Assembly of 12-Tungstovanadate-Templated Nanocage and Nanocomposites with Single-Walled Carbon Nanotubes as Anodes in Lithium-Ion Batteries

Sha, Jingquan; Sun, Jingwen; Tong, Zhibo; Li, Xiao; Li, Mengting; Xu, Mingqi; Li, Qian; Liu, Chang

doi:10.1021/acs.inorgchem.0c01150

Cited by 15 publications

(8 citation statements)

References 57 publications

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“…Recent reports indicate that tungstovanadates can exhibit special structural features and properties. − Herein, we provide a new method for the preparation of a novel TRIS-substituted Lindqvist-type hexatungstovanadates [V x W 6– x O 16 (CH 2 O) 3 CR] ( x −1)– [ x = 3 or 4; R = CH 3 ( 1 ; CCDC 2027592) or CH 2 OH ( 2 ; CCDC 2027593)]. These compounds were synthesized by a simple one-pot reaction in an aqueous solution with simple vanadate, tungstate salts, and TRIS ligands under mild conditions.…”

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confidence: 99%

A New Family of Polyoxometalates: Tris-functionalized Lindqvist-Type Hexatungstovanadates

et al. 2021

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We successfully designed and obtained a new family of polyoxometalates (POMs) containing mixed-metal elements and a trialkoxyl (TRIS) ligand via a very simple one-pot process under mild condition. Single-crystal X-ray diffraction revealed that this family belongs to compact Lindqvist-type hexatungstovanadates. In particular, the hydroxyl-containing product can be further functionalized through esterification. Not only does this work open a broad door for unusual POM clusters involving vanadium and tungsten atoms in the future, but also the design concept of this work also provides new insight for the synthesis and further exploration of POMs.

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confidence: 99%

A New Family of Polyoxometalates: Tris-functionalized Lindqvist-Type Hexatungstovanadates

et al. 2021

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“…As we know, POM‐based materials show extraordinary advantages for LIBs [65–67] . However, many factors (such as different chemical components) that might influence electrochemical performance still need to be verified [68] .…”

Section: Resultsmentioning

confidence: 99%

“…As we know, POM-based materials show extraordinary advantages for LIBs. [65][66][67] However, many factors (such as different chemical components) that might influence electrochemical performance still need to be verified. [68] In this respect, the design of specifically targeted compounds often plays an important role in the in-depth study of this issue.…”

Section: Electrochemical Performancementioning

confidence: 99%

Self‐Assembly of Polyoxometalate‐Resorcin[4]arene‐Based Inorganic‐Organic Complexes: Metal Ion Effects on the Electrochemical Performance of Lithium Ion Batteries

Liu

Pei

et al. 2021

Chemistry A European J

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With their adjustable structures and diverse functions, polyoxometalate (POM)‐resorcin[4]arene‐based inorganic–organic complexes are a kind of potential multifunctional material. They have potential applications for lithium ion batteries (LIBs). However, the relationship between different coordinated metal ions and electrochemical performance has rarely been investigated. Here, three functionalized POM‐resorcin[4]arene‐based inorganic–organic materials, [Co2(TMR4 A)2(H2O)10][SiW12O40]⋅2 EtOH⋅4.5 H2O (1), [Ni2(TMR4 A)2(H2O)10][SiW12O40]⋅4 EtOH⋅13 H2O (2), and [Zn2(TMR4 A)2(H2O)10][SiW12O40]⋅2 EtOH⋅2 H2O (3), have been synthesized. Furthermore, to enhance the conductivities of these compounds, 1–3 were doped with reduced graphene oxide (RGO) to give composites 1@RGO‐3@RGO, respectively. As anode materials for LIBs, 1@RGO‐3@RGO can deliver very high discharge capacities (1445.9, 1285.0 and 1095.3 mAh g−1, respectively) in the initial run, and show discharge capacities of 898, 665 and 651 mAh g−1, respectively, at a current density of 0.1 A g−1 over 100 runs. More importantly, the discharge capacities of 319, 283 and 329 mAh g−1 were maintained for 1@RGO‐3@RGO even after 400 cycles at large current density (1 A g−1).

