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Sakthinathan I, Köhling J, Wagner V, McCormac T. Layer-by-Layer Construction of a Nanoarchitecture by Polyoxometalates and Polymers: Enhanced Electrochemical Hydrogen Evolution Reaction. ACS APPLIED MATERIALS & INTERFACES 2023; 15:2861-2872. [PMID: 36598164 DOI: 10.1021/acsami.2c17397] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
In this contribution, a nanoarchitectural approach was employed to produce a nanolayer of polyoxometalate (POM) on the surface of a glassy carbon electrode (GCE) to achieve a higher surface area with higher electrocatalytic activity toward the electrochemical hydrogen evolution reaction (HER). To accomplish this, the well-known layer-by-layer (LbL) technique was employed, which involved the alternate adsorption of the POM, Na0.3[N(C4H9)4]7.7 [(Mo3O8)4(O3PC(O)(C3H6NH2CH2C4H3S)PO3)4], abbreviated as [(TBA)Mo12(AleThio)4], and polyethyleneimine (PEI) polymer. This nanolayered electrode exhibited catalytic properties toward the HER in 0.5 M H2SO4 with the resulting polarization curves indicating an increase in the HER activity with the increasing number of POM layers, and the overpotential required for this reaction was lowered by 0.83 V when compared with a bare GCE. The eighth PEI/[(TBA)Mo12(AleThio)4] bilayer exhibited a significantly lower HER overpotential of -0.077 V at a current density of 10 mA cm-2. Surface characterization of the LbL-assembled nanolayers was carried out using X-ray photoelectron spectroscopy, atomic force microscopy, and scanning electron microscopy. We believe that the synergetic effect of the positively charged PEI polymer and the catalytically active molybdate POM is the cause for the successful response to the electrochemical HER.
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Affiliation(s)
- Indherjith Sakthinathan
- Electrochemistry Research Group, Department of Applied Science, Dundalk Institute of Technology, Dublin Road, Dundalk A91K584, County Louth, Ireland
| | - Jonas Köhling
- Physics & Earth Sciences, Jacobs University Bremen gGmbH, Campus Ring 1, 28759 Bremen, Germany
| | - Veit Wagner
- Physics & Earth Sciences, Jacobs University Bremen gGmbH, Campus Ring 1, 28759 Bremen, Germany
| | - Timothy McCormac
- Electrochemistry Research Group, Department of Applied Science, Dundalk Institute of Technology, Dublin Road, Dundalk A91K584, County Louth, Ireland
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Yaqub A, Vagin M, Walsh JJ, Laffir F, Sakthinathan I, McCormac T, Yaqub M. Organic-Inorganic Hybrid Films of the Sulfate Dawson Polyoxometalate, [S 2W 18O 62] 4-, and Polypyrrole for Iodate Electrocatalysis. ACS OMEGA 2022; 7:43381-43389. [PMID: 36506212 PMCID: PMC9730513 DOI: 10.1021/acsomega.2c01287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
The Dawson-type sulfate polyoxometalate (POM) [S2W18O62]4- has successfully been entrapped in polypyrrole (PPy) films on glassy carbon electrode (GCE) surfaces through pyrrole electropolymerization. Films of varying POM loadings (i.e., thickness) were grown by chronocoulometry. Film-coated electrodes were then characterized using voltammetry, revealing POM surface coverages ranging from 1.9 to 11.7 × 10-9 mol·cm-2, and were stable over 100 redox cycles. Typical film morphology and composition were revealed to be porous using atomic force microscopy, scanning electron microscopy, and X-ray photoelectron spectroscopy, and the effects of this porosity on POM redox activity were probed using AC impedance. The hybrid organic-inorganic films exhibited a good electrocatalytic response toward the reduction of iodate with a sensitivity of 0.769 μA·cm-2·μM-1.
