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Synthesis, Structure, and Electrocatalysis of a Novel Compound Based on [β-Mo8O26]4− Cluster and [NiN4O2]2+ Secondary Building Unit. J CLUST SCI 2022. [DOI: 10.1007/s10876-021-02082-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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2
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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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Electrochemical Sensors for Determination of Bromate in Water and Food Samples-Review. BIOSENSORS-BASEL 2021; 11:bios11060172. [PMID: 34072226 PMCID: PMC8230011 DOI: 10.3390/bios11060172] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 05/15/2021] [Accepted: 05/18/2021] [Indexed: 11/16/2022]
Abstract
The application of potassium bromate in the baking industry is used in most parts of the world to avert the human health compromise that characterizes bromates carcinogenic effect. Herein, various methods of its analysis, especially the electrochemical methods of bromate detection, were extensively discussed. Amperometry (AP), cyclic voltammetry (CV), square wave voltammetry (SWV), electrochemiluminescence (ECL), differential pulse voltammetry and electrochemical impedance spectroscopy (EIS) are the techniques that have been deployed for bromate detection in the last two decades, with 50%, 23%, 7.7%, 7.7%, 7.7% and 3.9% application, respectively. Despite the unique electrocatalytic activity of metal phthalocyanine (MP) and carbon quantum dots (CQDs), only few sensors based on MP and CQDs are available compared to the conducting polymers, carbon nanotubes (CNTs), metal (oxide) and graphene-based sensors. This review emboldens the underutilization of CQDs and metal phthalocyanines as sensing materials and briefly discusses the future perspective on MP and CQDs application in bromate detection via EIS.
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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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Wang T, Zhou Q, Ren X, Zhou Y, Zhang L, Shehzad FK, Iqbal A. Incorporation of Keggin-Type Phosphomolybdic Acid, Ionic Liquid and Carbon Nanotube Leading to Formation of Multifunctional Ternary Composite Materials: Fabrication, Characterization and Electrochemical Reduction/Detection of Iodate, Borate and Nitrite. J CLUST SCI 2019. [DOI: 10.1007/s10876-019-01557-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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6
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Feizy S, Haghighi B. A survey on the effect of ionic liquid on electrochemical behavior and electrocatalytic activity of a phosphomolybdic acid-ionic liquid-MWCNT–modified glassy carbon electrode. J Solid State Electrochem 2019. [DOI: 10.1007/s10008-019-04228-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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7
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Tamiji T, Nezamzadeh-Ejhieh A. Sensitive voltammetric determination of bromate by using ion-exchange property of a Sn(II)-clinoptilolite-modified carbon paste electrode. J Solid State Electrochem 2018. [DOI: 10.1007/s10008-018-4119-4] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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8
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Chen X, Zhou Y, Roy VAL, Han ST. Evolutionary Metal Oxide Clusters for Novel Applications: Toward High-Density Data Storage in Nonvolatile Memories. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30. [PMID: 29058796 DOI: 10.1002/adma.201703950] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2017] [Revised: 08/31/2017] [Indexed: 05/03/2023]
Abstract
Because of current fabrication limitations, miniaturizing nonvolatile memory devices for managing the explosive increase in big data is challenging. Molecular memories constitute a promising candidate for next-generation memories because their properties can be readily modulated through chemical synthesis. Moreover, these memories can be fabricated through mild solution processing, which can be easily scaled up. Among the various materials, polyoxometalate (POM) molecules have attracted considerable attention for use as novel data-storage nodes for nonvolatile memories. Here, an overview of recent advances in the development of POMs for nonvolatile memories is presented. The general background knowledge of the structure and property diversity of POMs is also summarized. Finally, the challenges and perspectives in the application of POMs in memories are discussed.
