Polar Organic Charge-Transfer Complex of the Asymmetrical Component for Flexible Piezoelectric Energy Harvesting and Self-Powered Wearable Sensors DOI

Shuang Ma,

Zhiqi Liu,

Chenchen Gao

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(2), P. 2583 - 2592

Published: Jan. 3, 2024

Organic piezomaterials have attracted much attention because of their easy processing, lightweight, and mechanic flexibility properties. Developing new smart organic is highly required for new-generation electronic applications. Here, we found a novel piezomaterial charge-transfer complex (CTC) consisting dibenzcarbazole analogue (DBCz) tetracyanoquinodimethane (TCNQ) in the molecular-level heterojunction stacking mode. The DBCz–TCNQ exhibited ferroelectric properties (the saturated polarization ∼1.23 μC/cm2) at room temperature with low coercive field. noncentrosymmetric alignment (Pc space group) led to spontaneous this architecture thus was origin piezoelectric behavior. Lateral nanogenerators (PENGs) based on thermal evaporated CTC thin-film significant energy conversion behavior under mechanical agitation calculated coefficient (d31) ∼33 pC/N. Furthermore, such binary constructed single-electrode PENG could show steady-state sensing performance external stimuli as flexible wearable device precisely detected physiological signals (e.g., finger bending, blink movement, carotid artery, etc.) self-powered supply. This work provides that polar CTCs can act efficient harvesting, conversion, devices supply, enabling great potential healthcare, motion detection, human–machine interfaces, etc.

Language: Английский

Electroactive Biomaterials Regulate the Electrophysiological Microenvironment to Promote Bone and Cartilage Tissue Regeneration DOI
Li Chen,

Jianye Yang,

Zhengwei Cai

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: 34(23)

Published: Jan. 7, 2024

Abstract The incidence of large bone and articular cartilage defects caused by traumatic injury is increasing worldwide; the tissue regeneration process for these injuries lengthy due to limited self‐healing ability. Endogenous bioelectrical phenomenon has been well recognized play an important role in homeostasis regeneration. Studies have reported that electrical stimulation (ES) can effectively regulate various biological processes holds promise as external intervention enhance synthesis extracellular matrix, thereby accelerating Hence, electroactive biomaterials considered a biomimetic approach ensure functional recovery integrating physiological signals, including electrical, biochemical, mechanical signals. This review will discuss endogenous bioelectricity tissue, effects ES on cellular behaviors. Then, recent advances materials their applications are systematically overviewed, with focus advantages disadvantages repair performances modulation cell fate. Finally, significance mimicking electrophysiological microenvironment target emphasized future development challenges strategies proposed.

Language: Английский

Citations

24
Construction of MXene/Bi2WO6 Schottky Junction for Highly Efficient Piezocatalytic Hydrogen Evolution and Unraveling Mechanism DOI

Xueer Ning,

Aize Hao, Yali Cao

et al.

Nano Letters, Journal Year: 2024, Volume and Issue: 24(11), P. 3361 - 3368

Published: March 6, 2024

For the first time, a series of MXene (Ti3C2Tx)/Bi2WO6 Schottky junction piezocatalysts were constructed, and piezocatalytic hydrogen evolution activity was explored. Optimal Ti3C2Tx/Bi2WO6 exhibits highest rate 764.4 μmol g–1 h–1, which is nearly 8 times higher than that pure Ti3C2Tx twice as high Bi2WO6. This value also surpasses most recently reported typical piezocatalysts. Moreover, related experimental results density functional theory calculations reveal can provide unique channels for efficient electron transfer, enhance piezoelectric properties, optimize adsorption Gibbs free energy water, reduce activation atoms, endow robust separation capacity charge carrier, restrict electron–hole recombination rate, thus significantly promoting efficiency reaction. Ultimately, we have unraveled an innovative mechanism. work broadens scope materials in sustainable piezocatalysis application.

Language: Английский

Citations

20
Mechanically driven water splitting over piezoelectric nanomaterials DOI Creative Commons
Shun Li, Xinyue Zhang, Fan Yang

et al.

