1
|
Curnow OJ, Senthooran R. Ionic Liquid Keggin Polyoxometallates with the Tris(dihexylamino)cyclopropenium Cation. Polyhedron 2023. [DOI: 10.1016/j.poly.2023.116318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
|
2
|
Gao Y, Choudhari M, Such GK, Ritchie C. Polyoxometalates as chemically and structurally versatile components in self-assembled materials. Chem Sci 2022; 13:2510-2527. [PMID: 35356680 PMCID: PMC8890132 DOI: 10.1039/d1sc05879g] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 12/21/2021] [Indexed: 01/16/2023] Open
Abstract
Polyoxometalates (POMs) are anionic molecular metal oxides with expansive diversity in terms of their composition, structure, nuclearity and charge. Within this vast collection of compounds are dominant structural motifs (POM platforms), that are amenable to significant chemical tuning with minimal perturbation of the inorganic oxide molecular structure. Consequently, this enables the systematic investigation of these compounds as inorganic additives within materials whereby structure and charge can be tuned independently i.e. [PW12O40]3- vs. [SiW12O40]4- while also investigating the impact of varying the charge balancing cations on self-assembly. The rich surface chemistry of POMs also supports their functionalisation by organic components to yield so-called inorganic-organic hybrids which will be the key focus of this perspective. We will introduce the modifications possible for each POM platform, as well as discussing the range of nanoparticles, microparticles and surfaces that have been developed using both surfactant and polymer building blocks. We will also illustrate important examples of POM-hybrids alongside their potential utility in applications such as imaging, therapeutic delivery and energy storage.
Collapse
Affiliation(s)
- Yanting Gao
- School of Chemistry, The University of Melbourne Parkville Victoria 3010 Australia
- School of Chemistry, Monash University Clayton Victoria 3800 Australia
| | - Manjiri Choudhari
- School of Chemistry, Monash University Clayton Victoria 3800 Australia
| | - Georgina K Such
- School of Chemistry, The University of Melbourne Parkville Victoria 3010 Australia
| | - Chris Ritchie
- School of Chemistry, Monash University Clayton Victoria 3800 Australia
| |
Collapse
|
3
|
Li B, Xuan L, Wu L. Polyoxometalate-Containing Supramolecular Gels. Macromol Rapid Commun 2022; 43:e2200019. [PMID: 35102624 DOI: 10.1002/marc.202200019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 01/27/2022] [Indexed: 11/08/2022]
Abstract
Supramolecular gels are important soft materials with various applications, which are fabricated through hydrogen bonding, π-π stacking, electrostatic or host-guest interactions. Introducing functional groups, especially inorganic components, is an efficient strategy to obtain gels with robust architecture and high performance. Polyoxometalates (POMs), as a class of negatively-charged clusters, have defined structures and multiple interaction sites, resulting in their potential as building blocks for constructing POM-containing supramolecular gels. The introduction of POMs into gels not only provides strong driving forces for the formation of gels due to the characteristics of charged cluster and oxygen-rich surface, but also brings new properties sourcing from unique electronic structures of POMs. Though many POM-containing gels have been reported, a comprehensive review is still absent. Herein, the concept of POM-containing gels is discussed, following with the design strategies and driving forces. To better understand the results in the literature, detailed examples, which are classified into several categories based on the types of organic components, are presented to illustrate the gelation process and gel structures. Moreover, applications of POM-containing gels in energy chemistry, sustainable chemistry and other aspects are also reviewed, as well as the future developments of this field. This article is protected by copyright. All rights reserved.
