Hierarchically Au-functionalized derived ultrathin NiO nanosheets for highly sensitive electrochemical hydrazine detection

Wang, Wenda; Zhao, Zhenting; Qian, Lei; Zhang, Wenlei; Li, Pengwei; Zhang, Wendong; Zhuiykov, Serge; Hu, Jie

doi:10.1016/j.apsusc.2020.148539

Cited by 12 publications

(3 citation statements)

References 53 publications

(34 reference statements)

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“…For these advantageous characteristics, electrochemical sensors based on AuNPs have been proposed for the detection of many analytes. 8–11 Further, owing to their high reactivity, AuNPs avoid the accumulation of oxidation products on the electrode surface, which is a serious problem for electrochemical sensors, leading to electrode fouling with loss of sensitivity, selectivity, and reproducibility. However, the high surface energy of AuNPs makes them unstable and leads to particle aggregation with a loss of surface area and reactivity.…”

Section: Introductionmentioning

confidence: 99%

Photochemical synthesis, characterization, and electrochemical sensing properties of CD–AuNP nanohybrids

Nocito,

Zribi,

Chelly

et al. 2024

Nanoscale

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Section: Introductionmentioning

confidence: 99%

Photochemical synthesis, characterization, and electrochemical sensing properties of CD–AuNP nanohybrids

Nocito,

Zribi,

Chelly

et al. 2024

Nanoscale

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“…For electrochemical sensors, modified Ni, NiO, and Ni(OH) 2 electrodes commonly provide a well-known redox peak in basic media, which can be related to the oxyhydroxide NiOOH species . In these conditions, nickel oxide can be explored for the catalytic oxidation of many molecules, including glucose and hydrazine . The main focus is to reduce the redox overpotential, enabling the production of selective and sensitive electrocatalytic sensors.…”

Section: Introductionmentioning

confidence: 99%

“… 42 In these conditions, nickel oxide can be explored for the catalytic oxidation of many molecules, including glucose and hydrazine. 43 The main focus is to reduce the redox overpotential, enabling the production of selective and sensitive electrocatalytic sensors. However, despite several successful attempts to synthesize NiO nanoflowers, most reported protocols are usually restricted by the low amounts of produced materials (limited to milligrams) or do not display uniform sizes and shapes.…”

Section: Introductionmentioning

confidence: 99%

Facile Gram-Scale Synthesis of NiO Nanoflowers for Highly Selective and Sensitive Electrocatalytic Detection of Hydrazine

et al. 2023

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The design and development of efficient and electrocatalytic sensitive nickel oxide nanomaterials have attracted attention as they are considered cost-effective, stable, and abundant electrocatalytic sensors. However, although innumerable electrocatalysts have been reported, their large-scale production with the same activity and sensitivity remains challenging. In this study, we report a simple protocol for the gram-scale synthesis of uniform NiO nanoflowers (approximately 1.75 g) via a hydrothermal method for highly selective and sensitive electrocatalytic detection of hydrazine. The resultant material was characterized by scanning electron microscopy, X-ray photoelectron spectroscopy, and X-ray diffraction. For the production of the modified electrode, NiO nanoflowers were dispersed in Nafion and drop-cast onto the surface of a glassy carbon electrode (NiO NF/GCE). By cyclic voltammetry, it was possible to observe the excellent performance of the modified electrode toward hydrazine oxidation in alkaline media, providing an oxidation overpotential of only +0.08 V vs Ag/AgCl. In these conditions, the peak current response increased linearly with hydrazine concentration ranging from 0.99 to 98.13 μmol L–1. The electrocatalytic sensor showed a high sensitivity value of 0.10866 μA L μmol–1. The limits of detection and quantification were 0.026 and 0.0898 μmol L–1, respectively. Considering these results, NiO nanoflowers can be regarded as promising surfaces for the electrochemical determination of hydrazine, providing interesting features to explore in the electrocatalytic sensor field.

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Glucose sensing via green synthesis of NiO–SiO2 composites with citrus lemon peel extract

Mahar,

Tahira,

Parveen

et al. 2024

J Mater Sci: Mater Electron

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Hierarchically Au-functionalized derived ultrathin NiO nanosheets for highly sensitive electrochemical hydrazine detection

Cited by 12 publications

References 53 publications

Photochemical synthesis, characterization, and electrochemical sensing properties of CD–AuNP nanohybrids

Photochemical synthesis, characterization, and electrochemical sensing properties of CD–AuNP nanohybrids

Facile Gram-Scale Synthesis of NiO Nanoflowers for Highly Selective and Sensitive Electrocatalytic Detection of Hydrazine

Glucose sensing via green synthesis of NiO–SiO2 composites with citrus lemon peel extract

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