Controllable design of high-efficiency triboelectric materials by functionalized metal—organic frameworks with a large electron-withdrawing functional group

Wen, Rongmei; Feng, Rui; Zhao, Bo; Song, Jiangfeng; Fan, Liming; Zhai, Junyi

doi:10.1007/s12274-022-4731-6

Cited by 27 publications

(30 citation statements)

References 36 publications

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“…5f ). [43][44][45][46][47][48][49][50][51][52][53][54] In order to evaluate the performance more accurately, the Cd-MT was tested five times under equal conditions. As shown in Fig.…”

Section: Output Performance Of the Tengmentioning

confidence: 99%

3D nanocrystalline metal–organic framework materials for the improved output performance of triboelectric nanogenerators

et al. 2023

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“…5f ). [43][44][45][46][47][48][49][50][51][52][53][54] In order to evaluate the performance more accurately, the Cd-MT was tested five times under equal conditions. As shown in Fig.…”

Section: Output Performance Of the Tengmentioning

confidence: 99%

3D nanocrystalline metal–organic framework materials for the improved output performance of triboelectric nanogenerators

et al. 2023

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“…[20,21] Literature reports reveal TENGs fabricated from zeolitic imidazole framework members, HKUST-1, and a few other MOFs, including UiO series. [20,22] Due to their excellent performance and versatility, MOFs are employed as multifunctional materials in the triboelectric series. [20][21][22] MOFs can serve as positive or negative triboelectric materials depending on the functional group.…”

Section: Introductionmentioning

confidence: 99%

“…[20,22] Due to their excellent performance and versatility, MOFs are employed as multifunctional materials in the triboelectric series. [20][21][22] MOFs can serve as positive or negative triboelectric materials depending on the functional group. Due to the improved charge holding capability, the bromine-functionalized porous materials produce higher output with PVDF as the opposite layer than their nonbromine-containing counterparts do.…”

Section: Introductionmentioning

confidence: 99%

Highly Stable and End‐group Tuneable Metal–Organic Framework/Polymer Composite for Superior Triboelectric Nanogenerator Application

Saurabh

Mollick

et al. 2022

Adv Materials Inter

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generations. This has necessitated the enhanced use of renewable forms of energy. While solar energy and wind energy are perhaps the most explored forms of renewables, other forms such as mechanical energy have received relatively less attention. In fact, the energy from diverse mechanical motions such as body motion, wind, and water tidal energy has been mostly squandered and ignored in the past. Fortunately, the scientific community has begun to take notice of the availability of such other energy sources available to us as a partial solution to the growing energy-related problems. [1,2] Indeed, in the recent decade, mechanical energy conversion technologies have witnessed substantial progress, especially in the area of distributed micro/nano-power sources, portable high-voltage sources, wearable electronics, and high-precision sensors. At the heart of this progress are the devices known as triboelectric nanogenerators (TENGs) which basically exploit the concept of charge separation accomplished by relative motion between two dissimilar materials in proximity, the well-known phenomenon of friction being an expression of the process. [3] The dissimilarity of materials emanates from Triboelectric nanogenerators (TENGs) are receiving significant attention lately as efficient mechanical energy harvesting devices. They are finding multiple uses in numerous low-power applications. Current TENG designs, although innovative, fall short on practical demands like performance tunability, modulatory, and stability. This invites further research in the use of new materials for TENGs. Metal-organic frameworks (MOFs) offer a unique feature of molecular tunability to optimize energy conversion which has been exploited in this study. Prototypal hybridization strategy is deployed on underexplored isoreticular subfamily UiO-66(Zr) MOFs through UiO-66-X/PVDF (X = H or Br) composites for TENG output tuning and amplification. UiO-66-X/PVDF exhibits good aquatic and thermal stability accompanying substantial boost in TENG power. Functionalized H 2 BDC linker improved surface roughness and potential. UiO-66-Br encased in PVDF matrix boosted charge and TENG performance by enhancing electrification. Computational details support observations. Device captures waste energy in a vertical contact-separation mode and functions consistently amidst diverse environmental settings. Functionalized TENG-2 delivers a V p-p of 110.41 V, which is 2.92 times and 14.12 times higher than unfunctionalized TENG-1 and PVDF film, respectively. Findings reveal maiden example of ligand-mediated functional group-driven performance tuning of TENG and mechanistic insight using isoreticular MOFs/PVDF composites.

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“…[ 15 ] In recent years, TENG have been rapidly developed and widely used in low‐frequency mechanical energy harvesting, self‐powered sensing, and other fields. [ 16 ] In 2018, our group first reported the ionization of air at RT utilizing the voltage as high as several thousand volts of TENG, and the ionization properties and generation mechanism for different gas molecules were also studied. [ 17,18 ] In 2019, we combined triboelectric plasma with ZnO semiconductor nanodevices to establish a gas‐ionic‐gated (GIG) technology, [ 19 ] which uses O 2 − gas ions as a floating gate on the semiconductor surface to tune its surface state and electrical transport properties.…”

Section: Introductionmentioning

confidence: 99%

Active‐ion‐gated room temperature acetone gas sensing of ZnO nanowires array

et al. 2022

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Reducing the high operation temperature of gas sensor to room temperature (RT) have attracted intense interests for its distinct preponderances, including energy‐saving and super stability, which presents great prospects in commercial application. The exciting strategies for RT gas sensing, such as unique materials with activated surface or light activation, do not directly modulate the active ions for gas sensing, limiting the RT gas sensing performances. Here, an active‐ion‐gated strategy has been proposed for RT gas sensing with high performance and low power consumption, in which gas ions in triboelectric plasma are introduced into metal oxide semiconductor (MOS) film to act as both floating gate and active sensing ions. The active‐ion‐gated ZnO nanowires (NWs) array shows a sensitivity of 38.3% to 10 ppm acetone gas at RT, and the maximum power consumption is only 4.5 mW. At the same time, the gas sensor exhibits excellent selectivity to acetone. More importantly, the response (recovery) time of this sensor is as low as 11 s (25 s). It is found that OH−(H2O)4 ions in plasma are the key for realizing RT gas sensing ability, and an accompanied resistive switch is also observed. It is considered that the electron transfer between OH−(H2O)4 and ZnO NWs will forms a hydroxyl‐like intermediate state (OH*) on the top of Zn2+, leading to the band bending of ZnO and activating the reactive O2− ions on the oxygen vacancies. The active‐ion‐gated strategy proposed here present a novel exploration to achieving RT gas sensing performance of MOS by activating sensing properties at the scale of ions or atoms.

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Controllable design of high-efficiency triboelectric materials by functionalized metal—organic frameworks with a large electron-withdrawing functional group

Cited by 27 publications

References 36 publications

3D nanocrystalline metal–organic framework materials for the improved output performance of triboelectric nanogenerators

3D nanocrystalline metal–organic framework materials for the improved output performance of triboelectric nanogenerators

Highly Stable and End‐group Tuneable Metal–Organic Framework/Polymer Composite for Superior Triboelectric Nanogenerator Application

Active‐ion‐gated room temperature acetone gas sensing of ZnO nanowires array

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