Collapse
Affiliation(s)
- Bao Li
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Luyun Xuan
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Lixin Wu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| |
Collapse
|
4
|
Tomé LC, Porcarelli L, Bara JE, Forsyth M, Mecerreyes D. Emerging iongel materials towards applications in energy and bioelectronics. MATERIALS HORIZONS 2021; 8:3239-3265. [PMID: 34750597 DOI: 10.1039/d1mh01263k] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
In the past two decades, ionic liquids (ILs) have blossomed as versatile task-specific materials with a unique combination of properties, which can be beneficial for a plethora of different applications. The additional need of incorporating ILs into solid devices led to the development of a new class of ionic soft-solid materials, named here iongels. Nowadays, iongels cover a wide range of materials mostly composed of an IL component immobilized within different matrices such as polymers, inorganic networks, biopolymers or inorganic nanoparticles. This review aims at presenting an integrated perspective on the recent progress and advances in this emerging type of material. We provide an analysis of the main families of iongels and highlight the emerging types of these ionic soft materials offering additional properties, such as thermoresponsiveness, self-healing, mixed ionic/electronic properties, and (photo)luminescence, among others. Next, recent trends in additive manufacturing (3D printing) of iongels are presented. Finally, their new applications in the areas of energy, gas separation and (bio)electronics are detailed and discussed in terms of performance, underpinning it to the structural features and processing of iongel materials.
Collapse
Affiliation(s)
- Liliana C Tomé
- POLYMAT, University of the Basque Country UPV/EHU, Avda. Tolosa 72, Donostia-San Sebastian 20018, Gipuzkoa, Spain.
| | - Luca Porcarelli
- POLYMAT, University of the Basque Country UPV/EHU, Avda. Tolosa 72, Donostia-San Sebastian 20018, Gipuzkoa, Spain.
- Institute for Frontier Materials, Deakin University, Geelong, VIC 3217, Australia
| | - Jason E Bara
- University of Alabama, Department of Chemical & Biological Engineering, Tuscaloosa, AL 35487-0203, USA
| | - Maria Forsyth
- POLYMAT, University of the Basque Country UPV/EHU, Avda. Tolosa 72, Donostia-San Sebastian 20018, Gipuzkoa, Spain.
- Institute for Frontier Materials, Deakin University, Geelong, VIC 3217, Australia
- Ikerbasque, Basque Foundation for Science, 48013 Bilbao, Spain
| | - David Mecerreyes
- POLYMAT, University of the Basque Country UPV/EHU, Avda. Tolosa 72, Donostia-San Sebastian 20018, Gipuzkoa, Spain.
- Ikerbasque, Basque Foundation for Science, 48013 Bilbao, Spain
| |
Collapse
|
5
|
Makinde ZO, van der Heijden NJ, Clyde D, Nam S, Brothers PJ, Malmström J, Granville S, Domigan LJ, McGillivray DJ, Williams DE. Geometric Frustration and Long-Range Ordering Induced by Surface Pressure Oscillation in a Langmuir-Blodgett Monolayer of Magnetic Soft Spheres. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:10150-10158. [PMID: 34384020 DOI: 10.1021/acs.langmuir.1c01577] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
As a step toward the bottom-up construction of magnonic systems, this paper demonstrates the use of a large-amplitude surface-pressure annealing technique to generate 2-D order in a Langmuir-Blodgett monolayer of magnetic soft spheres comprising a surfactant-encapsulated polyoxometalate. The films show a distorted square lattice interpreted as due to geometric frustration caused by 2-D confinement between soft walls, one being the air interface and the other the aqueous subphase. Hysteresis and relaxation phenomena in the 2-D layers are suggested to be due to folding and time-dependent interpenetration of surfactant chains.
