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Omer S, Ullah MS, Shah SAA, Idrees R, Saeed S. Preparation of additive free tungsten trioxide thin films using spin-coating method for electrochrochemical applications. APPLIED NANOSCIENCE 2023. [DOI: 10.1007/s13204-023-02790-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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2
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Solid State Electrochemical Behaviour of Porphine in Aqueous Media. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.117123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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3
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Alasağ Ö, Alpat Ş, Kilinc Alpat S. Voltammetric Determination of Copper by Biosorption‐based Mesorhizobium opportonistum Modified Microbial Biosensor. ELECTROANAL 2022. [DOI: 10.1002/elan.202200038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Son J, Buck EC, Riechers SL, Tripathi S, Strange LE, Engelhard MH, Yu XY. Studying Corrosion Using Miniaturized Particle Attached Working Electrodes and the Nafion Membrane. MICROMACHINES 2021; 12:mi12111414. [PMID: 34832825 PMCID: PMC8618753 DOI: 10.3390/mi12111414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 11/10/2021] [Accepted: 11/11/2021] [Indexed: 11/16/2022]
Abstract
We developed a new approach to attach particles onto a conductive layer as a working electrode (WE) in a microfluidic electrochemical cell with three electrodes. Nafion, an efficient proton transfer molecule, is used to form a thin protection layer to secure particle electrodes. Spin coating is used to develop a thin and even layer of Nafion membrane. The effects of Nafion (5 wt% 20 wt%) and spinning rates were evaluated using multiple sets of replicates. The electrochemical performance of various devices was demonstrated. Additionally, the electrochemical performance of the devices is used to select and optimize fabrication conditions. The results show that a higher spinning rate and a lower Nafion concentration (5 wt%) induce a better performance, using cerium oxide (CeO2) particles as a testing model. The WE surfaces were characterized using atomic force microscopy (AFM), scanning electron microscopy-focused ion beam (SEM-FIB), time-of-flight secondary ion mass spectrometry (ToF-SIMS), and X-ray photoelectron spectroscopy (XPS). The comparison between the pristine and corroded WE surfaces shows that Nafion is redistributed after potential is applied. Our results verify that Nafion membrane offers a reliable means to secure particles onto electrodes. Furthermore, the electrochemical performance is reliable and reproducible. Thus, this approach provides a new way to study more complex and challenging particles, such as uranium oxide, in the future.
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Affiliation(s)
- Jiyoung Son
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA; (J.S.); (E.C.B.); (S.L.R.); (S.T.); (L.E.S.)
| | - Edgar C. Buck
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA; (J.S.); (E.C.B.); (S.L.R.); (S.T.); (L.E.S.)
| | - Shawn L. Riechers
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA; (J.S.); (E.C.B.); (S.L.R.); (S.T.); (L.E.S.)
| | - Shalini Tripathi
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA; (J.S.); (E.C.B.); (S.L.R.); (S.T.); (L.E.S.)
| | - Lyndi E. Strange
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA; (J.S.); (E.C.B.); (S.L.R.); (S.T.); (L.E.S.)
| | - Mark H. Engelhard
- Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA 99354, USA;
| | - Xiao-Ying Yu
- Energy and Environment Directorate, Pacific Northwest National Laboratory, Richland, WA 99354, USA; (J.S.); (E.C.B.); (S.L.R.); (S.T.); (L.E.S.)
