Stretchable polyvinyl alcohol and sodium alginate double network ionic hydrogels for low-grade heat harvesting with ultrahigh thermopower

Materials Today Energy, Journal Year: 2023, Volume and Issue: 37, P. 101383 - 101383

Published: Aug. 15, 2023

Language: Английский

---

Is 3D Printing Promising for Osteochondral Tissue Regeneration?

ACS Applied Bio Materials, Journal Year: 2023, Volume and Issue: 6(4), P. 1431 - 1444

Published: March 21, 2023

Osteochondral tissue regeneration is quite difficult to achieve due the complexity of its organization. In design these complex multilayer structures, a fabrication method, 3D printing, started be employed, especially by using extrusion, stereolithography and inkjet printing approaches. this paper, designs are discussed including biphasic, triphasic, gradient structures which aim mimic cartilage calcified whole osteochondral closely. first section review hydrogels gelatin methacryloyl (GelMa), alginate, polyethylene glycol diacrylate (PEGDA) discussed. However, their physical biological properties need augmented, generally achieved blending hydrogel with other, more durable, less hydrophilic, polymers. These scaffolds very suitable carry growth factors, such as TGF-β1, further stimulate chondrogenesis. The bone layer mimicked calcium phosphates (CaPs) or bioactive glasses together component another polymer layer. current research findings indicate that polyester (i.e. polycaprolactone (PCL), polylactic acid (PLA) poly(lactide-

Language: Английский

---

Photovoltaic passive cooling via water vapor sorption-evaporation by hydrogel

Applied Thermal Engineering, Journal Year: 2023, Volume and Issue: 240, P. 122185 - 122185

Published: Dec. 9, 2023

Language: Английский

---

Enhancing the internal thermal conductivity of hydrogel for efficient passive heat dissipation: Experimental study of a surface simulating a cooled photovoltaic panel

Energy Conversion and Management, Journal Year: 2024, Volume and Issue: 306, P. 118328 - 118328

Published: March 21, 2024

Language: Английский

---

Emerging Passive Cooling Technologies and Their Multidisciplinary Applications: An Integrative Review

International Journal of Energy Research, Journal Year: 2025, Volume and Issue: 2025(1)

Published: Jan. 1, 2025

The persistent rise in temperature driven by the emission of greenhouse gases presents a pressing contemporary challenge, fostering innovative cooling techniques. Currently, passive technologies have gained attention various research fields for their effectiveness combating heat accumulation. Compared to traditional active methods, which rely on electricity or other energy sources, significantly reduces consumption and demand. These demonstrated potential reductions ~1°C–24°C, translating substantial savings about 2–300 kWh/year. This paper uses an integrative review approach highlight fundamental principles design strategies underlying technologies, such as phase change materials, radiative cooling, evaporative cooling. Special emphasis is placed implementation, from preserving biological materials buildings, electronics, personal clothing. Passive methods offer cost over time due lower maintenance operational costs potentially simpler designs.

Language: Английский

---

Moisture Harvesting by the Structure Regulation of Hygroscopic Hydrogel for Energy and Water Sustainability

Advanced Electronic Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 9, 2025

Abstract Water and energy are the cornerstones of human development, with more than half world's population facing water scarcity issues. Atmospheric moisture is widely distributed around globe, rational utilization can create tremendous value. Here, sources hygroscopic materials, methods manufacturing hydrogels, properties these potential applications concluded. To make hydrogels high hydrophilicity, ultrasonic oscillation, freeze drying, spin coating be used as synthesis strategies. The main focus on characteristic parameters uptake, dehydration temperature, conductivity, mechanical stability, swelling behaviors, heat transfer coefficient. These unique features will affect performances assembles, devices, instruments. Subsequently, summarized, such harvesting splitting fuel production, dehumidification, thermal management in electronic solar evaporation, electricity production. Finally, future directions issues interest proposed to promote diverse development relational systems.

