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Fabre B, Falaise C, Cadot E. Polyoxometalates-Functionalized Electrodes for (Photo)Electrocatalytic Applications: Recent Advances and Prospects. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Bruno Fabre
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226, F-35000 Rennes, France
| | - Clément Falaise
- Institut Lavoisier de Versailles (UMR-CNRS 8180), UVSQ, Université Paris-Saclay, 45 Avenue des Etats-Unis, 78000 Versailles, France
| | - Emmanuel Cadot
- Institut Lavoisier de Versailles (UMR-CNRS 8180), UVSQ, Université Paris-Saclay, 45 Avenue des Etats-Unis, 78000 Versailles, France
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2
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Ding X, Cai S, Chen X, Wang L, Hong C, Liu G. Fabrication and Electrochemical Study of [(2,2′-bipy/P2Mo18)10] Multilayer Composite Film Modified Electrode for Electrocatalytic Detection of Tyrosinase in Penaeus vannamei. FOOD ANAL METHOD 2022. [DOI: 10.1007/s12161-022-02391-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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3
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Stability Enhancement of Laser-Scribed Reduced Graphene Oxide Electrodes Functionalized by Iron Oxide/Reduced Graphene Oxide Nanocomposites for Nitrite Sensors. JOURNAL OF COMPOSITES SCIENCE 2022. [DOI: 10.3390/jcs6080221] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
An iron oxide/reduced graphene oxide (ION-RGO) nanocomposite has been fabricated to functionalize a low-cost electrochemical nitrite sensor realized by light-scribed reduced graphene oxide (LRGO) electrodes on a PET substrate. To enhance the stability and adhesion of the electrode, the PET substrate was modified by RF oxygen plasma, and a thin layer of the cationic poly (diallyl dimethyl ammonium chloride) was deposited. Raman spectroscopy and scanning electron microscopy coupled to energy-dispersive X-ray spectroscopy (SEM-EDX) reveal that the light-scribing process successfully reduces graphene oxide while forming a porous multilayered structure. As confirmed by cyclic voltammetry, the LRGO electrochemical response to ferri-ferrocyanide and nitrite is significantly improved after functionalization with the ION-RGO nanocomposite film. Under optimized differential pulse voltammetry conditions, the LRGO/ION-RGO electrode responds linearly (R2 = 0.97) to nitrite in the range of 10–400 µM, achieving a limit of detection of 7.2 μM and sensitivity of 0.14 µA/µM. A single LRGO/ION-RGO electrode stands for 11 consecutive runs. The novel fabrication process leads to highly stable and reproducible electrodes for electrochemical sensors and thus offers a low-cost option for the rapid and sensitive detection of nitrite.
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Bagheri AR, Aramesh N, Chen J, Liu W, Shen W, Tang S, Lee HK. Polyoxometalate-based materials in extraction, and electrochemical and optical detection methods: A review. Anal Chim Acta 2022; 1209:339509. [PMID: 35569843 DOI: 10.1016/j.aca.2022.339509] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 01/12/2022] [Accepted: 01/14/2022] [Indexed: 02/07/2023]
Abstract
Polyoxometalates (POMs) as metal-oxide anions have exceptional properties like high negative charges, remarkable redox abilities, unique ligand properties and availability of organic grafting. Moreover, the amenability of POMs to modification with different materials makes them suitable as precursors to further obtain new composites. Due to their unique attributes, POMs and their composites have been utilized as adsorbents, electrodes and catalysts in extraction, and electrochemical and optical detection methods, respectively. A survey of the recent progress and developments of POM-based materials in these methods is therefore desirable, and should be of great interest. In this review article, POM-based materials, their properties as well as their identification methods, and analytical applications as adsorbents, electrodes and catalysts, and corresponding mechanisms of action, where relevant, are reviewed. Some current issues of the utilization of these materials and their future prospects in analytical chemistry are discussed.
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Affiliation(s)
| | - Nahal Aramesh
- Department of Chemistry, Isfahan University, Isfahan, 81746-73441, Iran
| | - Jisen Chen
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, Jiangsu Province, China
| | - Wenning Liu
- Department of Environmental Toxicology, University of California, Davis, CA, 95616, USA
| | - Wei Shen
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, Jiangsu Province, China
| | - Sheng Tang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, Jiangsu Province, China.
| | - Hian Kee Lee
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore.