Collapse
Affiliation(s)
- Zainab O Makinde
- School of Chemical Sciences, The University of Auckland, 23 Symonds St., Auckland 1010, New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology, Victoria University of Wellington, Wellington 6140, New Zealand
| | - Nadine J van der Heijden
- School of Chemical Sciences, The University of Auckland, 23 Symonds St., Auckland 1010, New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology, Victoria University of Wellington, Wellington 6140, New Zealand
| | - Daniel Clyde
- School of Chemical Sciences, The University of Auckland, 23 Symonds St., Auckland 1010, New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology, Victoria University of Wellington, Wellington 6140, New Zealand
| | - Seong Nam
- School of Chemical Sciences, The University of Auckland, 23 Symonds St., Auckland 1010, New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology, Victoria University of Wellington, Wellington 6140, New Zealand
| | - Penelope J Brothers
- School of Chemical Sciences, The University of Auckland, 23 Symonds St., Auckland 1010, New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology, Victoria University of Wellington, Wellington 6140, New Zealand
- Research School of Chemistry, The Australian National University, Canberra ACT 2601, Australia
| | - Jenny Malmström
- MacDiarmid Institute for Advanced Materials and Nanotechnology, Victoria University of Wellington, Wellington 6140, New Zealand
- Department of Chemical and Materials Engineering, The University of Auckland, 20 Symonds St., Auckland 1010, New Zealand
| | - Simon Granville
- MacDiarmid Institute for Advanced Materials and Nanotechnology, Victoria University of Wellington, Wellington 6140, New Zealand
- Robinson Research Institute, Victoria University of Wellington, Wellington 6140, New Zealand
| | - Laura J Domigan
- MacDiarmid Institute for Advanced Materials and Nanotechnology, Victoria University of Wellington, Wellington 6140, New Zealand
- Department of Chemical and Materials Engineering, The University of Auckland, 20 Symonds St., Auckland 1010, New Zealand
| | - Duncan J McGillivray
- School of Chemical Sciences, The University of Auckland, 23 Symonds St., Auckland 1010, New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology, Victoria University of Wellington, Wellington 6140, New Zealand
| | - David E Williams
- School of Chemical Sciences, The University of Auckland, 23 Symonds St., Auckland 1010, New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology, Victoria University of Wellington, Wellington 6140, New Zealand
| |
Collapse
|
6
|
Synthesis, Physical Properties and Application of a Series of New Polyoxometalate-Based Ionic Liquids. Molecules 2021; 26:molecules26020496. [PMID: 33477711 PMCID: PMC7831901 DOI: 10.3390/molecules26020496] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 01/07/2021] [Accepted: 01/08/2021] [Indexed: 11/18/2022] Open
Abstract
This paper deals with the preparation and the characterization of four new ionic liquids resulting from the pairing of various polyoxotungstates or polyoxomolybdates with the cation trihexyltetradecylphosphonium. The physical properties measured by different techniques evidence that the viscosity and the rheological behaviors of such POM-based ionic liquids, POM-ILs, strongly depend on the nature of the POM, especially its charge. Playing on the nature of the POM, we can indeed obtain Newtonian liquids or some much more viscous materials exhibiting characteristics of resins or pseudo-plastics. In a second part of this study, the potentialities of using such materials both as solvent and catalyst for the oxidation of a series of alcohols are presented as proof of concept. This part highlights great differences in strength and selectivity as a function of the POM-IL used. Furthermore, a very simple way to recycle the catalyst is also presented.
Collapse
|
7
|
