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Fernández-Vidal J, Hardwick LJ, Cabello G, Attard GA. Effect of alkali-metal cation on oxygen adsorption at Pt single-crystal electrodes in non-aqueous electrolytes. Faraday Discuss 2024; 248:102-118. [PMID: 37753622 DOI: 10.1039/d3fd00084b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/28/2023]
Abstract
The effect of Group 1 alkali-metal cations (Na+, K+, and Cs+) on the oxygen reduction and evolution reactions (ORR and OER) using dimethyl sulfoxide (DMSO)-based electrolytes was investigated. Cyclic voltammetry (CV) utilising different Pt-electrode surfaces (polycrystalline Pt, Pt(111) and Pt(100)) was undertaken to investigate the influence of surface structure upon the ORR and OER. For K+ and Cs+, negligible variation in the CV response (in contrast to Na+) was observed using Pt(111), Pt(100) and Pt(poly) electrodes, consistent with a weak surface-metal/superoxide complex interaction. Indeed, changes in the half-wave potentials (E1/2) and relative intensities of the redox peaks corresponding to superoxy (O2-) and peroxy (O22-) ion formation were consistent with a solution-mediated mechanism for larger cations, such as Cs+. Support for this finding was obtained via in situ shell-isolated nanoparticle-enhanced Raman spectroscopy (SHINERS). During the ORR and in the presence of Cs+, O2- and weakly adsorbed caesium superoxide (CsO2) species were detected. Because DMSO was found to strongly interact with the surface at potentials associated with the ORR, CsO2 was readily displaced at more negative potentials via increased solvent adsorption at the surface. This finding highlights the important impact of the solvent during ORR/OER reactions.
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Affiliation(s)
- Julia Fernández-Vidal
- Stephenson Institute for Renewable Energy, Department of Chemistry, University of Liverpool, Peach Street, L69 7ZF Liverpool, UK
| | - Laurence J Hardwick
- Stephenson Institute for Renewable Energy, Department of Chemistry, University of Liverpool, Peach Street, L69 7ZF Liverpool, UK
| | - Gema Cabello
- Stephenson Institute for Renewable Energy, Department of Chemistry, University of Liverpool, Peach Street, L69 7ZF Liverpool, UK
| | - Gary A Attard
- Department of Physics, University of Liverpool, Crown Street, L69 7ZD Liverpool, UK.
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Chen GQ, Wei K, Hassanvand A, Freeman BD, Kentish SE. Single and binary ion sorption equilibria of monovalent and divalent ions in commercial ion exchange membranes. Water Res 2020; 175:115681. [PMID: 32171098 DOI: 10.1016/j.watres.2020.115681] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Revised: 02/27/2020] [Accepted: 03/01/2020] [Indexed: 06/10/2023]
Abstract
The co-ion and counter-ion sorption of monovalent (Na+, K+, Cl- and NO3-) and divalent ions (Ca2+ and SO42-) in commercial Neosepta ion exchange membranes were systemically studied in both single and binary salt systems. The new generation of Neosepta cation exchange membrane (CSE) showed a significant difference in water uptake and co-ion sorption compared to the earlier generation (CMX). Use of the Manning model confirmed that there were significant differences between these membranes, with the estimated value of the Manning parameter changing from 1.0 ± 0.1 for CMX to 2.8 ± 0.5 for CSE. There were fewer differences between the two Neosepta anion exchange membranes, AMX and ASE. In single salt solutions, potassium sorbed most strongly into the cation exchange membranes, but in binary salt mixtures, calcium dominated due to Donnan exclusion at low concentrations. While these trends were expected, the sorption behaviour in the anion exchange membranes was more complex. The water uptake of both AMX and ASE was shown to be the greatest in Na2SO4 solutions. This strong water uptake was reflected in strong sorption of sulphate ions in a single salt solution. Conversely, in a binary salt mixture with NaCl, sulphate sorption fell significantly at higher concentrations. This was possibly caused by ion pairing within the solution, as well as the strongly hydrophobic nature of styrene in the charged polymer. Water uptake was lowest in NaNO3 solutions, even though sorption of the nitrate ion was comparable to that of chloride in these single salt solutions. In the binary mixture, nitrate was absorbed more strongly than chloride. These results could be due to the low surface charge density of this ion allowing it to bond more strongly with the hydrophobic polymeric backbone at the exclusion of water and other ions.
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Affiliation(s)
- G Q Chen
- Department of Chemical Engineering, The University of Melbourne, Victoria, 3010, Australia
| | - K Wei
- State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing, 100084, PR China
| | - A Hassanvand
- Department of Chemical Engineering, The University of Melbourne, Victoria, 3010, Australia
| | - B D Freeman
- McKetta Department of Chemical Engineering, The University of Texas at Austin, 200 E, Dean Keeton St., Stop C0400, Austin, TX, 78712-1589, United States
| | - S E Kentish
- Department of Chemical Engineering, The University of Melbourne, Victoria, 3010, Australia.