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Affiliation(s)
- Xiaoli Chen
- College of Electronic Science and Technology, Shenzhen University, Shenzhen, 518060, P. R. China
- Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Ye Zhou
- Institute for Advanced Study, Shenzhen University, Shenzhen, 518060, P. R. China
| | - Vellaisamy A L Roy
- Department of Physics and Materials Science, City University of Hong Kong, Hong Kong SAR, 999077, P. R. China
| | - Su-Ting Han
- College of Electronic Science and Technology, Shenzhen University, Shenzhen, 518060, P. R. China
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Polyoxometalate-Functionalized Nanocarbon Materials for Energy Conversion, Energy Storage, and Sensor Systems. ADVANCES IN INORGANIC CHEMISTRY 2017. [DOI: 10.1016/bs.adioch.2016.12.004] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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10
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Dong BX, Chen HB, Wu YC, Zhao J, Teng YL, Liu WL, Li ZW. Construction of (3,6)-connected polyoxometalate-based metal–organic frameworks (POMOFs) from triangular carboxylate and dimerized Zn4-ε-Keggin. Dalton Trans 2017; 46:14286-14292. [DOI: 10.1039/c7dt03452k] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The methodology of extension of reduced transition metal-grafted ε-Keggin polyoxoanions with two types of terphenyl-based tricarboxylates was used to isolate two (3,6)-connected 3D POMOFs.
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Affiliation(s)
- Bao-Xia Dong
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou
- P. R. China
| | - Hua-Bo Chen
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou
- P. R. China
| | - Yi-Chen Wu
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou
- P. R. China
| | - Juan Zhao
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou
- P. R. China
| | - Yun-Lei Teng
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou
- P. R. China
| | - Wen-Long Liu
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou
- P. R. China
| | - Zong-Wei Li
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou
- P. R. China
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Fernandes DM, Nunes M, Bachiller-Baeza B, Rodríguez-Ramos I, Guerrero-Ruiz A, Delerue-Matos C, Freire C. PMo11V@N-CNT electrochemical properties and its application as electrochemical sensor for determination of acetaminophen. J Solid State Electrochem 2016. [DOI: 10.1007/s10008-016-3463-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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12
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Sun C, Deng N, An H, Cui H, Zhai J. Electrocatalytic reduction of bromate based on Pd nanoparticles uniformly anchored on polyaniline/SBA-15. CHEMOSPHERE 2015; 141:243-249. [PMID: 26277081 DOI: 10.1016/j.chemosphere.2015.08.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Accepted: 08/05/2015] [Indexed: 06/04/2023]
Abstract
A nano-composite electrocatalyst of Pd nanoparticles (Pd-NPs) anchored on polyaniline (PANI) supported by mesoporous SBA-15 (Pd-NPs/PANI/SBA-15), was synthesized using an in situ chemical method. Transmission electron microscopy showed that the Pd-NPs were homogeneously dispersed. Fourier-transform infrared and X-ray photoelectron spectroscopies confirmed that the Pd-NPs in the metallic state (Pd(0)) were predominantly immobilized on nitrogen sites in the PANI chains. The electrochemical performance of Pd-NPs/PANI/SBA-15 for electrocatalytic reduction of bromate (BrO3(-)) in an acidic medium was investigated by cyclic voltammetry (CV) and amperometric measurement. The reduction peak in the CV curves in the region 0.12 to -0.22V (vs. SCE) corresponded to response of BrO3(-) electroreduction, and the reduction peak current was well fitted linearly to the BrO3(-) concentration. It is proposed that the bromate ions diffuse to the Pd-NPs active sites and then the electrocatalytic reduction occurred with the H(+) doped in PANI. Furthermore, by amperometric measurement, Pd-NPs/PANI/SBA-15 showed relatively high sensitivity with respect to BrO3(-) concentration in the range of 8μmolL(-1) to 40mmolL(-1). Continuous CV for 200 cycles proved that Pd-NPs/PANI/SBA-15 had excellent electrocatalytic stability. These results show that Pd-NPs/PANI/SBA-15 is effective for electrocatalytic reduction of BrO3(-) and has great potential for the fabrication of BrO3(-) electrochemical sensor.
