Perspective on phase change composites in high-efficiency solar-thermal energy storage

Applied Physics Letters, Journal Year: 2025, Volume and Issue: 126(5)

Published: Feb. 3, 2025

To clarify future research directions, this study first analyzes the heat transfer process of solar-thermal conversion and then reviews phase change composites for high-efficiency harnessing solar energy. The focus is on enhancing absorption conduction while aiming to suppress reflection, radiation, convection. Most advancements have concentrated improving thermal conductivity, reducing aforementioned unfavorable processes remains less explored. In current research, best results show that efficiency has approached theoretical limit (100%), a typical conductivity reached 33.5 W/(m·K). However, further enhancement challenge, highlighting need structural modifications grafting. Other factors hindering received limited attention warrant in-depth investigation, with potential reduce reliance fossil fuels contribute environmental sustainability.

Language: Английский

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Cellulose nanofibrous/MXene aerogel encapsulated phase change composites with excellent thermal energy conversion and storage capacity

Energy, Journal Year: 2022, Volume and Issue: 262, P. 125505 - 125505

Published: Sept. 26, 2022

Language: Английский

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Patternable Nanocellulose/Ti₃C₂T_x Flexible Films with Tunable Photoresponsive and Electromagnetic Interference Shielding Performances

ACS Applied Materials & Interfaces, Journal Year: 2022, Volume and Issue: 14(30), P. 35040 - 35052

Published: July 21, 2022

Nanocellulose-mediated MXene composites have attracted widespread attention in the fields of sustainable energy, wearable sensors, and electromagnetic interference (EMI) shielding. However, effects different nanocelluloses on multifunctional properties nanocellulose/Ti3C2Tx still need further exploration. Herein, we use three types nanocelluloses, including bacterial cellulose (BC), nanocrystals (CNCs), 2,2,6,6-tetramethylpiperidin-1-yloxy (TEMPO)-oxidized nanofibers (TOCNs), as intercalation to link Ti3C2Tx nanosheets via a self-assembly process, improving dispersibility, film-forming ability, mechanical properties, performances nanocelluloses/Ti3C2Tx hybrids through electrostatic forces hydrogen bonding. The optimized ultrathin (∼40 μm) TOCN/Ti3C2Tx film integrates excellent tensile strength (∼98.89 MPa), long-term stability (during deformation water erosion), favorable photoelectric response (photosensitivity up 2620%), temperature (reaching 163 °C only 12 s). Laser-cutting patterned films are assembled into flexible electronics, exhibiting splendid photoresponse tunable energy shielding capability (>96.4%) related variation content at film–gel electrolyte interface. Multifunctional devices based composite provide novel pathway rationally design EMI with photothermal conversion.

Language: Английский

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Self-healed inorganic phase change materials for thermal energy harvesting and management

Applied Thermal Engineering, Journal Year: 2022, Volume and Issue: 219, P. 119423 - 119423

Published: Oct. 13, 2022

Language: Английский

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Scalable, ultra-high stretchable and conductive fiber triboelectric nanogenerator for biomechanical sensing

Nano Energy, Journal Year: 2023, Volume and Issue: 109, P. 108291 - 108291

Published: Feb. 27, 2023

Language: Английский

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MXene/rGO grafted sponge with an integrated hydrophobic structure towards light-driven phase change composites

Composites Part B Engineering, Journal Year: 2023, Volume and Issue: 264, P. 110885 - 110885

Published: July 7, 2023

While phase change materials (PCMs) have great potential for use in solar energy storage, they suffer from a lack of shape stability and conversion ability. In this study, proper amination melamine sponge (MS) was designed to construct an integrated MXene reduced graphene oxide (rGO) structure. The MXene/rGO layer is sufficiently robust endure the capillary pressure caused by solvent evaporation during airdrying process. addition, reduction GO using oleylamine (OA) contributes protection oxidation preventing surface nanosheets being exposed oxygen moisture. as-designed sponges been shown effectively enhance thermophysical photo absorption properties paraffin wax (PW) composite PCM. with highest amount maintained 93.3% latent heat pure PW. photothermal storage efficiency can reach as high 93.0% at content around 1%. A thermal conductivity enhancement 66.9% be achieved compared MS/PW composite. Therefore, study presents new approach designing high-performance composites waste-heat recovery applications.

Language: Английский

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Architecting the High‐Entropy Oxides on 2D MXene Nanosheets by Rapid Microwave‐Heating Strategy with Robust Photoelectrochemical Oxygen Evolution Performance

Small, Journal Year: 2023, Volume and Issue: 19(27)

Published: March 28, 2023

High-entropy oxides (HEO) have recently concerned interest as the most promising electrocatalytic materials for oxygen evolution reactions (OER). In this work, a new strategy to synthesis of HEO nanostructures on Ti3 C2 Tx MXene via rapid microwave heating and subsequent calcination at low temperature is reported. Furthermore, influence loading investigated toward OER performance with without visible-light illumination in an alkaline medium. The obtained HEO/Ti3 -0.5 hybrid exhibited outstanding photoelectrochemical ability overpotential 331 mV 10 mA cm-2 small Tafel slope 71 dec-1 , which exceeded that commercial IrO2 catalyst (340 ). particular, fabricated water electrolyzer anode required less potential 1.62 V under illumination. Owing strong synergistic interaction between MXene, has great electrochemical surface area, many metal active sites, high conductivity, fast reaction kinetics, resulting excellent performance. This study offers efficient synthesizing HEO-based produce high-value hydrogen fuel.

Language: Английский

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Recent advances in the development of nanofiber-based aerogel for oil-water separation: A review

Fuel, Journal Year: 2023, Volume and Issue: 354, P. 129338 - 129338

Published: Aug. 3, 2023

Language: Английский

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Progress and challenges of emerging MXene based materials for thermoelectric applications

iScience, Journal Year: 2023, Volume and Issue: 26(5), P. 106718 - 106718

Published: April 26, 2023

To realize sustainable development, more and countries forwarded carbon neutrality goal. Accordingly, improving the utilization efficiency of traditional fossil fuel is an effective strategy for this great Keeping in mind, developing thermoelectric devices to recover waste heat energy resulted consumption process demonstrated be promising. High performance require advanced materials. MXenes are a kind 2D materials with layered structure, which demonstrate excellent owing their unique physical, mechanical, chemical properties. Also, substantial achievement has been gained during past few years synthesizing MXene based devices. In review, mainstream synthetic routes from etching MAX were summarized. Significantly, current state challenges research on thermoelectrics explored, including pristine composites.

Language: Английский

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MXene/d-Mannitol aerogel phase change material composites for medium-temperature energy storage and solar-thermal conversion

Journal of Energy Storage, Journal Year: 2023, Volume and Issue: 67, P. 107498 - 107498

Published: May 6, 2023

Language: Английский

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