Sharifi M, Dianat S, Hosseinian A. Electrochemical investigation and amperometry determination iodate based on ionic liquid/polyoxotungstate/P-doped electrochemically reduced graphene oxide multi-component nanocomposite modified glassy carbon electrode. RSC Adv 2021; 11:8993-9007. [PMID: 35423408 PMCID: PMC8695343 DOI: 10.1039/d1ra00845e] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 05/11/2021] [Accepted: 02/22/2021] [Indexed: 12/13/2022] Open
Abstract
A novel modified glassy carbon electrode (GCE) was successfully fabricated with a tetra-component nanocomposite consisting of (1,1′-(1,4-butanediyl)dipyridinium) ionic liquid (bdpy), SiW11O39Ni(H2O) (SiW11Ni) Keggin-type polyoxometalate (POM), and phosphorus-doped electrochemically reduced graphene oxide (P-ERGO) by electrodeposition technique. The (bdpy)SiW11Ni/GO hybrid nanocomposite was synthesized by a one-pot hydrothermal method and characterized by UV-vis absorption, Fourier transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD) analysis, thermogravimetric-differential thermal analysis (TGA/DTA), and transmission electron microscopy (TEM). The morphology, electrochemical performance, and electrocatalysis activity of the nanocomposite modified glassy carbon electrode ((bdpy)SiW11Ni/P-ERGO/GCE) were analyzed by field emission scanning electron microscopy (FE-SEM) coupled with energy-dispersive X-ray spectroscopy (EDS), cyclic voltammetry (CV), square wave voltammetry (SWV), and amperometry, respectively. Under the optimum experimental conditions, the as-prepared sensor showed high sensitivity of 28.1 μA mM−1 and good selectivity for iodate (IO3−) reduction, enabling the detection of IO3− within a linear range of 10–1600 μmol L−1 (R2 = 0.9999) with a limit of detection (LOD) of 0.47 nmol L−1 (S/N = 3). The proposed electrochemical sensor exhibited good reproducibility, and repeatability, high stability, and excellent anti-interference ability, as well as analytical performance in mineral water, tap water, and commercial edible iodized salt which might provide a capable platform for the determination of IO3−. Constructing a sensitive electrochemical sensor based on (bdpy)SiW11Ni/P-ERGO/GCE for IO3− detection at the nanomolar level with noticeable selectivity.![]()
Collapse
Affiliation(s)
- Minoo Sharifi
- Department of Chemistry
- Faculty of Sciences
- University of Hormozgan
- Bandar Abbas 79161-93145
- Iran
| | - Somayeh Dianat
- Department of Chemistry
- Faculty of Sciences
- University of Hormozgan
- Bandar Abbas 79161-93145
- Iran
| | - Amin Hosseinian
- Department of Chemistry
- Faculty of Sciences
- University of Hormozgan
- Bandar Abbas 79161-93145
- Iran
| |
Collapse
|
8
|
Huang Z, Zhang G, Wang L, Song A, Hao J. Cubic Liquid Crystals of Polyoxometalate-Based Ionic Liquids. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:3471-3481. [PMID: 32162927 DOI: 10.1021/acs.langmuir.9b02909] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Thermotropic ionic liquid crystals of polyoxometalate (POM)-based ionic liquids (POM-based ILs), which are formed by a POM, K7PW11O39, and cationic surfactants, tetra-n-alkylammonium bromide ((CnH2n+1)4N+Br-, n = 6 and 7), are first proposed. As a model system, the cubic phase structure of a POM-based IL, {(C7H15)4N+}7PW11O39, was determined to form in a wide range of temperatures, exhibiting good thermostability, excellent mechanical strength, and high viscosity. Furthermore, the lyotropic ionic liquid crystals formed by {(C7H15)4N+}7PW11O39 in solvents such as chloroform or toluene still maintained a cubic structure. These cubic ionic liquid crystals (CILCs) were used as anticorrosion coatings both in acidic and neutral environments. The electrochemical measurements of Cu and Fe surfaces coated by CILCs showed an excellent ability of anticorrosion, indicating that the metals can be perfectly protected by the CILC coatings with high resistance and low capacitance. We assume that the CILCs may serve as barriers to stop oxygen diffusing to metals and interrupt the electron tunnels between the metal surfaces and the electrolyte solutions. Such environmentally friendly CILCs of POMs-based ILs are convenient for coating and removal, being vital to versatile industrial and academic applications.