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Affiliation(s)
- Chencheng Sun
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210046, PR China
| | - Ning Deng
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210046, PR China
| | - Hao An
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210046, PR China
| | - Hao Cui
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210046, PR China.
| | - Jianping Zhai
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210046, PR China
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Ma W, Meng F, Cheng Z, Sha X, Xin G, Tan D. Synthesized of macroporous composite electrode by activated carbon fiber and Mg–Ca–Al (NO3) hydrotalcite-like compounds to remove bromate. Colloids Surf A Physicochem Eng Asp 2015. [DOI: 10.1016/j.colsurfa.2015.06.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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14
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Guo W, Tong X, Liu S. Polyoxometalate/chitosan–electrochemically reduced graphene oxide as effective mediating systems for electrocatalytic reduction of persulfate. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.05.097] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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15
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Li X, Li J, Wang H, Li R, Ma H, Du B, Wei Q. An electrochemiluminescence sensor for bromate assay based on a new cationic polythiophene derivative. Anal Chim Acta 2014; 852:69-73. [PMID: 25441881 DOI: 10.1016/j.aca.2014.09.021] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Revised: 09/09/2014] [Accepted: 09/11/2014] [Indexed: 11/19/2022]
Abstract
A sensitive electrochemiluminescence (ECL) sensor was fabricated for bromate assay based on a cationic polythiophene derivative, poly[3-(1,1'-dimethyl-4-piperidinemethylene)thiophene-2,5-diyl chloride] (PTh-D)/nafion modified Au electrode. Bromate was used as the coreactant as well as detecting analyte in the ECL sensor for the first time. The prepared PTh-D exhibited excellent solubility, strong and stable cathodic ECL activity. PTh-D can be immobilized on the surface of Au electrode via AuS bonding and nafion and chitosan were also used to immobilize PTh-D. The fabricated sensor exhibited a good linear relationship between the ECL intensities and the concentrations of BrO3(-) ranging from 1 μM to 0.1 M with a detection limit of 1 μM. This proposed method not only expands the application of PTh-D, but also opens new doors toward the detection of BrO3(-).
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Affiliation(s)
- Xiaojian Li
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Jianxiu Li
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Huan Wang
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Rongxia Li
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Hongmin Ma
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Bin Du
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China
| | - Qin Wei
- Key Laboratory of Chemical Sensing & Analysis in Universities of Shandong, School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, PR China.
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Li Y, Chen SM, Thangamuthu R, Ajmal Ali M, Al-Hemaid FMA. Preparation, Characterization, and Bioelectrocatalytic Properties of Hemoglobin Incorporated Multiwalled Carbon Nanotubes-Poly-L-lysine Composite Film Modified Electrodes Towards Bromate. ELECTROANAL 2014. [DOI: 10.1002/elan.201400066] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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17
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Zhao JW, Li YZ, Ji F, Yuan J, Chen LJ, Yang GY. Syntheses, structures and electrochemical properties of a class of 1-D double chain polyoxotungstate hybrids [H(2)dap][Cu(dap)(2)](0.5)[Cu(dap)(2)(H2O)][Ln(H(2)O)3(α-GeW(11)O(39))]·3H(2)O. Dalton Trans 2014; 43:5694-706. [PMID: 24554042 DOI: 10.1039/c3dt53616e] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of novel organic-inorganic hybrid 1-D double chain germanotungstates [H2dap][Cu(dap)2]0.5[Cu(dap)2(H2O)][Ln(H2O)3(α-GeW11O39)]·3H2O [Ln = La(III) (1), Pr(III) (2), Nd(III) (3), Sm(III) (4), Eu(III) (5), Tb(III) (6), Er(III) (7)] (dap = 1,2-diaminopropane) have been hydrothermally prepared and structurally characterized by elemental analyses, powder X-ray diffraction (PXRD), IR spectra, thermogravimetric (TG) analyses, X-ray photoelectron spectroscopy (XPS) and single-crystal X-ray diffraction. The most prominent structural feature of 1-7 is that the [Ln(H2O)3(α-GeW11O39)](5-) moieties are firstly connected with each other via the W-O-Ln-O-W bridges creating a 1-D {[Cu(dap)2(H2O)][Ln(H2O)3(α-GeW11O39)]}n(3n-) polymeric chain and then two adjacent antiparallel 1-D polymeric chains are linked together through [Cu(dap)2](2+) linkages giving rise to the rare organic-inorganic hybrid 1-D Cu(II)-Ln(III) heterometallic double-chain architectures. To the best of our knowledge, 1-7 represent the first 1-D double-chain Cu(II)-Ln(III) heterometallic germanotungstates. The variable-temperature magnetic susceptibilities of 2, 4 and 7 have been investigated. Furthermore, the solid-state electrochemical and electro-catalytic properties of 3 and 4 have been measured in 0.5 mol L(-1) Na2SO4 + H2SO4 aqueous solution by entrapping them in a carbon paste electrode. 3 and 4 display apparent electro-catalytic activities for nitrite, bromate and hydrogen peroxide reduction.