- Correspondence: ; Tel.: +1-509-372-4524
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Electrochemical analysis of flubendiamide in water and white rice using clay microparticles supported on pencil electrode. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106486] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Stamping Nanoparticles onto the Electrode for Rapid Electrochemical Analysis in Microfluidics. MICROMACHINES 2021; 12:mi12010060. [PMID: 33419157 PMCID: PMC7825540 DOI: 10.3390/mi12010060] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 12/27/2020] [Accepted: 01/04/2021] [Indexed: 11/16/2022]
Abstract
Electrochemical analysis is an efficient way to study various materials. However, nanoparticles are challenging due to the difficulty in fabricating a uniform electrode containing nanoparticles. We developed novel approaches to incorporate nanoparticles as a working electrode (WE) in a three-electrode microfluidic electrochemical cell. Specifically, conductive epoxy was used as a medium for direct application of nanoparticles onto the electrode surface. Three approaches in this work were illustrated, including sequence stamping, mix stamping, and droplet stamping. Shadow masking was used to form the conductive structure in the WE surface on a thin silicon nitride (SiN) membrane. Two types of nanomaterials, namely cerium oxide (CeO2) and graphite, were chosen as representative nanoparticles. The as-fabricated electrodes with attached particles were characterized using atomic force microscopy (AFM) and time-of-flight secondary ion mass spectrometry (ToF-SIMS). Electrochemical analysis was performed to verify the feasibility of these nanoparticles as electrodes. Nanomaterials can be quickly assessed for their electrochemical properties using these new electrode fabrication methods in a microfluidic cell, offering a passport for rapid nanomaterial electrochemical analysis in the future.
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Skitał PM, Sanecki PT, Saletnik D. The modeling of simultaneous three metals codeposition investigated by cyclic voltammetry. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114698] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Varini M, Ko JY, Klett M, Ekström H, Lindbergh G. Electrochemical techniques for characterizing LiNi Mn Co 1−x−yO2 battery electrodes. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.136887] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Impact of single vs. blended functional electrolyte additives on interphase formation and overall lithium ion battery performance. J Solid State Electrochem 2020. [DOI: 10.1007/s10008-020-04781-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
AbstractTwo functional high-voltage additives, namely 2-(2,2,3,3,3-pentafluoropropoxy)-1,3,2-dioxaphospholane (PFPOEPi) and 1-methyl-3,5-bis(trifluoromethyl)-1H-pyrazole (MBTFMP) were combined as functional additive mixture in organic carbonate–based electrolyte formulation for high-voltage lithium battery application. Their impact on the overall performance in NMC111 cathode-based cells was compared with the single-additive–containing electrolyte counterpart. The obtained results point to similar cycling performance of the additive mixture containing electrolyte formulation compared with the MBTFMP-containing cells, whereas the single PFPOEPi-containing cells displayed the best cycling performance in NMC111||graphite cells. With regard to the cathode electrolyte interphase (CEI), characterized and analyzed by means of scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS), both the MBTFMP and the PFPOEPi functional additives decompose on the NMC111 surface in single-additive–containing electrolyte formulations. However, the thickness of the CEI formed in the additive mixture–containing electrolyte formulation is determined by the MBTFMP additive, whereas the PFPOEPi additive impacts a change in the composition of the CEI. Furthermore, the MBTFMP additive decomposes prior to the PFPOEPi and, therefore, dominates the cycling performance of NMC111||graphite cells containing functional additive mixture–based electrolyte. This systematic approach allows us to understand the synergistic impact of each functional additive in an electrolyte formulation containing an additive mixture and helps to identify the right additive combination for advanced electrolyte formulation as well as to elucidate whether the single-additive or the additive mixture approach is more effective for the development of advanced functional electrolytes for lithium-based cell chemistries.
Graphical abstract
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Díaz-Cruz JM, Serrano N, Pérez-Ràfols C, Ariño C, Esteban M. Electroanalysis from the past to the twenty-first century: challenges and perspectives. J Solid State Electrochem 2020; 24:2653-2661. [PMID: 32837295 PMCID: PMC7306008 DOI: 10.1007/s10008-020-04733-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 06/15/2020] [Accepted: 06/16/2020] [Indexed: 12/14/2022]
Abstract
A personal mini-review is presented on the history of electroanalysis and on their present achievements and future challenges. The manuscript is written from the subjective view of two generations of electroanalytical chemists that have witnessed for many years the evolution of this discipline.