Collapse
Affiliation(s)
- Zhaohui Huang
- Key Laboratory of Colloid and Interface Chemistry and Key Laboratory of Special Functional Materials (Ministry of Education), Shandong University, Jinan 250100, P. R. China
| | - Geping Zhang
- Key Laboratory of Colloid and Interface Chemistry and Key Laboratory of Special Functional Materials (Ministry of Education), Shandong University, Jinan 250100, P. R. China
| | - Ling Wang
- Key Laboratory of Colloid and Interface Chemistry and Key Laboratory of Special Functional Materials (Ministry of Education), Shandong University, Jinan 250100, P. R. China
| | - Aixin Song
- Key Laboratory of Colloid and Interface Chemistry and Key Laboratory of Special Functional Materials (Ministry of Education), Shandong University, Jinan 250100, P. R. China
| | - Jingcheng Hao
- Key Laboratory of Colloid and Interface Chemistry and Key Laboratory of Special Functional Materials (Ministry of Education), Shandong University, Jinan 250100, P. R. China
- State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, P. R. China
| |
Collapse
|
9
|
Martinetto Y, Pégot B, Roch‐Marchal C, Cottyn‐Boitte B, Floquet S. Designing Functional Polyoxometalate‐Based Ionic Liquid Crystals and Ionic Liquids. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900990] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Yohan Martinetto
- Institut Lavoisier de Versailles, UMR 8180 Université de Versailles St‐Quentin en Yvelines, Université Paris‐Saclay 45 Avenue des Etats‐Unis 78035 Versailles France
- Institut Jean‐Pierre Bourgin, INRA, Agro Paris Tech, CNRS Université Paris Saclay 78000 Versailles France
| | - Bruce Pégot
- Institut Lavoisier de Versailles, UMR 8180 Université de Versailles St‐Quentin en Yvelines, Université Paris‐Saclay 45 Avenue des Etats‐Unis 78035 Versailles France
| | - Catherine Roch‐Marchal
- Institut Lavoisier de Versailles, UMR 8180 Université de Versailles St‐Quentin en Yvelines, Université Paris‐Saclay 45 Avenue des Etats‐Unis 78035 Versailles France
| | - Betty Cottyn‐Boitte
- Institut Jean‐Pierre Bourgin, INRA, Agro Paris Tech, CNRS Université Paris Saclay 78000 Versailles France
| | - Sébastien Floquet
- Institut Lavoisier de Versailles, UMR 8180 Université de Versailles St‐Quentin en Yvelines, Université Paris‐Saclay 45 Avenue des Etats‐Unis 78035 Versailles France
| |
Collapse
|
10
|
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]
|
11
|
Yun TG, Park M, Kim DH, Kim D, Cheong JY, Bae JG, Han SM, Kim ID. All-Transparent Stretchable Electrochromic Supercapacitor Wearable Patch Device. ACS NANO 2019; 13:3141-3150. [PMID: 30779547 DOI: 10.1021/acsnano.8b08560] [Citation(s) in RCA: 101] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Flexible and stretchable electrochromic supercapacitor systems are widely considered as promising multifunctional energy storage devices that eliminate the need for an external power source. Nevertheless, the performance of conventional designs deteriorates significantly as a result of electrode/electrolyte exposure to atmosphere as well as mechanical deformations for the case of flexible systems. In this study, we suggest an all-transparent stretchable electrochromic supercapacitor device with ultrastable performance, which consists of Au/Ag core-shell nanowire-embedded polydimethylsiloxane (PDMS), bistacked WO3 nanotube/PEDOT:PSS, and polyacrylamide (PAAm)-based hydrogel electrolyte. Au/Ag core-shell nanowire-embedded PDMS integrated with PAAm-based hydrogel electrolyte prevents Ag oxidation and dehydration while maintaining ionic and electrical conductivity at high voltage even after 16 days of exposure to ambient conditions and under application of mechanical strains in both tensile and bending conditions. WO3 nanotube/PEDOT:PSS bistacked active materials maintain high electrochemical-electrochromic performance even under mechanical deformations. Maximum specific capacitance of 471.0 F g-1 was obtained with a 92.9% capacity retention even after 50 000 charge-discharge cycles. In addition, high coloration efficiency of 83.9 cm2 C-1 was shown to be due to the dual coloration and pseudocapacitor characteristics of the WO3 nanotube and PEDOT:PSS thin layer.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | - Il-Doo Kim