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Ravanbakhsh H, Dianat S, Hosseinian A. Fabrication of a polyoxotungstate/metal-organic framework/phosphorus-doped reduced graphene oxide nanohybrid modified glassy carbon electrode by electrochemical reduction and its electrochemical properties. RSC Adv 2022; 12:9210-9222. [PMID: 35424841 PMCID: PMC8985131 DOI: 10.1039/d2ra00746k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 03/18/2022] [Indexed: 11/26/2022] Open
Abstract
Hybrid nanocomposites based on polyoxometalates (POMs), metal–organic frameworks (MOFs), and graphene oxide (GO) have a unique set of properties. They have specific properties such as high acidity, oxygen-rich surface, and good redox capability from POMs. In contrast, they do not have weaknesses of POMs such as a low surface area, and high solubility in aqueous media. Herein, a novel organic–inorganic nanohybrid compound based on H3PW12O40 (PW12), a Co-based MOF, and GO was prepared. The prepared hybrid nanocomposite (PW12/MOF/GO) was characterized using different techniques. Then, a PW12/MOF/GO nanocomposite modified glassy carbon electrode (GCE) was fabricated by the drop-casting method and next was dried at room temperature. Then, the PW12/MOF/GO/GCE was subjected to electrochemical reduction at a constant potential of −1.5 V, in 0.1 M H3PO4 solution containing 0.10% w/v PW12/MOF/GO additive. The morphology, electrochemical activity, and stability of the modified electrode (PW12/MOF/P@ERGO/GCE) were studied with FE-SEM coupled with EDS, CV, and amperometry. The obtained results confirmed that the PW12/MOF/P@ERGO/GCE could be effective in hydrogen evolution reaction (HER). The electrochemical activity of the PW12/MOF/P@ERGO/GCE due to the desirable microstructure of the electrocatalyst (e.g. high active surface area and homogeneous distribution of the PW12/MOF/P@ERGO), and also the synergistic effect of the blocks, is more than those of PW12/GCE, MOF/GCE, PW12/MOF/GCE, and P@ERGO/GCE. Moreover, the PW12/MOF/P@ERGO/GCE showed an excellent long-term stability under the air atmosphere. Fabrication of a modified glassy carbon electrode based on a polyoxotungstate/metal–organic framework/phosphorus-doped reduced graphene oxide nanohybrid.![]()
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Affiliation(s)
- Hamid Ravanbakhsh
- Department of Chemistry, Faculty of Sciences, University of Hormozgan Bandar Abbas 79161-93145 Iran +98 76 33670121
| | - Somayeh Dianat
- Department of Chemistry, Faculty of Sciences, University of Hormozgan Bandar Abbas 79161-93145 Iran +98 76 33670121
| | - Amin Hosseinian
- Department of Chemistry, Faculty of Sciences, University of Hormozgan Bandar Abbas 79161-93145 Iran +98 76 33670121
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6
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Veríssimo MIS, Evtuguin DV, Gomes MTSR. Polyoxometalate Functionalized Sensors: A Review. Front Chem 2022; 10:840657. [PMID: 35372262 PMCID: PMC8964365 DOI: 10.3389/fchem.2022.840657] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Accepted: 01/20/2022] [Indexed: 12/13/2022] Open
Abstract
Polyoxometalates (POMs) are a class of metal oxide complexes with a large structural diversity. Effective control of the final chemical and physical properties of POMs could be provided by fine-tuning chemical modifications, such as the inclusion of other metals or non-metal ions. In addition, the nature and type of the counterion can also impact POM properties, like solubility. Besides, POMs may combine with carbon materials as graphene oxide, reduced graphene oxide or carbon nanotubes to enhance electronic conductivity, with noble metal nanoparticles to increase catalytic and functional sites, be introduced into metal-organic frameworks to increase surface area and expose more active sites, and embedded into conducting polymers. The possibility to design POMs to match properties adequate for specific sensing applications turns them into highly desirable chemicals for sensor sensitive layers. This review intends to provide an overview of POM structures used in sensors (electrochemical, optical, and piezoelectric), highlighting their main functional features. Furthermore, this review aims to summarize the reported applications of POMs in sensors for detecting and determining analytes in different matrices, many of them with biochemical and clinical relevance, along with analytical figures of merit and main virtues and problems of such devices. Special emphasis is given to the stability of POMs sensitive layers, detection limits, selectivity, the pH working range and throughput.
