and oxides, conducting polymer and metal hexacyanoferrates have been explored as electrochemical catalysts for H 2 O 2 [15][16][17][18] or N 2 H 4 detection [19][20][21][22]. Among them, the metal hexacyanoferrates are commonly used as electrocatalysts for such analysis owing to their excellent electrochemical activity.…”

Section: Introductionmentioning

confidence: 99%

Three-dimensional nanoporous Au films as high-efficiency enzyme-free electrochemical sensors

Gan

et al. 2015

Electrochimica Acta

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An amperometric sensor for hydrazine based on nano-copper oxide modified electrode

Cited by 43 publications

References 31 publications

Hollow CuO nanospheres uniformly anchored on porous Si nanowires: preparation and their potential use as electrochemical sensors

Hollow CuO nanospheres uniformly anchored on porous Si nanowires: preparation and their potential use as electrochemical sensors

MOFs-Derived Nano-CuO Modified Electrode as a Sensor for Determination of Hydrazine Hydrate in Aqueous Medium

Three-dimensional nanoporous Au films as high-efficiency enzyme-free electrochemical sensors

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