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Affiliation(s)
- José Manuel Díaz-Cruz
- Department of Chemical Engineering and Analytical Chemistry, University of Barcelona, Martí i Franquès 1-11, E08028 Barcelona, Spain
- Water Research Institute (IdRA) of the University of Barcelona, Barcelona, Spain
| | - Núria Serrano
- Department of Chemical Engineering and Analytical Chemistry, University of Barcelona, Martí i Franquès 1-11, E08028 Barcelona, Spain
- Water Research Institute (IdRA) of the University of Barcelona, Barcelona, Spain
| | - Clara Pérez-Ràfols
- Department of Chemical Engineering and Analytical Chemistry, University of Barcelona, Martí i Franquès 1-11, E08028 Barcelona, Spain
- Department of Chemistry, School of Engineering Science in Chemistry, Biochemistry and Health, KTH Royal Institute of Technology, Teknikringen 30, SE-10044 Stockholm, Sweden
| | - Cristina Ariño
- Department of Chemical Engineering and Analytical Chemistry, University of Barcelona, Martí i Franquès 1-11, E08028 Barcelona, Spain
- Water Research Institute (IdRA) of the University of Barcelona, Barcelona, Spain
| | - Miquel Esteban
- Department of Chemical Engineering and Analytical Chemistry, University of Barcelona, Martí i Franquès 1-11, E08028 Barcelona, Spain
- Water Research Institute (IdRA) of the University of Barcelona, Barcelona, Spain
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da Silveira GD, Di Turo F, Dias D, da Silva JAF. Electrochemical analysis of organic compounds in solid-state: applications of voltammetry of immobilized microparticles in bioanalysis and cultural heritage science. J Solid State Electrochem 2020. [DOI: 10.1007/s10008-020-04720-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Doménech-Carbó A, Dias D, Doménech-Carbó MT. Cation and anion electrochemically assisted solid-state transformations of malachite green. Phys Chem Chem Phys 2019; 22:1502-1510. [PMID: 31872822 DOI: 10.1039/c9cp05835d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The possibility of the electrochemical promotion of different solid-to-solid transformations including the performance of successive cation and anion insertion processes has been tested using malachite green, a triphenylmethane dye, in contact with aqueous NaCl electrolyte. Electrochemical data using the voltammetry of microparticles methodology reveal significant differences with the solution phase electrochemistry of the dye. Voltammetric data, combined with atomic force microscopy, focusing ion beam-field emission scanning electron microscopy, and high-resolution field emission scanning electron microscopy permit characterization of the oxidative dissolution, oxidation with anion insertion, reduction with cation insertion and reduction with anion issue processes, whose thermochemical aspects, involving separate ion and electron transport contributions, are discussed.
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Affiliation(s)
- Antonio Doménech-Carbó
- Departament de Química Analítica, Universitat de València, Dr Moliner, 50, 46100 Burjassot, València, Spain.
| | - Daiane Dias
- Laboratório de Eletro-Espectro Analítica (LEEA), Escola de Química e Alimentos, Universidade Federal do Rio Grande, Av. Itália, km 8, Rio Grande, 96203-900, RS, Brazil
| | - María Teresa Doménech-Carbó
- Institut de Restauració del Patrimoni, Universitat Politècnica de València, Camí de Vera 14, 46022, València, Spain
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Abstract
With water providing a highly favored solution environment for industrial processes (and in biological processes), it is interesting to develop water-based electrolysis processes for the synthesis and conversion of organic and biomass-based molecules. Molecules with low solubility in aqueous media can be dispersed/solubilized (i) by physical dispersion tools (e.g., milling, power ultrasound, or high-shear ultraturrax processing), (ii) in some cases by pressurization/supersaturation (e.g., for gases), (iii) by adding cosolvents or "carriers" such as chremophor EL, or (iv) by adding surfactants to generate micelles, microemulsions, and/or stabilized biphasic conditions. This Account examines and compares methodologies to bring the dispersed or multiphase system into contact with an electrode. Both the