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Affiliation(s)
- Marta I. S. Veríssimo
- CESAM, Department of Chemistry, University of Aveiro, Aveiro, Portugal
- *Correspondence: Marta I. S. Veríssimo, ; M. Teresa S. R. Gomes,
| | | | - M. Teresa S. R. Gomes
- CESAM, Department of Chemistry, University of Aveiro, Aveiro, Portugal
- *Correspondence: Marta I. S. Veríssimo, ; M. Teresa S. R. Gomes,
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7
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Cui ZW, Lu JJ, Lin HY, Luan J, Chang ZH, Li XH, Wang XL. Four Keggin-type polyoxometalate-based complexes derived from bis(pyrazine)–bis(amide) ligands for electrochemical sensing of multiple analytes and adsorbing dye molecules. CrystEngComm 2022. [DOI: 10.1039/d1ce01403j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Four new Keggin-based complexes derived from bis(pyrazine)–bis(amide) ligands are used to detect multiple analytes (BrO3− NO2−, Cr(vi) and Fe(iii) ions) and adsorb organic dye molecules from aqueous solution.
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Affiliation(s)
- Zi-Wei Cui
- College of Chemistry and Materials Engineering, Bohai University, Jinzhou, 121013, P. R. China
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Jun-Jun Lu
- College of Chemistry and Materials Engineering, Bohai University, Jinzhou, 121013, P. R. China
| | - Hong-Yan Lin
- College of Chemistry and Materials Engineering, Bohai University, Jinzhou, 121013, P. R. China
| | - Jian Luan
- College of Science, Northeastern University, Shenyang 100819, PR China
| | - Zhi-Han Chang
- College of Chemistry and Materials Engineering, Bohai University, Jinzhou, 121013, P. R. China
| | - Xiao-Hui Li
- College of Chemistry and Materials Engineering, Bohai University, Jinzhou, 121013, P. R. China
| | - Xiu-Li Wang
- College of Chemistry and Materials Engineering, Bohai University, Jinzhou, 121013, P. R. China
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8
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Chen Y, Li F, Li S, Zhang L, Sun M. A review of application and prospect for polyoxometalate-based composites in electrochemical sensor. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2021.109084] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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9
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Fabrication and electrochemical study of K(1,1′- (1,4 Butanediyl)dipyridinium)2[PW11O39Co(H2O)]/MWCNTs-COOH nanohybrid immobilized on glassy carbon for electrocatalytic detection of nitrite. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115139] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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10
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Abstract
Polyoxometalates (POMs) have been used for spectrophotometric determinations of silicon and phosphorus under acidic conditions, referred to as the molybdenum yellow method and molybdenum blue method, respectively. Many POMs are redox active and exhibit fascinating but complicated voltammetric responses. These compounds can reversibly accommodate and release many electrons without exhibiting structural changes, implying that POMs can function as excellent mediators and can be applied to sensitive determination methods based on catalytic electrochemical reactions. In addition, some rare-earth-metal-incorporated POMs exhibit fluorescence, which enables sensitive determination by the enhancement and quenching of fluorescence intensities. In this review, various analytical applications of POMs are introduced, mainly focusing on papers published after 2000, except for the molybdenum yellow method and molybdenum blue method.
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Affiliation(s)
- Tadaharu Ueda
- Department of Marine Resource Science Faculty of Agriculture and Marine Science, Kochi University, Nankoku, 783-8502, Japan. .,Center for Advanced Marine Core Research, Kochi University, Nankoku, 783-8502, Japan.