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Affiliation(s)
- Jun-Wei Zhao
- Institute of Molecular and Crystal Engineering, Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, P. R. China.
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Zhang Y, Wen F, Jiang Y, Wang L, Zhou C, Wang H. Layer-by-layer construction of caterpillar-like reduced graphene oxide–poly(aniline-co-o-aminophenol)–Pd nanofiber on glassy carbon electrode and its application as a bromate sensor. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2013.10.143] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Azadbakht A, Abbasi AR. Fabrication of highly sensitive cysteine electrochemical sensor based on nanostructured compound and carbon nanotube modified electrode. RUSS J ELECTROCHEM+ 2013. [DOI: 10.1134/s1023193513120021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Gan T, Hu C, Sun Z, Hu S. Facile synthesis of water-soluble fullerene–graphene oxide composites for electrodeposition of phosphotungstic acid-based electrocatalysts. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.08.059] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Wang R, Jia D, Cao Y. Facile synthesis and enhanced electrocatalytic activities of organic–inorganic hybrid ionic liquid polyoxometalate nanomaterials by solid-state chemical reaction. Electrochim Acta 2012. [DOI: 10.1016/j.electacta.2012.04.011] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Fabrication and electrochemical sensing property of a composite film based on a polyoxometalate and palladium nanoparticles. Electrochim Acta 2012. [DOI: 10.1016/j.electacta.2012.03.017] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Wu SH, Nie FH, Chen QZ, Sun JJ. Highly sensitive detection of silybin based on adsorptive stripping analysis at single-sided heated screen-printed carbon electrodes modified with multi-walled carbon nanotubes with direct current heating. Anal Chim Acta 2011; 687:43-9. [DOI: 10.1016/j.aca.2010.12.015] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2010] [Revised: 12/05/2010] [Accepted: 12/08/2010] [Indexed: 11/25/2022]
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Haghighi B, Hamidi H, Gorton L. Formation of a robust and stable film comprising ionic liquid and polyoxometalate on glassy carbon electrode modified with multiwalled carbon nanotubes: Toward sensitive and fast detection of hydrogen peroxide and iodate. Electrochim Acta 2010. [DOI: 10.1016/j.electacta.2010.03.041] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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25
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Chitosan-assisted fabrication and electrocatalytic activity of the composite film electrode of heteropolytungstate/carbon nanotubes. Electrochim Acta 2010. [DOI: 10.1016/j.electacta.2009.10.003] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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26
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Dispersion effect of Cs-PW particles on multiwalled carbon nanotubes and their electrocatalytic activity on the reduction of bromate. Electrochim Acta 2009. [DOI: 10.1016/j.electacta.2009.03.010] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Fabrication of carbon paste electrode containing [PFeW11O39]4− polyoxoanion supported on modified amorphous silica gel and its electrocatalytic activity for H2O2 reduction. Electrochim Acta 2009. [DOI: 10.1016/j.electacta.2008.12.063] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Electrochemical sensors based on carbon nanotubes. SENSORS 2009; 9:2289-319. [PMID: 22574013 PMCID: PMC3348810 DOI: 10.3390/s90402289] [Citation(s) in RCA: 230] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/08/2009] [Revised: 03/17/2009] [Accepted: 03/30/2009] [Indexed: 11/17/2022]
Abstract
This review focuses on recent contributions in the development of the electrochemical sensors based on carbon nanotubes (CNTs). CNTs have unique mechanical and electronic properties, combined with chemical stability, and behave electrically as a metal or semiconductor, depending on their structure. For sensing applications, CNTs have many advantages such as small size with larger surface area, excellent electron transfer promoting ability when used as electrodes modifier in electrochemical reactions, and easy protein immobilization with retention of its activity for potential biosensors. CNTs play an important role in the performance of electrochemical biosensors, immunosensors, and DNA biosensors. Various methods have been developed for the design of sensors using CNTs in recent years. Herein we summarize the applications of CNTs in the construction of electrochemical sensors and biosensors along with other nanomaterials and conducting polymers.