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Affiliation(s)
- Aritri Biswas
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi-502285, Sangareddy, Telangana India
| | - Adyasa Priyadarsini
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi-502285, Sangareddy, Telangana India
| | - Bhabani S. Mallik
- Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi-502285, Sangareddy, Telangana India
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Epsztein R, Shaulsky E, Qin M, Elimelech M. Activation behavior for ion permeation in ion-exchange membranes: Role of ion dehydration in selective transport. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2019.02.009] [Citation(s) in RCA: 84] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Peng J, Lou K, Goenaga G, Zawodzinski T. Transport Properties of Perfluorosulfonate Membranes Ion Exchanged with Cations. ACS Appl Mater Interfaces 2018; 10:38418-38430. [PMID: 30299923 DOI: 10.1021/acsami.8b12403] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In this work, the properties of univalent, that is, Li+, Na+, NH4+, and TEA+ form perfluorosulfonate (PFSA) membranes are studied and compared to the properties of H+ form materials. Properties of these polymer membranes including water uptake, density and conductivity, were investigated for membranes exposed to various water activity levels. The water uptake by the membranes decreased in the order H+ > Li+ > Na+ > NH4+ > TEA+, the same order as the hydration enthalpy (absolute values) of cations. Conductivity values did not strictly follow this order, indicating the importance of different factors besides the hydration level. The partial molar volume of water is derived from the density data as a function of water content for the various membrane forms. This provides further insight into the water, cation, and polymer interactions. Factors that contribute to the conductivity of these membranes include the size of cations, the electrostatic attraction between cations and sulfonate group, and the ion-dipole and hydrogen bonding interactions between cations and water. NH4+ transport is surprisingly high given the low water uptake in NH4+ form membranes. We attribute this to the ability of this ion to develop hydrogen bonded structures that helps to overcome electrostatic interactions with sulfonates. Pulsed-field gradient (PFG) nuclear magnetic resonance (NMR) was used to measure the diffusion coefficient of water in the membranes. FT-IR spectroscopy is employed to probe cation interactions with water and sulfonate sites in the polymer. Overall, the results reflect a competition between the strong electrostatic interaction between cation and sulfonate versus hydration and hydrogen bonding which vary with cation type.
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Affiliation(s)
- Jing Peng
- Department of Chemical & Biomolecular Engineering , University of Tennessee , Knoxville , Tennessee 37996 , United States
| | - Kun Lou
- Bredesen Center for Interdisciplinary Research and Education , University of Tennessee , Knoxville , Tennessee 37996 , United States
| | - Gabriel Goenaga
- Department of Chemical & Biomolecular Engineering , University of Tennessee , Knoxville , Tennessee 37996 , United States
| | - Thomas Zawodzinski
- Department of Chemical & Biomolecular Engineering , University of Tennessee , Knoxville , Tennessee 37996 , United States
- Physical Chemistry of Materials Group , Oak Ridge National Laboratory , Oak Ridge , Tennessee 37831 , United States
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Peng J, Tian M, Cantillo NM, Zawodzinski T. The ion and water transport properties of K+ and Na+ form perfluorosulfonic acid polymer. Electrochim Acta 2018; 282:544-54. [DOI: 10.1016/j.electacta.2018.06.035] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Liu G, Liu J, Sun Z, Zhang Z, Chang L, Wang J, Tao X, Zhang Q. Thermally Induced Reversible Double Phase Transitions in an Organic–Inorganic Hybrid Iodoplumbate C4H12NPbI3 with Symmetry Breaking. Inorg Chem 2016; 55:8025-30. [DOI: 10.1021/acs.inorgchem.6b01143] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Guangfeng Liu
- School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Jie Liu
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, Shandong 250100, China
| | - Zhihua Sun
- Fujian Institute of Research on the Structure
of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Zhenyi Zhang
- Bruker Scientific Technology Co. Ltd, Beijing 100081, China
| | - Lei Chang
- School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Junling Wang
- School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Xutang Tao
- State Key Laboratory of Crystal Materials, Shandong University, Jinan, Shandong 250100, China
| | - Qichun Zhang
- School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore
- Division
of Chemistry and Biological Chemistry, School of Physical and Mathematical
Sciences, Nanyang Technological University, Singapore 637371, Singapore
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Bilibin AY, Shcherbinina TM, Girbasova NV, Lebedev VT, Kulvelis YV, Molchanov VS, Zorin IM. Colloidal properties of polymerizable counterion surfmers solutions based on alkylamino 2-acrylamido-2-methylpropanesulfonates in different solvents. Des Monomers Polym 2016. [DOI: 10.1080/15685551.2016.1169371] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Ghosh S, Chakrabarti R. Molecular dynamics simulation elucidates the preferential binding affinity of sodium and tetramethylammonium ions for tetrameric Nafion unit under aqueous conditions. RSC Adv 2016. [DOI: 10.1039/c6ra21845h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Preferential binding interaction of sodium and tetramethylammonium cations with Nafion pendant and backbone sites respectively.