microscopic process based on individual particle impact and the overall electro-organic transformation are of interest. Distinct mechanistic cases for multiphase redox processes are considered. Most traditional electro-organic transformations are performed in homogeneous solution with reagents, products, electrolyte, and possibly mediators or redox catalysts all in the same (usually organic) solution phase. This may lead to challenges in the product separation step and in the reuse of solvents and electrolytes. When aqueous electrolyte media are used, reagents and products (or even the electrolyte) may be present as microdroplets or nanoparticles. Redox transformations then occur during interfacial "collisions" under multiphase conditions or within a reaction layer when a redox mediator is present. Benefits of this approach can be (i) the use of a highly conducting aqueous electrolyte, (ii) simple separation of products and reuse of the electrolyte, (iii) phase-transfer conditions in redox catalysis, (iv) new reaction pathways, and (v) improved sustainability. In some cases, a surface phase or phase boundary processes can lead to interesting changes in reaction pathways. Controlling the reaction zone within the multiphase redox system poses a challenge, and methods based on microchannel flow reactors have been developed to provide a higher degree of control. However, detrimental effects in microchannel systems are also observed, in particular for limited current densities (which can be very low in microchannel multiphase flow) or in the development of technical solutions for scale-up of multiphase redox transformations. This Account describes physical approaches (and reactor designs) to bring multiphase redox systems into effective contact with the electrode surface as well as cases of important electro-organic multiphase transformations. Mechanistic cases considered are "impacts" by microdroplets or particles at the electrode, effects of dissolved intermediates or redox mediators, and effects of dissolved redox catalysts. These mechanistic cases are discussed for important multiphase transformations for gaseous, liquid, and solid dispersed phases. Processes based on mesoporous membranes and hydrogen-permeable palladium membranes are discussed.
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Affiliation(s)
- Frank Marken
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, U.K
| | - Jay D. Wadhawan
- School of Engineering, University of Hull, Cottingham Road, Kingston upon Hull, North Humberside HU6 7RX, U.K
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Voltammetric monitoring of a solid-liquid phase transition in N,N,N′,N′-tetraoctyl-2,6-diamino-9,10-anthraquinone (TODAQ). J Solid State Electrochem 2019. [DOI: 10.1007/s10008-019-04447-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
AbstractExploratory experiments on effects from a phase transition are reported for a low-melting microcrystalline anthraquinone (N,N,N′,N′-tetraoctyl-2,6-diamino-9,10-anthraquinone or TODAQ). Data for the solid-liquid phase transition are obtained by differential scanning calorimetry and then compared to data obtained by voltammetry. In preliminary electrochemical measurements, microcrystal deposits on a basal plane pyrolytic graphite electrode are shown to undergo a solid-state 2-electron 2-proton reduction in contact to aqueous 0.1 M HClO4 with a midpoint potential Emid,solid = − 0.24 V vs. SCE. The reduction mechanism is proposed to be limited mainly by the triple phase boundary line and some transport of TODAQ molecules towards the electrode surface for both solid and melt. A change in the apparent activation energy for this reduction is observed at 69 °C, leading to an enhanced increase in reduction current with midpoint potential Emid,liquid = − 0.36 V vs. SCE. A change of TODAQ transport along the crystal surface for solid microcrystalline material (for the solid) to diffusion within molten microdroplets (for the liquid) is proposed. Upon cooling, a transition at 60 °C back to a higher apparent activation energy is seen consistent with re-solidification of the molten phase at the electrode surface. Differential scanning calorimetry data for solid TODAQ dry and for TODAQ in contact to aqueous 0.1 M HClO4 confirm these transitions.