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11
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Sharifi M, Dianat S, Hosseinian A. Electrochemical investigation and amperometry determination iodate based on ionic liquid/polyoxotungstate/P-doped electrochemically reduced graphene oxide multi-component nanocomposite modified glassy carbon electrode. RSC Adv 2021; 11:8993-9007. [PMID: 35423408 PMCID: PMC8695343 DOI: 10.1039/d1ra00845e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 05/11/2021] [Accepted: 02/22/2021] [Indexed: 12/13/2022] Open
Abstract
A novel modified glassy carbon electrode (GCE) was successfully fabricated with a tetra-component nanocomposite consisting of (1,1′-(1,4-butanediyl)dipyridinium) ionic liquid (bdpy), SiW11O39Ni(H2O) (SiW11Ni) Keggin-type polyoxometalate (POM), and phosphorus-doped electrochemically reduced graphene oxide (P-ERGO) by electrodeposition technique. The (bdpy)SiW11Ni/GO hybrid nanocomposite was synthesized by a one-pot hydrothermal method and characterized by UV-vis absorption, Fourier transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD) analysis, thermogravimetric-differential thermal analysis (TGA/DTA), and transmission electron microscopy (TEM). The morphology, electrochemical performance, and electrocatalysis activity of the nanocomposite modified glassy carbon electrode ((bdpy)SiW11Ni/P-ERGO/GCE) were analyzed by field emission scanning electron microscopy (FE-SEM) coupled with energy-dispersive X-ray spectroscopy (EDS), cyclic voltammetry (CV), square wave voltammetry (SWV), and amperometry, respectively. Under the optimum experimental conditions, the as-prepared sensor showed high sensitivity of 28.1 μA mM−1 and good selectivity for iodate (IO3−) reduction, enabling the detection of IO3− within a linear range of 10–1600 μmol L−1 (R2 = 0.9999) with a limit of detection (LOD) of 0.47 nmol L−1 (S/N = 3). The proposed electrochemical sensor exhibited good reproducibility, and repeatability, high stability, and excellent anti-interference ability, as well as analytical performance in mineral water, tap water, and commercial edible iodized salt which might provide a capable platform for the determination of IO3−. Constructing a sensitive electrochemical sensor based on (bdpy)SiW11Ni/P-ERGO/GCE for IO3− detection at the nanomolar level with noticeable selectivity.![]()
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Affiliation(s)
- Minoo Sharifi
- Department of Chemistry
- Faculty of Sciences
- University of Hormozgan
- Bandar Abbas 79161-93145
- Iran
| | - Somayeh Dianat
- Department of Chemistry
- Faculty of Sciences
- University of Hormozgan
- Bandar Abbas 79161-93145
- Iran
| | - Amin Hosseinian
- Department of Chemistry
- Faculty of Sciences
- University of Hormozgan
- Bandar Abbas 79161-93145
- Iran
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12
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Cherevan AS, Nandan SP, Roger I, Liu R, Streb C, Eder D. Polyoxometalates on Functional Substrates: Concepts, Synergies, and Future Perspectives. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2020; 7:1903511. [PMID: 32328431 PMCID: PMC7175252 DOI: 10.1002/advs.201903511] [Citation(s) in RCA: 83] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 01/28/2020] [Indexed: 05/25/2023]
Abstract
Polyoxometalates (POMs) are molecular metal oxide clusters that feature a broad range of structures and functionalities, making them one of the most versatile classes of inorganic molecular materials. They have attracted widespread attention in homogeneous catalysis. Due to the challenges associated with their aggregation, precipitation, and degradation under operational conditions and to extend their scope of applications, various strategies of depositing POMs on heterogeneous substrates have been developed. Recent ground-breaking developments in the materials chemistry of supported POM composites are summarized and links between molecular-level understanding of POM-support interactions and macroscopic effects including new or optimized reactivities, improved stability, and novel function are established. Current limitations and future challenges in studying these complex composite materials are highlighted, and cutting-edge experimental and theoretical methods that will lead to an improved understanding of synergisms between POM and support material from the molecular through to the nano- and micrometer level are discussed. Future development in this fast-moving field is explored and emerging fields of research in POM heterogenization are identified.