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Zhao Q, Feng X, Mei S, Jin Z. Carbon-nanotube-assisted high loading and controlled release of polyoxometalates in biodegradable multilayer thin films. NANOTECHNOLOGY 2009; 20:105101. [PMID: 19417508 DOI: 10.1088/0957-4484/20/10/105101] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Carbon nanotubes loaded with peptides, proteins and drugs can translocate across the cell membrane. This big advantage has attracted increasing attention to design a novel delivery system using nanotubes. Polyoxometalate (POM) is a promising antitumor drug and it shows a very strong interaction with carbon nanotube surfaces. In this paper, a novel complex of POM-modified single-walled carbon nanotubes (SWNTs) and chitosan was fabricated through a layer-by-layer self-assembly process. With the addition of SWNTs, the loading of POM in this thin film was doubled in the high ionic strength. The initial burst release of POMs in the (POM/chitosan)(n) thin film was suppressed in the (POM-SWNT/chitosan)(n) thin film. Also the instability of POMs in a physiologically relevant pH environment was overcome. The strong interaction between POMs and SWNTs was believed to be the determinant factor in the higher loading and prolonged release of POMs in (POM-SWNT/chitosan)(n) thin films.
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Affiliation(s)
- Qichao Zhao
- Department of Chemistry, Renmin University of China, Beijing 100872, People's Republic of China
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Pang H, Peng J, Sha J, Tian A, Zhang P, Chen Y, Zhu M. Synthesis, structure and electrochemical properties of a new hybrid based on Wells–Dawson polyanions and silver complexes. J Mol Struct 2009. [DOI: 10.1016/j.molstruc.2009.01.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Salimi A, Korani A, Hallaj R, Khoshnavazi R, Hadadzadeh H. Immobilization of [Cu(bpy)2]Br2 complex onto a glassy carbon electrode modified with alpha-SiMo12O40(4-) and single walled carbon nanotubes: application to nanomolar detection of hydrogen peroxide and bromate. Anal Chim Acta 2009; 635:63-70. [PMID: 19200480 DOI: 10.1016/j.aca.2009.01.007] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2008] [Revised: 12/29/2008] [Accepted: 01/07/2009] [Indexed: 10/21/2022]
Abstract
A simple procedure has been used for preparation of modified glassy carbon electrode with carbon nanotubes and copper complex. Copper complex [Cu(bpy)(2)]Br(2) was immobilized onto glassy carbon (GC) electrode modified with silicomolybdate, alpha-SiMo(12)O(40)(4-) and single walled carbon nanotubes (SWCNTs). Copper complex and silicomolybdate irreversibly and strongly adsorbed onto GC electrode modified with CNTs. Electrostatic interactions between polyoxometalates (POMs) anions and Cu-complex, cations mentioned as an effective method for fabrication of three-dimensional structures. The modified electrode shows three reversible redox couples for polyoxometalate and one redox couple for Cu-complex at wide range of pH values. The electrochemical behavior, stability and electron transfer kinetics of the adsorbed redox couples were investigated using cyclic voltammetry. Due to electrostatic interaction, copper complex immobilized onto GC/CNTs/alpha-SiMo(12)O(40)(4-) electrode shows more stable voltammetric response compared to GC/CNTs/Cu-complex modified electrode. In comparison to GC/CNTs/Cu-complex the GC/CNTs/alpha-SiMo(12)O(40)(4-) modified electrodes shows excellent electrocatalytic activity toward reduction H(2)O(2) and BrO(3)(-) at more reduced overpotential. The catalytic rate constants for catalytic reduction hydrogen peroxide and bromate were 4.5(+/-0.2)x10(3) M(-1) s(-1) and 3.0(+/-0.10)x10(3) M(-1) s(-1), respectively. The hydrodynamic amperommetry technique at 0.08 V was used for detection of nanomolar concentration of hydrogen peroxide and bromate. Detection limit, sensitivity and linear concentration range proposed sensor for bromate and hydrogen peroxide detection were 1.1 nM and 6.7 nA nM(-1), 10 nM-20 microM, 1 nM, 5.5 nA nM(-1) and 10 nM-18 microM, respectively.