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Affiliation(s)
- Lee J. Hubble
- Department of NanoEngineeringUniversity of California San Diego La Jolla, CA 92093 USA
- CSIRO Manufacturing Lindfield, New South Wales 2070 Australia
| | - Joseph Wang
- Department of NanoEngineeringUniversity of California San Diego La Jolla, CA 92093 USA
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Mahajan A, Bhattacharya SK, Rochat S, Burrows AD, Fletcher PJ, Rong Y, Dalton AB, McKeown NB, Marken F. Polymer of Intrinsic Microporosity (PIM‐7) Coating Affects Triphasic Palladium Electrocatalysis. ChemElectroChem 2018. [DOI: 10.1002/celc.201801359] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Ankita Mahajan
- Department of ChemistryUniversity of Bath Claverton Down BA2 7AY UK
- Physical Chemistry Section Department of ChemistryJadavpur University Kolkata 700032 India
| | - Swapan K. Bhattacharya
- Physical Chemistry Section Department of ChemistryJadavpur University Kolkata 700032 India
| | - Sébastien Rochat
- Department of ChemistryUniversity of Bath Claverton Down BA2 7AY UK
| | | | - Philip J. Fletcher
- Materials and Chemical Characterisation Facility (MC2)University of Bath Claverton Down BA2 7AY UK
| | - Yuanyang Rong
- School of Physics and AstronomyUniversity of Sussex Brighton BN1 9RH UK
| | - Alan B. Dalton
- School of Physics and AstronomyUniversity of Sussex Brighton BN1 9RH UK
| | - Neil B. McKeown
- School of ChemistryUniversity of Edinburgh Joseph Black Building West Mains Road Edinburgh Scotland EH9 3JJ, UK
| | - Frank Marken
- Department of ChemistryUniversity of Bath Claverton Down BA2 7AY UK
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Del Hierro I, Gómez-Ruiz S, Pérez Y, Cruz P, Prashar S, Fajardo M. Mesoporous SBA-15 modified with titanocene complexes and ionic liquids: interactions with DNA and other molecules of biological interest studied by solid state electrochemical techniques. Dalton Trans 2018; 47:12914-12932. [PMID: 30131980 DOI: 10.1039/c8dt02011f] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The immobilization of two titanocene complexes on SBA-15 has been accomplished following post-synthetic procedures. The ionic liquid, 1-methyl-3-[(triethoxysilyl)propyl]imidazolium chloride, has also been incorporated into the titanium containing materials to determine its influence on the interaction with molecules of biological interest. Cyclic voltammetry has been used to study the influence of the ionic liquid on the mechanism of reduction of titanocene derivatives. The interaction of titanocene and titanocene/ionic liquid-containing mesoporous silica SBA-15 materials, with molecules of biological interest associated with important processes of metallodrug action against cancer cells, has been studied. Thus, we have carried out hydrolysis experiments on the materials functionalized with titanocene derivatives in physiological media to determine their stability and the interaction with serum/transport proteins such as transferrin and BSA and with target molecules such as guanosine, single-stranded DNA and double-stranded DNA by means of solid state voltammetry techniques. A qualitative analysis of the data based on peak current and reduction potential value changes of the couple Ti(iv)/Ti(iii) in the presence of biomolecules at physiological pH, has revealed that grafted titanocene complexes show higher affinity for serum/transport proteins than for nucleic acids, indicating that the transport steps to the cells may be easier than the subsequent attack on DNA.
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Affiliation(s)
- Isabel Del Hierro
- Departamento de Biología y Geología, Física y Química Inorgánica, ESCET, Universidad Rey Juan Carlos, Calle Tulipán S/N, E-28933 Móstoles (Madrid), Spain.
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Doménech-Carbó A, Doménech-Carbó MT. Electroanalytical techniques in archaeological and art conservation. PURE APPL CHEM 2017. [DOI: 10.1515/pac-2017-0508] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The application of electrochemical techniques for obtaining analytical information of interest in the fields of archaeometry, conservation and restoration of cultural heritage goods is reviewed. Focused on voltammetry of immobilised particles and electrochemical impedance spectroscopy techniques, electrochemical measurements offer valuable information for identifying and quantifying components, tracing provenances and manufacturing techniques and provide new tools for authentication and dating.