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Affiliation(s)
- Soumadwip Ghosh
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai – 400076
- India
| | - Rajarshi Chakrabarti
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai – 400076
- India
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Acerce M, Voiry D, Chhowalla M. Metallic 1T phase MoS2 nanosheets as supercapacitor electrode materials. Nat Nanotechnol 2015; 10:313-8. [PMID: 25799518 DOI: 10.1038/nnano.2015.40] [Citation(s) in RCA: 987] [Impact Index Per Article: 109.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Accepted: 02/09/2015] [Indexed: 05/18/2023]
Abstract
Efficient intercalation of ions in layered materials forms the basis of electrochemical energy storage devices such as batteries and capacitors. Recent research has focused on the exfoliation of layered materials and then restacking the two-dimensional exfoliated nanosheets to form electrodes with enhanced electrochemical response. Here, we show that chemically exfoliated nanosheets of MoS2 containing a high concentration of the metallic 1T phase can electrochemically intercalate ions such as H(+), Li(+), Na(+) and K(+) with extraordinary efficiency and achieve capacitance values ranging from ∼400 to ∼700 F cm(-3) in a variety of aqueous electrolytes. We also demonstrate that this material is suitable for high-voltage (3.5 V) operation in non-aqueous organic electrolytes, showing prime volumetric energy and power density values, coulombic efficiencies in excess of 95%, and stability over 5,000 cycles. As we show by X-ray diffraction analysis, these favourable electrochemical properties of 1T MoS2 layers are mainly a result of their hydrophilicity and high electrical conductivity, as well as the ability of the exfoliated layers to dynamically expand and intercalate the various ions.
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Affiliation(s)
- Muharrem Acerce
- Materials Science and Engineering, 607 Taylor Road, Piscataway, New Jersey 08854, USA
| | - Damien Voiry
- Materials Science and Engineering, 607 Taylor Road, Piscataway, New Jersey 08854, USA
| | - Manish Chhowalla
- Materials Science and Engineering, 607 Taylor Road, Piscataway, New Jersey 08854, USA
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Arroniz C, Denis JG, Ironmonger A, Rassias G, Larrosa I. An organic cation as a silver(i) analogue for the arylation of sp2 and sp3 C–H bonds with iodoarenes. Chem Sci 2014. [DOI: 10.1039/c4sc01215a] [Citation(s) in RCA: 90] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A general, cost-effective and sustainable replacement for silver in palladium catalysed direct arylations of C(sp2)–H and C(sp3)–H bonds.
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Affiliation(s)
- Carlos Arroniz
- School of Biological and Chemical Sciences
- Queen Mary University of London
- London, UK
- GlaxoSmithKline Medicines Research Centre
- Stevenage, UK
| | - J. Gabriel Denis
- School of Biological and Chemical Sciences
- Queen Mary University of London
- London, UK
| | | | | | - Igor Larrosa
- School of Biological and Chemical Sciences
- Queen Mary University of London
- London, UK
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Johnson RL, Ohlin CA, Pellegrini K, Burns PC, Casey WH. Dynamics of a Nanometer-Sized Uranyl Cluster in Solution. Angew Chem Int Ed Engl 2013; 125:7612-5. [DOI: 10.1002/ange.201301973] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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14
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Johnson RL, Ohlin CA, Pellegrini K, Burns PC, Casey WH. Dynamics of a Nanometer-Sized Uranyl Cluster in Solution. Angew Chem Int Ed Engl 2013; 52:7464-7. [DOI: 10.1002/anie.201301973] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2013] [Revised: 05/15/2013] [Indexed: 11/10/2022]
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15
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Iyer ESS, Khorwal V, Sundararajan M, Datta A. Intense phototautomer emission of 2-(3′-pyridyl)benzimidazole encapsulated in Nafion membrane. RSC Adv 2013. [DOI: 10.1039/c2ra21070c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
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Villaluenga JPG, Barragán VM, Izquierdo-Gil MA, Godino MP, Seoane B, Ruiz-Bauzá C. Fluid flow modeling in a sulfonated cation-exchange membrane. J Appl Polym Sci 2009. [DOI: 10.1002/app.30757] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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18
