A 3D POMOF based on a {AsW<sub>12</sub>} cluster and a Ag-MOF with interpenetrating channels for large-capacity aqueous asymmetric supercapacitors and highly selective biosensors for the detection of hydrogen peroxide

Cui, Liping; Yu, Kai; Lv, Jinghua; Guo, Changhong; Zhou, Baibin

doi:10.1039/d0ta08759a

Cited by 96 publications

(50 citation statements)

References 65 publications

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“…Considering that POM-based complexes have usually displayed outstanding supercapacitor properties, − the capacitive performances of complexes 1 and 2 were also investigated here, which were estimated through cyclic voltammetry (CV), galvanostatic charge/discharge (GCD), and electrochemical impedance spectroscopy (EIS), in which two complexes were employed as electrode materials to modify the CC.…”

Section: Resultsmentioning

confidence: 99%

Capped Keggin Type Polyoxometalate-Based Inorganic–Organic Hybrids Involving In Situ Ligand Transformation as Supercapacitors and Efficient Electrochemical Sensors for Detecting Cr(VI)

Wang

Lin

et al. 2021

Inorg. Chem.

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To construct polyoxometalate-based complexes as electrode materials for supercapacitors and electrochemical sensors, we intentionally used in situ ligand transformation during the reaction. Two complexes based on polyoxometalates capped by zinc ions, H{Zn4(DIBA)4[(DIBA)(HPO2)]2(α-PMoVI 8MoV 4O40Zn2)} (1) and [ε-PMoV 8MoVI 4O37(OH)3Zn4(HDBIBA)2]·6H2O (2) [DIBA = 3,5-di(1H-imidazol-1-yl)benzoic acid, and DBIBA = 3,5-bis(1H-benzoimidazol-1-yl)benzoic acid], have been prepared successfully. The DIBA and DBIBA ligands were generated in situ from initial materials 3,5-di(1H-imidazol-1-yl)benzonitrile and 3,5-di(1H-benzoimidazol-1-yl)benzonitrile. The three-dimensional structure of 1 consisted of two-dimensional interpenetrating layers and polyoxometalate-based chains composed of bicapped α-PMo12Zn2 polyoxoanions and phosphite-modified DIBA ligands. In 2, a kind of tetracapped ε-PMo12Zn4 polyoxoanion exists, which was further linked by DBIBA ligands into a one-dimensional chain. Two complexes could be employed as not only electrode materials for supercapacitors with specific capacitances of 171.17 F g–1 for 1 and 146.77 F g–1 for 2 at 0.5 A g–1 but also efficient electrochemical sensors for detecting Cr(VI) with excellent limits of detection of 0.026 μM for 1 and 0.035 μM for 2, which represents a hopeful approach for exploiting polyoxometalate-based complexes as supercapacitor and electrochemical sensor materials.

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Section: Resultsmentioning

confidence: 99%

Capped Keggin Type Polyoxometalate-Based Inorganic–Organic Hybrids Involving In Situ Ligand Transformation as Supercapacitors and Efficient Electrochemical Sensors for Detecting Cr(VI)

Wang

Lin

et al. 2021

Inorg. Chem.

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“…In addition, this system showed a linear range of 10 nM-18 mM, stability for 30 days, and proved to be successful towards bromate reduction (reported ahead in Table 3). Although less sensible (at μM level), other authors (Ammam and Easton, 2012;Zhang et al, 2015;Li et al, 2016;Zhang et al, 2019a;Liu et al, 2020a;Zhu et al, 2021;Cui et al, 2020;Wang et al, 2018a) achieved to improve electrochemical properties and stability at high pH (physiological level) by pairing POM anions (Keggin, Dawson, crown-shape and Preyssler) with organic or organometallic compounds (Ammam and Easton, 2012;Zhu et al, 2021), with carbon materials decorated with metal nanoparticles (Zhang et al, 2015;Li et al, 2016;Zhang et al, 2019a) or nitrogen (Liu et al, 2020a), and with metalorganic frameworks (MOFs) (Cui et al, 2020;Wang et al, 2018a), that enhanced POM stability at less acidic pH. It is worth mentioning that for the application of POM complexes in an aqueous solution, a thorough insight into the solution chemistry is essential in order to understand the reaction mechanism.…”

Section: Sensing Of Hydrogen Peroxidementioning

confidence: 99%

Polyoxometalate Functionalized Sensors: A Review

2022

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Polyoxometalates (POMs) are a class of metal oxide complexes with a large structural diversity. Effective control of the final chemical and physical properties of POMs could be provided by fine-tuning chemical modifications, such as the inclusion of other metals or non-metal ions. In addition, the nature and type of the counterion can also impact POM properties, like solubility. Besides, POMs may combine with carbon materials as graphene oxide, reduced graphene oxide or carbon nanotubes to enhance electronic conductivity, with noble metal nanoparticles to increase catalytic and functional sites, be introduced into metal-organic frameworks to increase surface area and expose more active sites, and embedded into conducting polymers. The possibility to design POMs to match properties adequate for specific sensing applications turns them into highly desirable chemicals for sensor sensitive layers. This review intends to provide an overview of POM structures used in sensors (electrochemical, optical, and piezoelectric), highlighting their main functional features. Furthermore, this review aims to summarize the reported applications of POMs in sensors for detecting and determining analytes in different matrices, many of them with biochemical and clinical relevance, along with analytical figures of merit and main virtues and problems of such devices. Special emphasis is given to the stability of POMs sensitive layers, detection limits, selectivity, the pH working range and throughput.