Language: Английский

---

Advancing Efficiency in Solar-Driven Interfacial Evaporation: Strategies and Applications

ACS Nano, Journal Year: 2025, Volume and Issue: unknown

Published: March 8, 2025

Solar-driven interfacial evaporation (SDIE) has emerged as a promising technology for addressing global water scarcity by utilizing solar-thermal conversion and at the air/material/water interface. The exceptional performance of these systems attracted significant interest; it is imperative to establish rigorous scientific standards evaluating effectiveness, optimizing system design, ensuring efficient practical applications. In this Review, we propose consensus criteria accurately assessing guiding future advancements. We then explore fundamental mechanisms driving synergy, emphasizing how material compositions, microscopic hierarchical structures, macroscopic three-dimensional spatial architecture designs enhance solar absorption photothermal conversion; balance heat confinement with pathway optimization; manage salt resistance; regulate enthalpy during vaporization. These matched coordination strategies are crucial maximizing target SDIE efficiency. Additionally, investigate applications technologies, focusing on cutting-edge progress versatile purification, combined atmospheric harvesting, collection, electric generation, deicing. Finally, highlight challenges exciting opportunities advancing research, efforts integrate principles, system-level collaboration, application-driven approaches boost sustainable highly energy technologies. By linking evaluation optimization influencing factors, offer comprehensive overview field outlook that promotes clean production synergistic

Language: Английский

---

Vertically Aligned One-Dimensional Crystal-Structured Sb₂Se₃ for High-Efficiency Flexible Solar Cells via Regulating Selenization Kinetics

ACS Applied Materials & Interfaces, Journal Year: 2023, Volume and Issue: 15(18), P. 22251 - 22262

Published: April 26, 2023

Recently, antimony selenide (Sb2Se3) has exhibited an exciting potential for flexible photoelectric applications due to its unique one-dimensional (1D) chain-type crystal structure, low-cost constituents, and superior optoelectronic properties. The 1D structure endows Sb2Se3 with a strong anisotropy in carrier transport lasting mechanical deformation tolerance. control of the crystalline orientation film is essential requirement device performance optimization. However, current state-of-the-art devices suffer from unsatisfactory control, especially (001) orientation, which chains stand vertically. Herein, we achieved unprecedented growth on Mo-coated mica substrate by balancing collision rate kinetic energy Se vapor particles surface Sb regulating selenization kinetics. Based this (001)-oriented film, high efficiency 8.42% record open-circuit voltage (VOC) 0.47 V obtained solar cells. vertical van der Waals gaps provide favorable diffusion paths atoms, results Se-rich state at bottom promotes situ formation MoSe2 interlayer between Mo Sb2Se3. These phenomena contribute back-surface field enhanced absorber layer quasi-Ohmic back contact, improving device's VOC collection carriers. This method provides effective strategy materials efficient devices.

Language: Английский

---

Passive thermal management of electronic devices using sorption-based evaporative cooling

Device, Journal Year: 2023, Volume and Issue: 1(6), P. 100122 - 100122

Published: Oct. 31, 2023

Thermal management is becoming the main bottleneck of electronic devices, especially in situations where only passive strategies are available, such as base stations and smartphones. In this article, we develop passive, sorption-based evaporative cooling based on a salt-embedded composite sorbent further apply method to state-of-the-art 5G station. Both experimental simulation results demonstrate that proof concept finned heat sink could achieve an exceptional equivalent power 602 W/m2, which accounts for about 22% total dissipation capacity bring maximum 20°C temperature reduction compared with original device. An additional experiment well-developed practical station demonstrates proposed strategy still 5°C–8°C reduction. Sorption-based greatly expand potential create new opportunities future electronics.

Language: Английский

---

Mussel-Inspired Self-Adhesive and Tough Hydrogels for Effectively Cooling Solar Cells and Thermoelectric Generators

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(15), P. 18898 - 18907

Published: April 8, 2024

Adhesive hydrogel-based evaporative cooling, which necessitates no electricity input, holds promise for reducing energy consumption in thermal management. Herein, inspired by the surface attachment of mussel adhesive proteins via abundant dynamic covalent bonds and noncovalent interactions, we propose a facile strategy to fabricate self-adhesive cooling hydrogel (Li-AA-TA-PAM) using copolymer acrylamide (AM) acrylic acid (AA) as primary framework. The monomers formed hydrogen between their carboxyl amide groups, while tannic (TA), rich catechol enhances adhesion through bonding. demonstrated strong various material surfaces, including plastic, ceramic, glass, metal. Even under high-speed rotation, it still maintains robust adhesion. strength Li-AA-TA-PAM aluminum foil reached an impressive value 296.875 kPa. Interestingly, excellent contact caused accelerates heat transfer, resulting rapid performance, mimics perspiration mammals. Lithium bromide (LiBr) with hydroactively sorptive sites is introduced enhance sorption kinetics, thereby extending effective period. Consequently, operation temperature commercial polycrystalline silicon solar cells was reduced 16 °C illumination 1 kW m–2, corresponding efficiency conversion increased 1.14%, enhancing output properties life span cells. demonstrates potential refrigeration applications viscous gels.

Language: Английский

---