Chem Catalysis, Journal Year: 2024, Volume and Issue: 4(2), P. 100901 - 100901

Published: Jan. 26, 2024

Language: Английский

Citations

17
Molybdenum sulphide incorporated flexible poly(vinylidene fluoride) nanocomposites for energy harvesting and water remediation by dye degradation via piezocatalysis DOI

Ananya Aishwarya,

Suvankar Mondal, Neelanjan Bhattacharjee

et al.

Polymer Composites, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 28, 2025

Abstract Molybdenum sulphide (MoS 2 ) was incorporated into poly(vinylidene difluoride) (PVDF) matrix via melt‐mixing followed by solution casting, to prepare PVDF/MoS nanocomposite films with varying MoS concentration. Piezoelectric properties of nanocomposites were significantly boosted incorporation in PVDF aiding the formation polar phase nanocomposites. Formation electroactive phases analyzed through Fourier transform infrared and Raman spectroscopic analyses, which also highlighted interactions between dipoles. A remarkable content ~97% achieved PVDF/3 (containing 3 wt% ). Dielectric ferroelectric investigations further supported enhancement interfacial polarization films. response fabricated devices subsequently assessed, demonstrating an output voltage ~96 V generated human‐hand actuation on film. Additionally, device exhibited a substantial volumetric power density ~150 μW/cm current ~7.2 μA/cm . Notably, optimized film significant degradation efficiencies ~69.7% ~67.4% case Methylene Blue Rhodamine B dye, respectively. The successful fabrication piezocatalytic provided valuable insights piezoelectric for various dyes. Highlights Self‐polarized high (∼97%) has been casting. High d 33 value ~72 pm/V nanocomposite. based nanogenerator can generate under N sensitivity ~26 V/N. Power obtained. acted as effective piezocatalysts organic dye >69% efficiency.

Language: Английский

Citations

3
Interfacial engineering of Bi2MoO6-BaTiO3 Type-I heterojunction promotes cocatalyst-free piezocatalytic H2 production DOI Creative Commons
Kailai Zhang, Xiaodong Sun, Rui Wang

et al.

Nano Energy, Journal Year: 2023, Volume and Issue: 121, P. 109206 - 109206

Published: Dec. 17, 2023

Single component semiconductor materials with piezoelectric response can promote the activation of hydrogen ions (H + ) and generation 2 under action mechanical force, but high recombination rate carriers is major obstacle to strengthen piezocatalytic efficiency. Here, a groundbreaking Bi MoO 6 -BaTiO 3 (BMO-BTO) Type-I heterojunction piezocatalyst successfully fabricated through solvothermal strategy, applied for cocatalysts-free H production reaction. Under ultrasonic vibration, BMO-0.1BTO reach up nearly 152.57 µmol/g/h, which approximately 9.33 4.47 times respect that pristine BMO (16.36 µmol/g/h) BTO (34.16 alone, respectively. Furthermore, also combined other commonly used piezocatalysts construct heterojunctions, analogous marvelous performance was attained. The enhanced be credited established built-in electric field (BIEF) in extraordinarily suppressed rates piezocarriers, rather than an increase piezoelectricity, emphatically verified series physics chemical characterizations. This study presents innovative paradigm fabricating BMO-based efficiently convert energy into energy. attributed remarkably reduced carriers, piezoelectricity. • Highly efficient BMO-BTO heterojunctions were rationally designed. owned excellent activity stability. An mechanism reasonably elucidated. new BIEF, material

Language: Английский

Citations

35
Low-frequency mechanical energy in the environment for energy production and piezocatalytic degradation of organic pollutants in water: A review DOI
Xiaxia Chen, Jingxue Wang, Zichen Wang

et al.

Journal of Water Process Engineering, Journal Year: 2023, Volume and Issue: 56, P. 104312 - 104312

Published: Sept. 19, 2023

Language: Английский

Citations

24
Regulation of phase composition and oxygen vacancy in hydrothermally synthesized NaNbO3 nanowire and its enhanced piezocatalytic activity for antibiotic elimination DOI

Yuyan Yi,

Meixuan Wu,

Renshu Wang

et al.