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“…38−42 For example, Sha et al reported a 12-tungstovanadate framework combined singlewalled carbon nanotube (SWNT) composite (VW12@MOCF/ SWNT-2), which featured the outstanding electrochemical performance. 43 The reduced graphene oxide (RGO)/conducting polymers could interact with POMOFs via hydrogen bonds and π−π interactions to effectively enhance the POMOF conductivity. 44,45 On the other hand, the sizes of the resulting composites could affect the rate performance of LIBs.…”

Section: ■ Introductionmentioning

confidence: 99%

“…In this facet, the most popular method is to combine POMOFs with a conducting substrate. − For example, Sha et al reported a 12-tungstovanadate framework combined single-walled carbon nanotube (SWNT) composite (VW12@MOCF/SWNT-2), which featured the outstanding electrochemical performance . The reduced graphene oxide (RGO)/conducting polymers could interact with POMOFs via hydrogen bonds and π–π interactions to effectively enhance the POMOF conductivity. , On the other hand, the sizes of the resulting composites could affect the rate performance of LIBs. − The nanoscale samples provided a large amount of specific surfaces for the interactions with active sites of Li + , which thus improved their electrochemical behaviors for LIBs. , However, the size-controlled syntheses for the POMOFs are difficult and essential for anode materials. , …”

Section: Introductionmentioning

confidence: 99%

Polyoxometalate-Templated Cobalt-Resorcin[4]arene Frameworks: Tunable Structure and Lithium-Ion Battery Performance

et al. 2021

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By employing a bowl-like tetra(benzimidazole)resorcin[4]arene (TBR4A) ligand, two new polyoxometalate-templated metal–organic frameworks (POMOFs), [Co8Cl14(TBR4A)6]·3[H3.3SiW12O40]·10DMF·11EtOH·20H2O (1) and [Co3Cl2(TBR4A)2(DMF)4]·[SiW12O40]·2EtOH·3H2O (2), have been prepared under solvothermal conditions (DMF = N,N′-dimethylformamide). 1 shows a 2D cationic layer, whereas 2 exhibits a 3D framework. Remarkably, the Keggin POMs in 1 and 2 were located in the cavities formed by two bowl-like resorcin[4]arenes in sandwich fashions. Their framework structures were highly dependent on the coordination modes of the TBR4A ligands. To increase the conductivity of POMOFs, the samples of 1 and 2 were loaded on the conductive polypyrrole-reduced graphene oxide (PPy-RGO) via ball milling (1@PG and 2@PG). Then, the obtained composites experienced calcination at a proper temperature to produce 1@PG-A and 2@PG-A. The resulting 1@PG-A and 2@PG-A composites, with improved conductivities, uniform sizes and micropores, exhibited promising electrochemical performance for lithium-ion batteries. We herein proposed a size-controlled route for the rational fabrication of functional POMOFs and their usage in energy fields.

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Assembly of 12-Tungstovanadate-Templated Nanocage and Nanocomposites with Single-Walled Carbon Nanotubes as Anodes in Lithium-Ion Batteries

Cited by 15 publications

References 57 publications

A New Family of Polyoxometalates: Tris-functionalized Lindqvist-Type Hexatungstovanadates

A New Family of Polyoxometalates: Tris-functionalized Lindqvist-Type Hexatungstovanadates

Self‐Assembly of Polyoxometalate‐Resorcin[4]arene‐Based Inorganic‐Organic Complexes: Metal Ion Effects on the Electrochemical Performance of Lithium Ion Batteries

Polyoxometalate-Templated Cobalt-Resorcin[4]arene Frameworks: Tunable Structure and Lithium-Ion Battery Performance

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