Synthesis of mesoporous NiO nanosheet and its application on mercury (II) sensor

Wu, Zhengcui; Jiang, Lidan; Zhu, Yanan; Xu, Chengrong; Yin, Yulong; Wang, Xiuhua

doi:10.1007/s10008-012-1747-y

Cited by 44 publications

(19 citation statements)

References 41 publications

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“…Very recently, nanoscale metal oxides as novel modifiers have been reported in electrochemical detection of HMIs12345. Compared with traditional modifiers such as noble metals and biomolecules, the electrodes fabricated with nanoscale metal oxides are easy to synthesize with low cost135. However, as is often claimed, increased currents and increased analytical sensitivity are simply reflections of an increased microscopic surface area and not electrocatalytic activity or any other nano-effects.…”

mentioning

confidence: 99%

Facet-dependent electrochemical properties of Co3O4 nanocrystals toward heavy metal ions

Meng

Luo

et al. 2013

Sci Rep

110

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We revealed an interesting facet-dependent electrochemical behavior toward heavy metal ions (HMIs) based on their adsorption behaviors. The (111) facet of Co3O4 nanoplates has better electrochemical sensing performance than that of the (001) facet of Co3O4 nanocubes. Adsorption measurements and density-functional theory (DFT) calculations reveals that adsorption of HMIs is responsible for the difference of electrochemical properties. Our combined experimental and theoretical studies provide a solid hint to explain the mechanism of electrochemical detection of HMIs using nanoscale metal oxides. Furthermore, this study not only suggests a promising new strategy for designing high performance electrochemical sensing interface through the selective synthesis of nanoscale materials exposed with different well-defined facets, but also provides a deep understanding for a more sensitive and selective electroanalysis at nanomaterials modified electrodes.

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confidence: 99%

Facet-dependent electrochemical properties of Co3O4 nanocrystals toward heavy metal ions

Meng

Luo

et al. 2013

Sci Rep

110

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“…The disposable electrode exhibited detection limits of 8×10 4 ppb in drinking water. Recently, mesoporous NiO nanosheets has been synthesized just by the calcination of β‐Ni(OH) 2 . The prepared mesoporous NiO nanosheets has been used for the selective detection of Hg 2+ with a linear range of 0.8 to 500 μM .…”

Section: Metal Oxides and Zeolite Based Electrochemical Sensors For Ementioning

confidence: 99%

“…Recently, mesoporous NiO nanosheets has been synthesized just by the calcination of β‐Ni(OH) 2 . The prepared mesoporous NiO nanosheets has been used for the selective detection of Hg 2+ with a linear range of 0.8 to 500 μM . Mesoporosity and large surface area of NiO nanosheets were accountable for improved adsorption capacity of NiO towards Hg 2+ that boosted the sensing efficiency of developed sensor in practical applications when compared to porous NiO flowers.…”

Section: Metal Oxides and Zeolite Based Electrochemical Sensors For Ementioning

confidence: 99%

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Electrochemical Sensor Platforms Based on Nanostructured Metal Oxides, and Zeolite‐Based Materials

Prathap

Kaur

Srivastava

2018

The Chemical Record

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Electrochemical sensors have drawn significant attention over the last couple of decades because of their ability to improve detection of organic and inorganic analytes found in the field of biotechnology, environmental sciences, medicine, and food quality control. This personal account summarizes the state‐of‐art research carried out in the construction and evaluation of nanostructured metal oxides and zeolite based electrochemical sensors. Metal oxides and zeolite‐based nanomaterials have many unique and extraordinary properties such as tunable redox activity, surface functionalization ability, optimum conductivity, large surface area, biocompatibility and so forth. In this personal account, the current advances in electrochemical sensor applications of metal oxides, zeolite‐based nanomaterials, and their nanocomposites are described for the single and simultaneous determination of organic & inorganic contaminants present in water bodies, physiological bio‐molecules present in human blood & urine samples, and organic contaminants present in food materials.Moreover, concluding section focuses discussion on the future developments and applications of these materials in various emerging technologies.

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“…However, the use of templates is undesirable as it enhances the production cost and complexity. Therefore, an easily controlled method without the need for templates is more significant and feasible, and further advocated owing to its simplicity and low cost [9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Template-free synthesis of ultrathin mesoporous NiO nanosheets and their application in supercapacitors

Cheng

2013

Materials Research Bulletin

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Synthesis of mesoporous NiO nanosheet and its application on mercury (II) sensor

Cited by 44 publications

References 41 publications

Facet-dependent electrochemical properties of Co3O4 nanocrystals toward heavy metal ions

Facet-dependent electrochemical properties of Co3O4 nanocrystals toward heavy metal ions

Electrochemical Sensor Platforms Based on Nanostructured Metal Oxides, and Zeolite‐Based Materials

Template-free synthesis of ultrathin mesoporous NiO nanosheets and their application in supercapacitors

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