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Affiliation(s)
- Alexey S. Cherevan
- Institute of Materials ChemistryVienna University of TechnologyGetreidemarkt 9/BC/02Vienna1060Austria
| | - Sreejith P. Nandan
- Institute of Materials ChemistryVienna University of TechnologyGetreidemarkt 9/BC/02Vienna1060Austria
| | - Isolda Roger
- Institute of Inorganic Chemistry IUlm UniversityAlbert‐Einstein‐Allee 11Ulm89081Germany
| | - Rongji Liu
- Institute of Inorganic Chemistry IUlm UniversityAlbert‐Einstein‐Allee 11Ulm89081Germany
- CAS Key Laboratory of Green Process and EngineeringInstitute of Process EngineeringChinese Academy of SciencesBeijing100190China
| | - Carsten Streb
- Institute of Inorganic Chemistry IUlm UniversityAlbert‐Einstein‐Allee 11Ulm89081Germany
- Helmholtz‐Institute UlmHelmholtzstr. 11Ulm89081Germany
| | - Dominik Eder
- Institute of Materials ChemistryVienna University of TechnologyGetreidemarkt 9/BC/02Vienna1060Austria
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13
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Wang D, Liu L, Jiang J, Chen L, Zhao J. Polyoxometalate-based composite materials in electrochemistry: state-of-the-art progress and future outlook. NANOSCALE 2020; 12:5705-5718. [PMID: 32104820 DOI: 10.1039/c9nr10573e] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Polyoxometalates (POMs) have been developed as a class of promising smart material candidates not only due to their multitudinous architectures but also their good redox activities and outstanding electron and proton transport capacities. Recently, abundant studies on POMs composited with metal nanoparticles (NPs), carbon materials (e.g., carbon nanotubes (CNTs), carbon quantum dots (CQDs), graphene), and conducting polymers or highly-porous framework materials (e.g., MOFs, ZIFs) have been performed and POM-based composite materials (PCMs) undoubtedly show enhanced stability and improved electrochemical performances. Therefore, POMs and PCMs are of increasing interest in electrocatalysis, electrochemical detection and energy-related fields (such as fuel cells, redox flow batteries and so on), thus, developing novel PCMs has long been the key research topic in POM chemistry. This review mainly summarizes some representative advances in PCMs with electrochemical applications in the past ten years, expecting to provide some useful guidance for future research.
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Affiliation(s)
- Dan Wang
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China.
| | - Lulu Liu
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China.
| | - Jun Jiang
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China.
| | - Lijuan Chen
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China.
| | - Junwei Zhao
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China.
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14
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Recent developments in carbon nanomaterial-enabled electrochemical sensors for nitrite detection. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2019.01.008] [Citation(s) in RCA: 107] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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15
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Dianat S, Hatefi-Mehrjardi A, Mahmoodzadeh K. Electrochemical behavior of inorganic–organic hybrid polyoxometalate ((Cys)3[PW12O40]) nanostructure self-assembled monolayer on polycrystalline gold electrode surfaces. NEW J CHEM 2019. [DOI: 10.1039/c8nj05721d] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synergistic effect of HPW and Cys enhanced electrochemical activity of Au-(Cys)PW electrode.