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Affiliation(s)
- Antonio Doménech-Carbó
- Departament de Química Analítica , Universitat de València , Dr. Moliner, 50, 46100 Burjassot (València) , Spain
| | - María Teresa Doménech-Carbó
- Institut de Restauració del Patrimoni , Universitat Politècnica de València , Camí de Vera 14, 46022, València , Spain
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Synthesis of PVDF/CNT and their functionalized composites for studying their electrical properties to analyze their applicability in actuation & sensing. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2016.09.007] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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The Development of Fine Microgram Powder Electrode System and Its Application in the Analysis of Chalcopyrite Leaching Behavior. MINERALS 2016. [DOI: 10.3390/min6040103] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Novak Jovanović I, Čižmek L, Komorsky-Lovrić Š. Electrochemistry-based determination of pungency level of hot peppers using the voltammetry of microparticles. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.04.066] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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Sander M, Hofstetter TB, Gorski CA. Electrochemical analyses of redox-active iron minerals: a review of nonmediated and mediated approaches. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2015; 49:5862-78. [PMID: 25856208 DOI: 10.1021/acs.est.5b00006] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Redox-active minerals are ubiquitous in the environment and are involved in numerous electron transfer reactions that significantly affect biogeochemical processes and cycles as well as pollutant dynamics. As a consequence, research in different scientific disciplines is devoted to elucidating the redox properties and reactivities of minerals. This review focuses on the characterization of mineral redox properties using electrochemical approaches from an applied (bio)geochemical and environmental analytical chemistry perspective. Establishing redox equilibria between the minerals and working electrodes is a major challenge in electrochemical measurements, which we discuss in an overview of traditional electrochemical techniques. These issues can be overcome with mediated electrochemical analyses in which dissolved redox mediators are used to increase the rate of electron transfer and to facilitate redox equilibration between working electrodes and minerals in both amperometric and potentiometric measurements. Using experimental data on an iron-bearing clay mineral, we illustrate how mediated electrochemical analyses can be employed to derive important thermodynamic and kinetic data on electron transfer to and from structural iron. We summarize anticipated methodological advancements that will further contribute to advance an improved understanding of electron transfer to and from minerals in environmentally relevant redox processes.
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Affiliation(s)
- Michael Sander
- †Department of Environmental Systems Science, Institute of Biogeochemistry and Pollutant Dynamics, Environmental Chemistry, Swiss Federal Institute of Technology (ETH), Universitätstrasse 16, 8092 Zurich, Switzerland
| | - Thomas B Hofstetter
- ‡Environmental Chemistry, Swiss Federal Institute of Aquatic Science and Technology (Eawag), Ueberlandstrasse 133,8600 Duebendorf, Switzerland
| | - Christopher A Gorski
- §Civil and Environmental Engineering, The Pennsylvania State University, 212 Sackett Building, University Park, Pennsylvania 16802-1408, United States
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Gholivand MB, Mohammadi-Behzad L, Paimard G, Gholivand K, Ebrahimi Valmoozi AA. Electrochemical characterization of some bisphosphoramidates spiked carbon paste electrodes and their applications in DNA sensing. J Electroanal Chem (Lausanne) 2015. [DOI: 10.1016/j.jelechem.2015.01.022] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Thomas A, Vikraman AE, Thomas D, Kumar KG. Voltammetric Sensor for the Determination of TBHQ in Coconut Oil. FOOD ANAL METHOD 2015. [DOI: 10.1007/s12161-015-0092-z] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Theoretical scenarios for the electrochemistry of porous silicate-based materials: an overview. J Solid State Electrochem 2014. [DOI: 10.1007/s10008-014-2690-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Niu Y, Sun F, Xu Y, Cong Z, Wang E. Applications of electrochemical techniques in mineral analysis. Talanta 2014; 127:211-8. [DOI: 10.1016/j.talanta.2014.03.072] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2013] [Revised: 03/25/2014] [Accepted: 03/29/2014] [Indexed: 11/28/2022]