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Li X, Brownawell BJ. Analysis of quaternary ammonium compounds in estuarine sediments by LC-ToF-MS: very high positive mass defects of alkylamine ions as powerful diagnostic tools for identification and structural elucidation. Anal Chem 2009; 81:7926-35. [PMID: 19739657 PMCID: PMC3010403 DOI: 10.1021/ac900900y] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A sensitive and robust method of analysis for quaternary ammonium compounds (QACs) in marine sediments is presented. Methods for extraction, sample purification, and HPLC-time-of-flight MS analysis were optimized, providing solutions to problems associated with analysis of QACs, such as dialkyldimethylammonium (DADMAC) and benzalkonium (BAC) compounds experienced previously. Recognized in this study are the exceptionally high positive mass defects characteristic of alkylammonium or protonated alkylamine ions. No alternative and chemically viable elemental formulas exist within 25.2 mDa when the number of double bond equivalents is low, effectively allowing facile discrimination of this compound class in complex mixtures. Accurate mass measurements of diagnostic collision-induced dissociation fragment ions and heavy isotope peaks were obtained and also seen to be uniquely heavy compared to other elemental formulas. The ability to resolve masses of alkylamine fragment ions is much greater than for the molecular ions of BACs and many other chemicals, opening up a range of potential applications. The power of utilizing a combination of approaches is illustrated with the identification of nontargeted DADMAC C8:C8 and C8:C10, two widely used biocides previously unreported in environmental samples. Concentrations of QACs in sewage-impacted estuarine sediments (up to 74 microg/g) were higher than concentrations of other organic contaminants measured in the same or nearby samples, suggesting that further study is needed.
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Affiliation(s)
- Xiaolin Li
- School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, New York 11794-5000
| | - Bruce J. Brownawell
- School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, New York 11794-5000
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20
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Affiliation(s)
- James M. Silva
- General Electric Global Research Center, 1 Research Circle, Niskayuna, New York 12309
| | | | - Donald Novak
- General Electric Global Research Center, 1 Research Circle, Niskayuna, New York 12309
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Villaluenga J, Barragán V, Izquierdo-Gil M, Godino M, Seoane B, Ruiz-Bauzá C. Comparative study of liquid uptake and permeation characteristics of sulfonated cation-exchange membranes in water and methanol. J Memb Sci 2008. [DOI: 10.1016/j.memsci.2008.06.049] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Sodaye S, Agarwal C, Goswami A. Study on multicomponent diffusion of ions in poly(perfluorosulfonated) ion-exchange membrane using radiotracers. J Memb Sci 2008; 314:221-5. [DOI: 10.1016/j.memsci.2008.01.039] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Moore CM, Akers NL, Hill AD, Johnson ZC, Minteer SD. Improving the Environment for Immobilized Dehydrogenase Enzymes by Modifying Nafion with Tetraalkylammonium Bromides. Biomacromolecules 2004; 5:1241-7. [PMID: 15244436 DOI: 10.1021/bm0345256] [Citation(s) in RCA: 167] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Recent research in our group has shown that mixture-casting Nafion with quaternary ammonium bromides can increase the electrochemical flux of redox couples through the membrane and allow for larger redox species to diffuse to the electrode surface. The research has also suggested that when these salts are cast with Nafion micellar pore size is changing. Therefore, it was proposed that the quaternary ammonium salts could be employed to tailor the structure of the Nafion membrane for immobilizing enzymes in the polymer. For cations with a high affinity for the sulfonic acid groups of Nafion, the modified structure of Nafion can also help to stabilize the enzyme and increase activity by providing a protective outer shell and an ideal chemical environment that resists a decrease in pH within the pore structure. This research examines the ability to immobilize dehydrogenase enzymes in Nafion that has been modified with quaternary ammonium bromides. Fluorescence assays, fluorescence microscopy, and cyclic voltammetric studies were employed to analyze the ability to immobilize an enzyme within the membrane, to determine the activity of the immobilized enzyme and to examine the transport of coenzyme within the membrane. Dehydrogenase enzymes immobilized in tetrabutylammonium bromide/Nafion membranes have shown high catalytic activity and enzyme active lifetimes of greater than 45 days. A variety of dehydrogenase enzymes have been successfully immobilized in the membrane, including: alcohol dehydrogenase, aldehyde dehydrogenase, glucose dehydrogenase, and lactic dehydrogenase.
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Affiliation(s)
- Christine M Moore
- Department of Chemistry, Saint Louis University, St. Louis, Missouri 63103, USA
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Affiliation(s)
- Y. Yang
- Department of Chemical Engineering, Tulane University, New Orleans, Louisiana 70115, and Department of Chemical Engineering, Case Western Reserve University, Cleveland, Ohio 44106
| | - P. N. Pintauro
- Department of Chemical Engineering, Tulane University, New Orleans, Louisiana 70115, and Department of Chemical Engineering, Case Western Reserve University, Cleveland, Ohio 44106
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