Solid-state supercapacitors based on polyoxometalate-based crystalline materials modified with polyaniline

Wang, Chen; Gao, Zhi-Xin; Zang, Hong-Ying; Dong, Tao-Wen; Su, Zhong-Min

doi:10.1039/d3qi00451a

Cited by 6 publications

(1 citation statement)

References 57 publications

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“…First, the cyclic voltammetry curves for compounds 1 – 3 were tested (Figure S16). The carbon paste electrode of compounds 1 – 3 have five pairs of redox peaks, which are attributed to the redox processes of the ligands (I–I ‘and II–II’) and POMs (III–III’, IV–IV’, and V–V’), respectively. − Therefore, both POM anions and viologen cation have good electrical activity.…”

Section: Resultsmentioning

confidence: 99%

Three Viologen Compounds Containing Keggin and Mo-Capped Weakley Polyoxometalates: Photo-/Thermo-/Electro-Chromic Studies

Lu,

Ying,

Tian

et al. 2024

Crystal Growth & Design

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Section: Resultsmentioning

confidence: 99%

Three Viologen Compounds Containing Keggin and Mo-Capped Weakley Polyoxometalates: Photo-/Thermo-/Electro-Chromic Studies

Lu,

Ying,

Tian

et al. 2024

Crystal Growth & Design

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Bismuth‐Based Metal‐Organic Frameworks for Water Vapor Capture and Energy Storage

Ma,

Wang,

Liu

et al. 2024

Adv Funct Materials

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Transforming water vapor into electricity is a critical method for advancing renewable energy supply and alleviating the global energy crisis. However, conventional materials typically struggle to achieve a balance between energy storage and humidity harvesting, making the integration of humidity detection with energy storage technology an emerging challenge. To address this challenge, a novel material design strategy is explored aimed at combining humidity harvesting capabilities with energy storage. Two novel hygroscopic Bi‐based metal‐organic frameworks [Bi2(HABTC)(ABTC)0.5·4H2O] (MOF 1) and [Bi4(ABTC)3(DMF)2]·DMF (MOF 2) are grown in situ on carbon paper electrodes, followed by further modification with polyaniline (PANI). This approach enhances the hygroscopicity of materials, thereby improving electrochemical performance, doubling the energy density compared to traditional coating methods. The integration of humidity‐sensitive polyoxometalates (POMs) electrolytes create a synergistic interaction between the electrode and the electrolyte, enabling effective moisture energy harvesting. At 90% relative humidity (RH) and 70 °C, the constructed solid‐state capacitor demonstrates a high energy density of 40.40 Wh kg−1 at 499.82 W kg−1. This research not only confirms the feasibility of water vapor energy harvesting but also paves an innovative pathway in the field of humidity energy conversion, highlighting its significant potential for future practical applications.

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Highly sensitive hydrazine detection through a novel Raman scattering quenching mechanism enabled by a crystalline and noble metal-free polyoxometalate substrate

Zhang,

Wang,

Zhan

et al. 2024

Chinese Chemical Letters

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Solid-state supercapacitors based on polyoxometalate-based crystalline materials modified with polyaniline

Abstract: Owing to the rapid advancement of electric energy and energy storage devices, there exists an urgent demand for solid-state supercapacitors that possess high capacitance and safety features. Polyoxometalates (POMs) –...

Cited by 6 publications

References 57 publications

Three Viologen Compounds Containing Keggin and Mo-Capped Weakley Polyoxometalates: Photo-/Thermo-/Electro-Chromic Studies

Three Viologen Compounds Containing Keggin and Mo-Capped Weakley Polyoxometalates: Photo-/Thermo-/Electro-Chromic Studies

Bismuth‐Based Metal‐Organic Frameworks for Water Vapor Capture and Energy Storage

Highly sensitive hydrazine detection through a novel Raman scattering quenching mechanism enabled by a crystalline and noble metal-free polyoxometalate substrate

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