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 485, P. 149885 - 149885

Published: Feb. 21, 2024

Language: Английский

Citations

13
Sulfur-Vacancy-Engineered Two-Dimensional Cu@SnS2–x Nanosheets Constructed via Heterovalent Substitution for High-Efficiency Piezocatalytic Tumor Therapy DOI
Xinyu Ma, Binbin Ding,

Zhuang Yang

et al.

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(31), P. 21496 - 21508

Published: July 29, 2024

Ultrasound (US)-mediated piezocatalytic tumor therapy has attracted much attention due to its notable tissue-penetration capabilities, noninvasiveness, and low oxygen dependency. Nevertheless, the efficiency of is limited an inadequate piezoelectric response, separation electron–hole (e––h+) pairs, complex microenvironment (TME). Herein, ultrathin two-dimensional (2D) sulfur-vacancy-engineered (Sv-engineered) Cu@SnS2–x nanosheet (NS) with enhanced effect was constructed via heterovalent substitution strategy Sn4+ by Cu2+. The introduction Cu2+ ion not only causes changes in crystal structure increase polarization but also generates rich Sv decrease band gap from 2.16 1.62 eV inhibit e––h+ pairs recombination, collectively leading highly efficient generation reactive species under US irradiation. Moreover, shows US-enhanced TME-responsive Fenton-like catalytic activity glutathione depletion ability, further aggravating oxidative stress. Both vitro vivo results prove that Sv-engineered NSs can significantly kill cells achieve high-efficiency a biocompatible manner. Overall, this study provides new avenue for sonocatalytic broadens application 2D materials.

Language: Английский

Citations

13
Ce-regulating defect and morphology engineering for efficient enhancing piezocatalytic performances of BiOBr DOI

Lihui Zhan,

Jindou Hu, Yali Cao

et al.

Chemical Communications, Journal Year: 2024, Volume and Issue: 60(14), P. 1892 - 1895

Published: Jan. 1, 2024

Ce-doped BiOBr piezocatalysts are rationally designed by defect and morphology engineering strategies, demonstrate excellent catalytic performances.

Language: Английский

Citations

12
Harvesting Vibration Energy to Produce Hydrogen Peroxide with Bi3TiNbO9 Nanosheets through a Water Oxidation Dominated Dual-Channel Pathway DOI

Yongfei Cui,

Fenghui Wang,

Panpan Yuan

et al.

ACS Sustainable Chemistry & Engineering, Journal Year: 2024, Volume and Issue: 12(9), P. 3595 - 3607

Published: Feb. 16, 2024

Developing green, efficient, and sustainable techniques to synthesize hydrogen peroxide has always been the challenge faced by researchers. The rising-star piezocatalysis demonstrated be capable of drive redox reactions based on piezoelectric effect therefore may provide novel solutions for H2O2 production through mechanical energy conversion. Herein, bismuth layered compound Bi3TiNbO9 (BTNO) was utilized produce harvesting ultrasound vibration in a pure water system first time. A yield rate 407.05 μmol·g–1·h–1 achieved under ultrasonic conditions (40 kHz, 50 W) without any cocatalysts scavengers, surpassing majority reported piezocatalysts with similar mechanisms. Furthermore, satisfied circulation long-term running stability piezocatalyst BTNO were proved, accumulated concentration could reach 1127 μM after 5 h reaction. response piezoresponse force microscopy (PFM), electrochemical characterization, piezodeposition experiments. On basis band structure analysis, possible pathway generating proposed according radical-trapping atmosphere control experiment results. It found that both oxidation reaction (WOR) oxygen reduction (ORR) contributed H2O2, but direct WOR plays an absolute dominant role. In addition, Ar sparging verified able efficiently enhance generation due enlarged cavitation effect, superior its photocatalysis synthesizing H2O2. is hoped this work can deep insights into offer clues synthesis peroxide.

Language: Английский

Citations

11