- Advanced Nanosensor Research Center , KAIST Institute for Nanocentury , Daejeon 305-701 , Republic of Korea
| |
Collapse
|
12
|
Yan J, Wang Z, E Y, He F, Zhang D, Wu Q. Catalytic synthesis of chloroacetates with thermoregulated ionic liquids based on vanadium-substituted polyoxometalate. RSC Adv 2019; 9:8404-8410. [PMID: 35518672 PMCID: PMC9061882 DOI: 10.1039/c8ra10659b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Accepted: 02/09/2019] [Indexed: 01/25/2023] Open
Abstract
A series of polyoxometalate-based ionic liquid (POM-IL) catalysts with functional sulfonic acid groups, [TEAPS]3+nPW12−nVnO40 (n = 1, 2, 3) were synthesized and characterized by nuclear magnetic resonance spectroscopy (NMR), Fourier transform infrared spectrophotometry (FT-IR), UV-Vis spectrophotometry (UV), potentiometric titration and thermogravimetry-differential scanning calorimetry (TG-DSC). The catalytic ability and reusability of the POM-IL catalysts were evaluated on esterification of chloroacetic acid and n-amyl alcohol. The optimum reaction conditions, 0.2 g of the catalyst amount, 10 mL of water carrier, 140 °C of reaction temperature, and 1.2/1 of the molar ratio of alcohol/acid, were obtained by an orthogonal test. [TEAPS]5PW10V2O40 was found to be the best active catalyst with an esterification rate of 98.75% and could be reused five times without significant decrease in activity. The ionic liquid acted as a temperature-responsive catalyst, forming a homogeneous mixture with the reactants at reaction temperature, and could be precipitated and separated from products when the reaction ends at ambient temperature. Therefore, an environmentally friendly and highly efficient approach for the synthesis of chloroacetates is provided. The ionic liquid catalyst [TEAPS]5PW10V2O40 exhibited good activity and reusability in the esterification process owing to its acidity and thermoregulated properties.![]()
Collapse
Affiliation(s)
- Jingsen Yan
- School of Biomedical & Chemical Engineering
- Liaoning Institute of Science and Technology
- Benxi 117004
- P. R. China
| | - Zeqing Wang
- School of Biomedical & Chemical Engineering
- Liaoning Institute of Science and Technology
- Benxi 117004
- P. R. China
| | - Yongsheng E
- School of Biomedical & Chemical Engineering
- Liaoning Institute of Science and Technology
- Benxi 117004
- P. R. China
| | - Fengwei He
- School of Biomedical & Chemical Engineering
- Liaoning Institute of Science and Technology
- Benxi 117004
- P. R. China
| | - Danfeng Zhang
- School of Biomedical & Chemical Engineering
- Liaoning Institute of Science and Technology
- Benxi 117004
- P. R. China
| | - Qingyin Wu
- School of Biomedical & Chemical Engineering
- Liaoning Institute of Science and Technology
- Benxi 117004
- P. R. China
- Department of Chemistry
| |
Collapse
|
13
|
Ai L, Wang Z, He F, Wu Q. Synthesis and conductive performance of polyoxometalate acid salt gel electrolytes. RSC Adv 2018; 8:34116-34120. [PMID: 35548806 PMCID: PMC9086717 DOI: 10.1039/c8ra07160h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Accepted: 09/13/2018] [Indexed: 11/21/2022] Open
Abstract
Two vanadium-substituted polyoxometalate acid salt gel electrolytes, [PyPS]3H4SiW9V3O40 and [PyPS]5H2SiW9V3O40, have been synthesized using a 1-(3-sulfonic group) propylpyridine (PyPS) and a Keggin vanadium-substituted heteropoly acid H7SiW9V3O40 through an ionic self-assembly method, and adjusting the ratio of cation and anion. A substitution effect of the acid salt gel electrolytes has been investigated. Interestingly, when protons of the polyoxometalate acid salt gel electrolytes are substituted, both the conductivity and the phase transformation temperature increase. The fastest conductivity of these gel electrolytes was as high as 2.57 × 10-2 S cm-1 at 110 °C.
