An exploration of 3-methoxypropionitrile chemical sensor based on layered hexagonal NiCo2O4 nanoplates as electrode material

Jang, Gwang‐Su; Kim, Eun‐Bi; Akhtar, M. Shaheer; Shin, Hyung‐Shik

doi:10.1016/j.ceramint.2021.02.101

Cited by 7 publications

(6 citation statements)

References 48 publications

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“…Based on the Figure 1 MnFe2O4 and NiCo2O4 have similar structure, This is because both are included in the binary oxide group, which has two metals bonded to oxygen [11]. Fe3O4 has a very dense structure because there are two types of Fe 2+ and Fe 3+ atoms scattered in octahedral and tetrahedral sites [12].…”

Section: Resultsmentioning

confidence: 98%

Crystal Structure Modelling of Magnetic Material On Computational Study

Ardiyanti¹,

Mustaqim²

2021

Proceedings of the International Conference on Science and Engineering (ICSE-UIN-SUKA 2021)

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Computational research has been developed recently. One of the research is in the study of material physics. The computational study uses to make a model of the crystal structure which is difficult to do experimentally. In this study, the pymatgen module was used to compute the crystal structure of magnetic materials such as Fe3O4, MnFe2O4 and NiCo2O4. Through the structural submodule, information can be obtained from the input data shift and its primitive structure. The structure of the three magnetic materials is cubic spinal which is following the experimental data. The suitability of computational data and experimental data shows the pymatgen module can work optimally in performing computational modeling of materials.

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Section: Resultsmentioning

confidence: 98%

Crystal Structure Modelling of Magnetic Material On Computational Study

Ardiyanti¹,

Mustaqim²

2021

Proceedings of the International Conference on Science and Engineering (ICSE-UIN-SUKA 2021)

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“…Furthermore, the difference between the Ni 2p 3/2 and Ni 2p 1/2 double peaks was ~17.58 eV, indicating the existence of various oxidized Ni 3+ and Ni 2+ ions [ 41 , 42 ]. Figure 5 d shows the high-resolution Mg 1s spectra, which has binding energies of ~1302.12 eV for Mg and ~1303.24 eV for Mg–O [ 23 ]. Thus, the existence of Ni 3+ , Ni 2+ , and Mg 2+ ions was explained by the XPS spectra of MgNiO 2 CFs.…”

Section: Resultsmentioning

confidence: 99%

“…Metal oxides, primarily transition metal oxides, have been utilized to alter electrodes for the detection of a variety of analytes [ 21 ], and just a few have been exploited for heavy metal detection [ 22 ]. Recently, secondary transition metal oxide or binary metal oxide-based materials have presented remarkable catalytic properties [ 23 ]. Apart from other metal oxides, blending MgO and NiO to form MgNiO 2 materials has received immense attention because this combination significantly elevates the active sites for excellent catalytic reaction.…”

Section: Introductionmentioning

confidence: 99%

Porous MgNiO2 Chrysanthemum Flower Nanostructure Electrode for Toxic Hg2+ Ion Monitoring in Aquatic Media

Imran,

Kim,

Kwak

et al. 2023

Sensors

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A simple hydrothermal synthesis approach was used to synthesize porous MgNiO2 Chrysanthemum Flowers (CFs) nanostructures and applied as a sensing electrode for quick detection of hazardous mercury (Hg2+ ions). The morphological, structural, and electrochemical properties of MgNiO2 CFs were investigated. The morphological characteristic of MgNiO2 CFs, with a specific surface area of 45.618 m2/g, demonstrated strong electrochemical characteristics, including cations in different oxidation states of Ni3+/Ni2+. Using a three-electrode system for electrochemical detection, the MgNiO2 CFs based electrode revealed a good correlation coefficient (R2) of ~0.9721, a limit of detection (LOD) of ~11.7 μM, a quick response time (10 s), and a sensitivity of 8.22 μA∙μM−1∙cm−2 for Hg2+ ions over a broad linear range of 10–100 μM. Moreover, the selectivity for Hg2+ ions in tap water and drinking water was determined, and a promising stability of 25 days by MgNiO2 CFs electrode was exhibited. The obtained results indicate that the developed MgNiO2 CFs are a promising electrode for detecting hazardous Hg2+ ions in water and have the potential to be commercialized in the future.

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“…NiCo 2 O 4 has greater electronic conductivity and electrochemical performance when comparing with cobalt and nickel oxides. The synergic impact of nickel and cobalt elements in NiCo 2 O 4 provides a richer diversity of redox reactions when comparing with the monometallic NiO and Co 3 O 4 [ 64 , 65 , 66 ]. Accordingly, NiCo 2 O 4 is considered as an electrochemical material but still suffers from some problems with improvement in a small surface area, pore size, and intrinsically poor electro-conductivity [ 67 ].…”

Section: Introductionmentioning

confidence: 99%

Simple Preparation and Characterization of Hierarchical Flower-like NiCo2O4 Nanoplates: Applications for Sunset Yellow Electrochemical Analysis

et al. 2022

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The current work was performed to construct a novel electrochemical sensing system for determination of sunset yellow via the modification of screen-printed graphite electrode modified with hierarchical flower-like NiCo2O4 nanoplates (NiCo2O4/SPGE). The prepared material (hierarchical flower-like NiCo2O4 nanoplates) was analyzed by diverse microscopic and spectroscopic approaches for the crystallinity, composition, and morphology. Chronoamperometry, differential pulse voltammetry, linear sweep voltammetry, and cyclic voltammetry were used for determination of the electrochemical behavior of sunset yellow. The as-fabricated sensor had appreciable electro-catalytic performance and current sensitivity in detecting the sunset yellow. There were some advantages for NiCo2O4/SPGE under the optimized circumstances of sunset yellow determination, including a broad dynamic linear between 0.02 and 145.0 µM, high sensitivity of 0.67 μA/(μM.cm2), and a narrow limit of detection of 0.008 μM. The practical applicability of the proposed sensor was verified by determining the sunset yellow in real matrices, with satisfactory recoveries.

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An exploration of 3-methoxypropionitrile chemical sensor based on layered hexagonal NiCo2O4 nanoplates as electrode material

Cited by 7 publications

References 48 publications

Crystal Structure Modelling of Magnetic Material On Computational Study

Crystal Structure Modelling of Magnetic Material On Computational Study

Porous MgNiO2 Chrysanthemum Flower Nanostructure Electrode for Toxic Hg2+ Ion Monitoring in Aquatic Media

Simple Preparation and Characterization of Hierarchical Flower-like NiCo2O4 Nanoplates: Applications for Sunset Yellow Electrochemical Analysis

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