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Affiliation(s)
- Somayeh Dianat
- Department of Chemistry, Faculty of Sciences, University of Hormozgan
- Bandar Abbas 71961
- Iran
| | - Abdolhamid Hatefi-Mehrjardi
- Department of Chemistry, Payame Noor University (PNU)
- Tehran
- Iran
- Department of Chemistry & Nanoscience and Nanotechnology Research Laboratory (NNRL), Sirjan Payame Noor University
- Sirjan
| | - Kourosh Mahmoodzadeh
- Department of Chemistry, Payame Noor University (PNU)
- Tehran
- Iran
- Department of Chemistry & Nanoscience and Nanotechnology Research Laboratory (NNRL), Sirjan Payame Noor University
- Sirjan
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16
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Wang Q, Khungwa J, Li L, Liu Y, Wang X, Wang S. Fabrication of polyoxometalate/GO/PDDA hybrid nanocomposite modified electrode and electrocatalysis for nitrite ion, ascorbic acid and dopamine. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.07.043] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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17
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Caetano LP, Lima AP, Tormin TF, Richter EM, Espindola FS, Botelho FV, Munoz RAA. Carbon-nanotube Modified Screen-printed Electrode for the Simultaneous Determination of Nitrite and Uric Acid in Biological Fluids Using Batch-injection Amperometric Detection. ELECTROANAL 2018. [DOI: 10.1002/elan.201800189] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Larissa P. Caetano
- Federal University of Uberlândia, Institute of Biotechnology; 38400-902 Uberlândia, MG Brazil
| | - Ana P. Lima
- Federal University of Uberlândia, Institute of Chemistry; 38400-902 Uberlândia, MG Brazil
| | - Thiago F. Tormin
- Federal University of Uberlândia, Institute of Chemistry; 38400-902 Uberlândia, MG Brazil
| | - Eduardo M. Richter
- Federal University of Uberlândia, Institute of Chemistry; 38400-902 Uberlândia, MG Brazil
| | - Foued S. Espindola
- Federal University of Uberlândia, Institute of Biotechnology; 38400-902 Uberlândia, MG Brazil
| | - Françoise V. Botelho
- Federal University of Uberlândia, Institute of Biotechnology; 38400-902 Uberlândia, MG Brazil
| | - Rodrigo A. A. Munoz
- Federal University of Uberlândia, Institute of Chemistry; 38400-902 Uberlândia, MG Brazil
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18
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Shriver-Lake LC, Zabetakis D, Dressick WJ, Stenger DA, Trammell SA. Paper-Based Electrochemical Detection of Chlorate. SENSORS 2018; 18:s18020328. [PMID: 29364153 PMCID: PMC5855869 DOI: 10.3390/s18020328] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 01/12/2018] [Accepted: 01/19/2018] [Indexed: 11/16/2022]
Abstract
We describe the use of a paper-based probe impregnated with a vanadium-containing polyoxometalate anion, [PMo11VO40]5−, on screen-printed carbon electrodes for the electrochemical determination of chlorate. Cyclic voltammetry (CV) and chronocoulometry were used to characterize the ClO3− response in a pH = 2.5 solution of 100 mM sodium acetate. A linear CV current response was observed between 0.156 and 1.25 mg/mL with a detection limit of 0.083 mg/mL (S/N > 3). This performance was reproducible using [PMo11VO40]5−-impregnated filter paper stored under ambient conditions for as long as 8 months prior to use. At high concentration of chlorate, an additional catalytic cathodic peak was seen in the reverse scan of the CVs, which was digitally simulated using a simple model. For chronocoulometry, the charge measured after 5 min gave a linear response from 0.625 to 2.5 mg/mL with a detection limit of 0.31 mg/mL (S/N > 3). In addition, the slope of charge vs. time also gave a linear response. In this case the linear range was from 0.312 to 2.5 mg/mL with a detection limit of 0.15 mg/mL (S/N > 3). Simple assays were conducted using three types of soil, and recovery measurements reported.
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Affiliation(s)
- Lisa C Shriver-Lake
- U.S. Naval Research Laboratory, Center for Bio/Molecular Science & Engineering (Code 6900), 4555 Overlook Avenue SW, Washington, DC 20375, USA.
| | - Dan Zabetakis
- U.S. Naval Research Laboratory, Center for Bio/Molecular Science & Engineering (Code 6900), 4555 Overlook Avenue SW, Washington, DC 20375, USA.
| | - Walter J Dressick
- U.S. Naval Research Laboratory, Center for Bio/Molecular Science & Engineering (Code 6900), 4555 Overlook Avenue SW, Washington, DC 20375, USA.
| | - David A Stenger
- U.S. Naval Research Laboratory, Center for Bio/Molecular Science & Engineering (Code 6900), 4555 Overlook Avenue SW, Washington, DC 20375, USA.
| | - Scott A Trammell
- U.S. Naval Research Laboratory, Center for Bio/Molecular Science & Engineering (Code 6900), 4555 Overlook Avenue SW, Washington, DC 20375, USA.
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Zhang L, Li S, Zhang Z, Tan L, Pang H, Ma H. Facile fabrication of reduced graphene oxide and Keggin-type polyoxometalates nanocomposite film for high performance electrocatalytic oxidation of nitrite. J Electroanal Chem (Lausanne) 2017. [DOI: 10.1016/j.jelechem.2017.11.030] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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