Collapse
Affiliation(s)
- Limei Ai
- School of Biomedical and Chemical Engineering, Liaoning Institute of Science and Technology Benxi 117004 Liaoning P. R. China
| | - Zeqing Wang
- School of Biomedical and Chemical Engineering, Liaoning Institute of Science and Technology Benxi 117004 Liaoning P. R. China
| | - Fengwei He
- School of Biomedical and Chemical Engineering, Liaoning Institute of Science and Technology Benxi 117004 Liaoning P. R. China
| | - Qingyin Wu
- School of Biomedical and Chemical Engineering, Liaoning Institute of Science and Technology Benxi 117004 Liaoning P. R. China
- Department of Chemistry, Zhejiang University Hangzhou 310027 P. R. China
| |
Collapse
|
14
|
Xie Z, Wu H, Wu Q, Ai L. Synthesis and performance of solid proton conductor molybdovanadosilicic acid. RSC Adv 2018; 8:13984-13988. [PMID: 35539341 PMCID: PMC9079865 DOI: 10.1039/c8ra02390e] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Accepted: 04/10/2018] [Indexed: 01/05/2023] Open
Abstract
A molybdovanadosilicic acid H5SiMo11VO40·8H2O was synthesized and investigated in this work. The structure features and hydration degree of this acid were characterized by IR, UV, XRD and TG-DTA. Its proton conductivity was studied by electrochemical impedance spectroscopy (EIS). The EIS measurements demonstrated that H5SiMo11VO40·8H2O showed excellent proton conduction performance with proton conductivity reaching 5.70 × 10-3 S cm-1 at 26 °C and 70% relative humidity. So, it is a new solid high proton conductor. The conductivity enhances with the increase of temperature, and it exhibits Arrhenius behavior. The activation energy value for proton conduction is 21.4 kJ mol-1, suggesting that the proton transfer in this solid acid is dominated by Vehicle mechanism.
Collapse
Affiliation(s)
- Zhirong Xie
- Department of Chemistry, Zhejiang University Hangzhou 310027 P. R. China
| | - Han Wu
- Department of Chemistry, Zhejiang University Hangzhou 310027 P. R. China
| | - Qingyin Wu
- Department of Chemistry, Zhejiang University Hangzhou 310027 P. R. China
| | - Limei Ai
- School of Biomedical and Chemical Engineering, Liaoning Institute of Science and Technology Benxi 117004 Liaoning P. R. China
| |
Collapse
|
15
|
Ramezani S, Jahani R, Mashhadizadeh MH, Shahbazi S, Jalilian S. A novel ionic liquid/polyoxomolybdate based sensor for ultra-high sensitive monitoring of Al(III): Optimization by Taguchi statistical design. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.02.041] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
16
|
Zhang J, Chen X, Li W, Li B, Wu L. Solvent Dielectricity-Modulated Helical Assembly and Morphologic Transformation of Achiral Surfactant-Inorganic Cluster Ionic Complexes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:12750-12758. [PMID: 29048910 DOI: 10.1021/acs.langmuir.7b01259] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Ionic complexes comprising single/double chain cationic surfactant and Lindqvist-type polyoxomolybdate anionic cluster were used for controlled self-assembly in organic solutions. In the solvent with low dielectric constant the complexes self-assembled into flat ribbon like lamellar aggregations with an inverse bilayer substructure where the cluster located at the middle. Under the condition of increased dielectric constant, the solvent triggered the formation of helical self-assemblies, which finally transformed from helical ribbons to the flower-like assemblies due to the bilayer becoming excessively twisted. The self-assembled morphology and the substructure were characterized by SEM, TEM, and XRD. The solvent dielectricity-controlled morphologic transformations modulated by the variation of electrostatic interactions between organic cations and inorganic polyanions were demonstrated by 1H NMR and IR spectra. The strategy in this work represents an effective route in targeting the chirality-directed functionalization of inorganic clusters by combining controllable and helical assemblies of achiral polyoxometalate complexes in one system.
Collapse
Affiliation(s)
- Jing Zhang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University , Changchun 130012, P. R. China
- Institute of Applied Chemistry, Shanxi University , Taiyuan 030006, P. R. China
| | - Xiaofei Chen
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University , Changchun 130012, P. R. China
| | - Wen Li
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, Jilin University , Changchun 130012, P. R. China
| | - Bao Li
- State Key Laboratory of Supramolecular Structure and Materials, Institute of Theoretical Chemistry, Jilin University , Changchun 130012, P. R. China
| | - Lixin Wu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University , Changchun 130012, P. R. China
| |
Collapse
|