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Skitał PM, Sanecki PT, Gibała K. The description of the copper deposition/dissolution process in ammonia buffer with the application of mathematical two-plate model. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.06.126] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Herrera G, Montoya N, Doménech-Carbó A, Alarcón J. Synthesis, characterization and electrochemical properties of iron-zirconia solid solution nanoparticles prepared using a sol-gel technique. Phys Chem Chem Phys 2014; 15:19312-21. [PMID: 24121534 DOI: 10.1039/c3cp53216j] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The range of compositions and temperatures at which single-phase tetragonal and monoclinic Fe-containing zirconia nanoparticles are stable is reported. Both types of iron-doped zirconia particles were synthesized by annealing dried gels FexZr1-xO2, with nominal compositions in the range 0 ≤ x ≤ 0.15, over the range of temperatures between 400 °C and 1300 °C. Monophasic crystalline specimens of Fe-ZrO2 solid solutions were characterized by different techniques including X-ray powder diffraction (XRD), infrared and Raman spectroscopies (IR and Raman), and transmission electron microscopy (TEM). Energy gaps were estimated from diffuse reflectance ultraviolet-visible spectra (DRUV-Vis) and compared with those obtained from electrochemical data. Upon increasing the amount of iron in both types of iron-containing zirconia-based structures the energy gaps slightly lowered. The electrochemical properties of those solid solutions obtained using the voltammetry of microparticles (VPM) technique indicated the presence of a small portion of iron as Fe(2+) in both types of crystalline Fe-doped ZrO2. Electrochemical data suggest that the monoclinic solid solutions provide a particularly high accessibility for promoting catalytic processes such as electrochemical oxygen reduction.
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Affiliation(s)
- G Herrera
- Department of Inorganic Chemistry, C/Doctor Moliner 50, 46100 Burjasot, Valencia, Spain.
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Murugappan K, Silvester DS, Chaudhary D, Arrigan DWM. Electrochemical Characterization of an Oleyl-coated Magnetite Nanoparticle-Modified Electrode. ChemElectroChem 2014. [DOI: 10.1002/celc.201402012] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Lytvynenko AS, Kolotilov SV, Kiskin MA, Cador O, Golhen S, Aleksandrov GG, Mishura AM, Titov VE, Ouahab L, Eremenko IL, Novotortsev VM. Redox-active porous coordination polymers prepared by trinuclear heterometallic pivalate linking with the redox-active nickel(II) complex: synthesis, structure, magnetic and redox properties, and electrocatalytic activity in organic compound dehalogenation in heterogeneous medium. Inorg Chem 2014; 53:4970-9. [PMID: 24779588 DOI: 10.1021/ic403167m] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Linking of the trinuclear pivalate fragment Fe2CoO(Piv)6 by the redox-active bridge Ni(L)2 (compound 1; LH is Schiff base from hydrazide of 4-pyridinecarboxylic acid and 2-pyridinecarbaldehyde, Piv(-) = pivalate) led to formation of a new porous coordination polymer (PCP) {Fe2CoO(Piv)6}{Ni(L)2}1.5 (2). X-ray structures of 1 and 2 were determined. A crystal lattice of compound 2 is built from stacked 2D layers; the Ni(L)2 units can be considered as bridges, which bind two Fe2CoO(Piv)6 units. In desolvated form, 2 possesses a porous crystal lattice (SBET = 50 m(2) g(-1), VDR = 0.017 cm(3) g(-1) estimated from N2 sorption at 78 K). At 298 K, 2 absorbed a significant quantity of methanol (up to 0.3 cm(3) g(-1)) and chloroform. Temperature dependence of molar magnetic susceptibility of 2 could be fitted as superposition of χMT of Fe2CoO(Piv)6 and Ni(L)2 units, possible interactions between them were taken into account using molecular field model. In turn, magnetic properties of the Fe2CoO(Piv)6 unit were fitted using two models, one of which directly took into account a spin-orbit coupling of Co(II), and in the second model the spin-orbit coupling of Co(II) was approximated as zero-field splitting. Electrochemical and electrocatalytic properties of 2 were studied by cyclic voltammetry in suspension and compared with electrochemical and electrocatalytic properties of a soluble analogue 1. A catalytic effect was determined by analysis of the catalytic current dependency on concentrations of the substrate. Compound 1 possessed electrocatalytic activity in organic halide dehalogenation, and such activity was preserved for the Ni(L)2 units, incorporated into the framework of 2. In addition, a new property occurred in the case of 2: the catalytic activity of PCP depended on its sorption capacity with respect to the substrate. In contrast to homogeneous catalysts, usage of solid PCPs may allow selectivity due to porous structure and simplify separation of product.