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Affiliation(s)
- Abdollah Salimi
- Department of Chemistry, University of Kurdistan, P.O. Box 416, Sanandaj, Iran.
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Salimi A, Korani A, Hallaj R, Khoshnavazi R. Modification of Glassy Carbon Electrode With Single-Walled Carbon Nanotubes and α-Silicomolybdate: Application to Sb(III) Detection. ELECTROANAL 2008. [DOI: 10.1002/elan.200804347] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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A modified composite film electrode of polyoxometalate/carbon nanotubes and its electrocatalytic reduction. J APPL ELECTROCHEM 2008. [DOI: 10.1007/s10800-008-9704-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Skunik M, Kulesza PJ. Phosphomolybdate-modified multi-walled carbon nanotubes as effective mediating systems for electrocatalytic reduction of bromate. Anal Chim Acta 2008; 631:153-60. [PMID: 19084620 DOI: 10.1016/j.aca.2008.10.031] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2008] [Revised: 10/03/2008] [Accepted: 10/13/2008] [Indexed: 11/26/2022]
Abstract
Electrocatalytic properties (towards reduction of bromate in 0.5moldm(-3) H(2)SO(4)) of multi-walled carbon nanotubes (CNTs) modified with phosphododecamolybdate (PMo(12)) monolayers have been diagnosed using cyclic voltammetry and amperometry. The ability of negatively charged PMo(12)-modified CNTs to attract electrostatically ultra-thin, positively charged conducting polymer (PEDOT or polypyrrole) structures is explored to grow in controlled manner hybrid organic-inorganic network electrocatalytic films. Due to the presence of three-dimensionally distributed CNTs, the films' conductivity and porosity are improved. The hybrid systems utilizing polypyrrole, rather than PEDOT, have produced fairly higher bromate electroreduction catalytic currents. Comparison is also made to Nafion-stabilized dispersion of PMo(12)-modified CNTs inks. The latter system is characterized by good stability and relatively the highest sensitivities with respect to bromate concentration.
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Affiliation(s)
- Magdalena Skunik
- Department of Chemistry, University of Warsaw, Pasteura 1, PL-02-093 Warsaw, Poland
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Electrocatalytic reduction of NAD+ at glassy carbon electrode modified with single-walled carbon nanotubes and Ru(III) complexes. J Solid State Electrochem 2008. [DOI: 10.1007/s10008-008-0583-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Salimi A, Kavosi B, Babaei A, Hallaj R. Electrosorption of Os(III)-complex at single-wall carbon nanotubes immobilized on a glassy carbon electrode: Application to nanomolar detection of bromate, periodate and iodate. Anal Chim Acta 2008; 618:43-53. [DOI: 10.1016/j.aca.2008.04.047] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2008] [Revised: 04/16/2008] [Accepted: 04/22/2008] [Indexed: 10/22/2022]
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Salimi A, MamKhezri H, Hallaj R, Zandi S. Modification of glassy carbon electrode with multi-walled carbon nanotubes and iron(III)-porphyrin film: Application to chlorate, bromate and iodate detection. Electrochim Acta 2007. [DOI: 10.1016/j.electacta.2007.03.046] [Citation(s) in RCA: 88] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Tian A, Han Z, Peng J, Zhai J, Zhao Y. Inorganic-organic Microporous Solid of Wells-Dawson Type Polyoxometalate: Synthesis, Characterization, and Electrochemical Properties. Z Anorg Allg Chem 2007. [DOI: 10.1002/zaac.200600320] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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