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“…This group also synthesized a 2D bimetallic organic framework (Na/Zn-MOF) at room temperature ([NaZn 2 (μ 2 -BTC) 2 (μ 2 -O) 2 (Azopy)(H 2 O) 2 ] n , where BTC = trimesic acid and Azopy = 4,40′-azopyridine) combined with 2D graphene as electrode materials studied in 0.5 M Na 2 SO 4 solution for next-generation SCs. 124 Very recently, Cui et al 125 The complicated 3D networks of these compounds with intersecting channels and novel topologies exhibit higher capacitance, superior rate capability, and better cycling stability compared to those of POM without Ag-MOF.…”

Section: Research On Composite Materialsmentioning

confidence: 99%

Review of Pristine Metal–Organic Frameworks for Supercapacitors: Recent Progress and Perspectives

Gao

Shen

et al. 2021

Energy Fuels

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Metal−organic frameworks (MOFs), also known as coordination polymers or coordination networks (self-assembled by multidentate organic ligands and metal ions/metal clusters), are multifunctional materials, which have been widely used in the fields of sensing, catalysis, ion exchange, adsorption/separation, or gas storage since their birth. At present, MOFs are a new type of energy storage and conversion material, which are considered as one of the most promising electrode candidates as a result of their large specific surface area, adjustable pores, open metal sites, and adjustable crystal structure. Although MOFs have the above advantages, the direct utilization of pristine MOFs as electrode materials is facing great challenges, which hinder their practical application. On the basis of this, in this review, we summarize the recent development of pristine MOFs as electrode materials for supercapacitors. On the basis of the research of these pristine MOFs, the synthesis process, energy storage performance, and structural design characteristics are summarized. Finally, we focus on the future development trend of pristine MOFs.

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A 3D POMOF based on a {AsW₁₂} cluster and a Ag-MOF with interpenetrating channels for large-capacity aqueous asymmetric supercapacitors and highly selective biosensors for the detection of hydrogen peroxide

Abstract: The {AsW12O40} clusters are grafted into Ag-MOF to yield two 3D polyoxometallate-based metal organic frameworks (POMOFs), (imi)2[{Ag3(tpb)2}2(H2O){AsW12O40}2]·6H2O (1) and [(Ag7bpy7Cl2){AsWV2WVI10O40}]·H2O (2) (imi = imidazole; tpb = 1, 2, 4, 5-tetrakis...

Cited by 96 publications

References 65 publications

Capped Keggin Type Polyoxometalate-Based Inorganic–Organic Hybrids Involving In Situ Ligand Transformation as Supercapacitors and Efficient Electrochemical Sensors for Detecting Cr(VI)

Capped Keggin Type Polyoxometalate-Based Inorganic–Organic Hybrids Involving In Situ Ligand Transformation as Supercapacitors and Efficient Electrochemical Sensors for Detecting Cr(VI)

Polyoxometalate Functionalized Sensors: A Review

Review of Pristine Metal–Organic Frameworks for Supercapacitors: Recent Progress and Perspectives

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A 3D POMOF based on a {AsW12} cluster and a Ag-MOF with interpenetrating channels for large-capacity aqueous asymmetric supercapacitors and highly selective biosensors for the detection of hydrogen peroxide

Abstract: The {AsW12O40} clusters are grafted into Ag-MOF to yield two 3D polyoxometallate-based metal organic frameworks (POMOFs), (imi)2[{Ag3(tpb)2}2(H2O){AsW12O40}2]·6H2O (1) and [(Ag7bpy7Cl2){AsWV2WVI10O40}]·H2O (2) (imi = imidazole; tpb = 1, 2, 4, 5-tetrakis...

Cited by 96 publications

References 65 publications

Capped Keggin Type Polyoxometalate-Based Inorganic–Organic Hybrids Involving In Situ Ligand Transformation as Supercapacitors and Efficient Electrochemical Sensors for Detecting Cr(VI)

Capped Keggin Type Polyoxometalate-Based Inorganic–Organic Hybrids Involving In Situ Ligand Transformation as Supercapacitors and Efficient Electrochemical Sensors for Detecting Cr(VI)

Polyoxometalate Functionalized Sensors: A Review

Review of Pristine Metal–Organic Frameworks for Supercapacitors: Recent Progress and Perspectives

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Product

Resources

About

A 3D POMOF based on a {AsW₁₂} cluster and a Ag-MOF with interpenetrating channels for large-capacity aqueous asymmetric supercapacitors and highly selective biosensors for the detection of hydrogen peroxide