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Affiliation(s)
- Amna Yaqub
- University
of Engineering and Technology, G. T. Road, Lahore, Punjab39161, Pakistan
| | - Mikhail Vagin
- Laboratory
of Organic Electronics, Department of Science and Technology, Linköping University, SE-601 74Norrköping, Sweden
| | - James J. Walsh
- School
of Chemical Sciences, Dublin City University, DCU Glasnevin Campus, Dublin9, Ireland
- National
Centre for Sensor Research, Dublin City
University, DCU Glasnevin
Campus, Dublin9, Ireland
| | - Fathima Laffir
- Materials
and Surface Science Institute, University
of Limerick, LimerickV94 T9PX, Ireland
| | - Indherjith Sakthinathan
- Electrochemistry
Research Group, Department of Applied Science, Dundalk Institute of Technology, Dublin Road, DundalkA91 K584, County Louth, Ireland
| | - Timothy McCormac
- Electrochemistry
Research Group, Department of Applied Science, Dundalk Institute of Technology, Dublin Road, DundalkA91 K584, County Louth, Ireland
| | - Mustansara Yaqub
- Interdisciplinary
Research Centre in Biomedical Materials (IRCBM), COMSATS University Islamabad, 1.5 KM Defence Rd, Off Raiwand Road, Lahore, Punjab54000, Pakistan
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Fabre B, Falaise C, Cadot E. Polyoxometalates-Functionalized Electrodes for (Photo)Electrocatalytic Applications: Recent Advances and Prospects. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Bruno Fabre
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226, F-35000 Rennes, France
| | - Clément Falaise
- Institut Lavoisier de Versailles (UMR-CNRS 8180), UVSQ, Université Paris-Saclay, 45 Avenue des Etats-Unis, 78000 Versailles, France
| | - Emmanuel Cadot
- Institut Lavoisier de Versailles (UMR-CNRS 8180), UVSQ, Université Paris-Saclay, 45 Avenue des Etats-Unis, 78000 Versailles, France
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Zhou Y, Bihl F, Bonnefont A, Boudon C, Ruhlmann L, Badets V. Selectivity and efficiency of nitrite electroreduction catalyzed by a series of Keggin polyoxometalates. J Catal 2022. [DOI: 10.1016/j.jcat.2021.11.037] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Kemmegne-Mbouguen JC, Floquet S, Cadot E. Electrochemical properties of the [SiW 10 O 36 (M 2 O 2 E 2 )] 6- Polyoxometalates series (M = Mo(V) or W(V); E = S or O) in aqueous medium: application to the electroanalysis of iodates. CR CHIM 2021. [DOI: 10.5802/crchim.57] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Wang D, Liu L, Jiang J, Chen L, Zhao J. Polyoxometalate-based composite materials in electrochemistry: state-of-the-art progress and future outlook. NANOSCALE 2020; 12:5705-5718. [PMID: 32104820 DOI: 10.1039/c9nr10573e] [Citation(s) in RCA: 83] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Polyoxometalates (POMs) have been developed as a class of promising smart material candidates not only due to their multitudinous architectures but also their good redox activities and outstanding electron and proton transport capacities. Recently, abundant studies on POMs composited with metal nanoparticles (NPs), carbon materials (e.g., carbon nanotubes (CNTs), carbon quantum dots (CQDs), graphene), and conducting polymers or highly-porous framework materials (e.g., MOFs, ZIFs) have been performed and POM-based composite materials (PCMs) undoubtedly show enhanced stability and improved electrochemical performances. Therefore, POMs and PCMs are of increasing interest in electrocatalysis, electrochemical detection and energy-related fields (such as fuel cells, redox flow batteries and so on), thus, developing novel PCMs has long been the key research topic in POM chemistry. This review mainly summarizes some representative advances in PCMs with electrochemical applications in the past ten years, expecting to provide some useful guidance for future research.
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Affiliation(s)
- Dan Wang
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China.
| | - Lulu Liu
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China.
| | - Jun Jiang
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China.
| | - Lijuan Chen
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China.
| | - Junwei Zhao
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China.
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Ali B, McCormac T, Maccato C, Barreca D, Carraro G. Multilayer assemblies of a Cu-phthalocyanine with Dawson type polyoxometalates (POMs) for the electrocatalytic reduction of phosphate. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2019.113770] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Selective removal of nitrate ion using a novel activated carbon composite carbon electrode in capacitive deionization. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2018.11.081] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Nitrate electroreduction on Pt in metatungstate-containing solution. MENDELEEV COMMUNICATIONS 2018. [DOI: 10.1016/j.mencom.2018.05.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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