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Affiliation(s)
- A S Lytvynenko
- L. V. Pisarzhevskii Institute of Physical Chemistry of the National Academy of Sciences of the Ukraine , Prospekt Nauki 31, Kiev 03028, Ukraine
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Nafady A, Al-Qahtani NJ, Al-Farhan KA, Bhargava S, Bond AM. Synthesis and characterization of microstructured sheets of semiconducting Ca[TCNQ]2 via redox-driven solid-solid phase transformation of TCNQ microcrystals. J Solid State Electrochem 2014. [DOI: 10.1007/s10008-014-2379-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Reprint of proton uptake vs. redox driven release from metal–organic-frameworks: Alizarin red S reactivity in UMCM-1. J Electroanal Chem (Lausanne) 2013. [DOI: 10.1016/j.jelechem.2013.08.019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Aguilar-Vargas V, S. Valente J, González I. Electrochemical characterization of carbon paste electrodes modified with MgZnGa and ZnGaAl hydrotalcite-like compounds. J Solid State Electrochem 2013. [DOI: 10.1007/s10008-013-2222-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Pikna L, Kovacova Z, Hezelova M, Trnkova L. Anodic dissolution of iron microparticles in chloride-containing acetate buffer electrolytes studied by elimination voltammetry. J Solid State Electrochem 2013. [DOI: 10.1007/s10008-013-2161-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Kinetic and thermodynamic interplay of cation ingress and egress at a TCNQ-modified electrode in contact with aqueous electrolyte mixtures containing Co(II) and Ni(II) cations. J Solid State Electrochem 2013. [DOI: 10.1007/s10008-013-2061-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Conformal transformation of [Co(bdc)(DMF)] (Co-MOF-71, bdc = 1,4-benzenedicarboxylate, DMF = N,N-dimethylformamide) into porous electrochemically active cobalt hydroxide. Electrochem commun 2013. [DOI: 10.1016/j.elecom.2012.10.039] [Citation(s) in RCA: 100] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Screening of pharmacologic adulterant classes in herbal formulations using voltammetry of microparticles. J Pharm Biomed Anal 2013; 74:194-204. [DOI: 10.1016/j.jpba.2012.10.031] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2012] [Revised: 10/24/2012] [Accepted: 10/27/2012] [Indexed: 11/30/2022]
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Ribeiro S, Granadeiro CM, Silva P, Almeida Paz FA, de Biani FF, Cunha-Silva L, Balula SS. An efficient oxidative desulfurization process using terbium-polyoxometalate@MIL-101(Cr). Catal Sci Technol 2013. [DOI: 10.1039/c3cy00287j] [Citation(s) in RCA: 124] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Mapping of corrosion products of highly altered archeological iron using voltammetry of microparticles. Microchem J 2013. [DOI: 10.1016/j.microc.2012.05.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Bandodkar AJ, O'Mahony AM, Ramírez J, Samek IA, Anderson SM, Windmiller JR, Wang J. Solid-state Forensic Finger sensor for integrated sampling and detection of gunshot residue and explosives: towards ‘Lab-on-a-finger’. Analyst 2013; 138:5288-95. [DOI: 10.1039/c3an01179h] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Proton uptake vs. redox driven release from metal–organic-frameworks: Alizarin red S reactivity in UMCM-1. J Electroanal Chem (Lausanne) 2013. [DOI: 10.1016/j.jelechem.2012.11.016] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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