Biopolymer and Biomimetic Techniques for Triboelectric Nanogenerators (TENGs)

Advanced Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 6, 2024

Triboelectric nanogenerators (TENGs) play a crucial role in attaining sustainable energy for various wearable devices. Polymer materials are essential components of TENGs. Biopolymers suitable TENGs because their degradability, natural sourcing, and cost-effectiveness. Herein, the latest progress commonly used biopolymers well-designed biomimetic techniques TENG is summarized. The applications rubber, polysaccharides, protein-based biopolymers, other common synthetic technology summarized detail. Each biopolymer discussed based on its electrification capability, polarity variations, specific functionalities as active functional layers Important strategies related also to guide structural design TENG. In future, study triboelectric may focus exploring alternative candidates, enhancing charge density, expanding functionality. Various possible biopolymer-based proposed this review. By applying methods devices, fields healthcare, environmental monitoring, wearable/implantable electronics can be further promoted.

Language: Английский

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The Role of Interfaces and Charge for Chemical Reactivity in Microdroplets

Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: 147(8), P. 6299 - 6317

Published: Feb. 17, 2025

A wide variety of reactions are reported to be dramatically accelerated in aqueous microdroplets, making them a promising platform for environmentally clean chemical synthesis. However, fully utilize the microdroplets accelerating requires fundamental understanding how microdroplet chemistry differs from that homogeneous phase. Here we provide our perspective on recent progress this end, both experimentally and theoretically. We begin by reviewing many ways which can prepared, creating water/hydrophobic interfaces have been frequently implicated reactivity due preferential surface adsorption solutes, persistent electric fields, their acidity or basicity. These features interface interplay with specific mechanisms proposed reactivity, including partial solvation, possible gas phase channels, presence highly reactive intermediates. especially highlight role droplet charge associated appears key certain reactions, like formation hydrogen peroxide reduced transition metal complexes, thermodynamically microdroplets. Lastly, emphasize opportunities theoretical advances suggest experiments would greatly enhance fascinating subject.

Language: Английский

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Unveiling the contact electrification of triboelectric fibers by exploring their unique micro- and macroscale structural properties

Materials Today, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

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Solid-liquid interface charge transfer for generation of H2O2 and energy

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: Feb. 16, 2025

Solid-liquid contact electrification is a widespread interface phenomenon in nature. Recent research and theory demonstrate that electron transfer during this process holds the potential to initiate interfacial chemical reactions. Here, we design dual-functional device for generation of H2O2 energy. Interfacial reactions solid-liquid charging occur simultaneously liquid phase flow process. Specifically, at induces formation hydroxyl radicals (·OH) phase, leading spontaneous H2O2. The charges accompanied by energy transfer. By designing an external electrode structure, can effectively harvest from flowing yielding output power up 5.8 kW/m3 water. During water, electrons between solid phases leads simultaneous charging.

Language: Английский

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Electrostatic breakdown at liquid-solid-gas triple-phase interfaces owing to contact electrification

Matter, Journal Year: 2025, Volume and Issue: unknown, P. 102007 - 102007

Published: Feb. 1, 2025

Language: Английский

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Recent advances in the treatment of heavy/precious metal pollution, resource recovery and reutilization: Progress and perspective

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 523, P. 216268 - 216268

Published: Oct. 17, 2024

Language: Английский

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Mechano-driven chemical reactions

Green Energy & Environment, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 1, 2024

Traditional chemical processes often generate substantial waste, leading to significant pollution of water, air, and soil. Developing eco-friendly methods is crucial for economic environmental sustainability. Mechano-driven chemistry, with its potential material recyclability minimal byproducts, well-aligned green chemistry principles. Despite origins over 2000 years ago nearly 200 scientific investigation, mechano-driven has not been widely implemented in practice. This likely due a lack comprehensive understanding the complex physical effects mechanical forces, which challenge reaction efficiency scalability. review summarizes historical development discusses progress across various mechanisms, including mechanochemistry, tribochemistry, piezochemistry, contact electrification (CE) chemistry. CE-induced reactions, involving ion transfer, electron radical generation, are detailed, emphasizing dominant role radicals initiated by transfer influence through electrical double layer (EDL) formation. Advancing efficient, eco-friendly, controllable technologies can reduce reliance on traditional energy sources (such as electricity heat) toxic reagents, fostering innovation synthesis, catalytic technologies, establishing new paradigm broader applications.

Language: Английский

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Boosting Reactive Oxygen Species Generation via Contact‐Electro‐Catalysis with Fe^III‐Initiated Self‐cycled Fenton System

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 64(1)

Published: Aug. 22, 2024

Contact Electro-Catalysis (CEC) using commercial dielectric materials in contact-separation cycles with water can trigger interfacial electron transfer and induce the generation of reactive oxygen species (ROS). However, inherent hydrophobicity limits effective reaction sites, generated ROS inevitably undergo self-combination to form hydrogen peroxide (H

Language: Английский

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Regulating Contact-Electro-Catalysis Using Polymer/Metal Janus Composite Catalysts

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 1, 2024

Interfacial contact electrification can catalyze redox reactions through a process called contact-electro-catalysis (CEC). The two main reaction paths for producing reactive oxygen species via CEC are the water oxidation (WOR) and reduction (ORR). Herein, we designed polymer/metal Janus composite catalyst that regulated rates of WOR ORR based on composition. was preferentially enhanced when polymer negatively charged during electrification, while positively charged. This phenomenon observed various conductive materials. increase in enhancement depended conductivity work function metal. We expect this efficient method form universal strategy improving performance existing catalysts, as is common nature.

Language: Английский

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Catalysis under electric-/magnetic-/electromagnetic-field coupling

Chemical Society Reviews, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 19, 2024

This review outlines recent advances in field-regulated catalysis and reveals the key role of dipole manipulation by electric/magnetic/electromagnetic fields.

Language: Английский

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