Experimental study of novel paraffin-fatty acid eutectic mixtures for thermal management of electronic devices

Journal of Energy Storage, Journal Year: 2024, Volume and Issue: 84, P. 110846 - 110846

Published: Feb. 14, 2024

Language: Английский

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All‐Weather Solar‐Powered Desalination and Synchronous Cs⁺ Extraction for Salt‐Lake Water Enabled by Crown‐Ether‐Decorated Phase‐Change Microcapsules

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

Published: July 29, 2024

Abstract Solar‐powered interfacial evaporation is recognized as an emerging technology for desalination of salt‐lake water but suffers from insufficient mass under intermittent sunlight illumination. Meanwhile, contains abundant noble metal ions; however, there no effective strategy to extract them during evaporation. Hereby, evaporator integrated with crown‐ether‐functionalized phase‐change microcapsules (Crown‐MicPCM) designed realize all‐weather and synchronous caesium ion (Cs + ) extraction water. Crown‐MicPCM constructed n ‐docosane core photothermal energy storage, a magnetic SiO 2 /Fe 3 O 4 composite shell easy recyclability, polydopamine inner coat absorption, crown ether outer selective Cs adsorption. Through integrating the functions solar harvest, latent heat adsorption within Crown‐MicPCM, such innovative design boosts performance developed significantly. The Crown‐MicPCM‐integrated exhibits considerable improvement in freshwater production extraction, achieving capacity 32.6 mg g −1 rate 1.43 kg m −2 h one‐sun Compared without material, obtains increase yield by 47% efficiency 12% natural

Language: Английский

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Photothermal phase change material microcapsules via cellulose nanocrystal and graphene oxide co-stabilized Pickering emulsion for solar and thermal energy storage

Science China Materials, Journal Year: 2024, Volume and Issue: 67(10), P. 3225 - 3235

Published: Aug. 12, 2024

Language: Английский

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Vertically aligned cellulose nanofiber/carbon nanotube aerogel-infused epoxy nanocomposites for highly efficient solar-thermal-electric conversion

Journal of Material Science and Technology, Journal Year: 2024, Volume and Issue: 214, P. 313 - 321

Published: July 20, 2024

Solar-driven thermo-electric generation (STEG) emerges as a promising solution to mitigate the global energy shortage. However, practical application of conventional photothermal materials equipped with STEG is limited due low solar thermal conversion efficiency. Herein, we fabricated an epoxy resin (EP) nanocomposite, EP/CCA80, excellent photo-thermal-electric properties by embedding vertically aligned aerogel consisting cellulose nanofibers (CNF) and carboxylated multi-walled carbon nanotubes (CMWCNTs) into transparent EP matrix. EP/CCA80 composites possessed broad light absorption range from 200 nm 2500 properties. Under illumination 1.0 kW m–2, achieved notable stable temperature 93.2°C efficiency up 54.35% only 0.65 wt% CMWCNTs inclusion. Additionally, coupled thermoelectric (TE) devices, composite facilitated significant difference voltage output 25.3°C 160.29 mV (1.0 m–2), respectively, which could power small fan rotate at speed 193 min–1. Such are poised offer viable solutions for enhancing accessibility in remote regions, thereby contributing reduction shortages environmental degradation.

Language: Английский

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Thermal uniformity analysis of a hybrid battery pack using integrated phase change material, metal foam, and counterflow minichannels

Applied Thermal Engineering, Journal Year: 2024, Volume and Issue: 259, P. 124910 - 124910

Published: Nov. 12, 2024

Language: Английский

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Nanomaterial-based textiles for personal thermal management: Perspectives of the fabrications and properties

Materials Today Communications, Journal Year: 2024, Volume and Issue: 40, P. 109818 - 109818

Published: July 11, 2024

Language: Английский

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Novel In-Situ Synthesis Techniques for Cellulose-Graphene Hybrids: Enhancing Electrical Conductivity for Energy Storage Applications

Recent Progress in Materials, Journal Year: 2025, Volume and Issue: 07(01), P. 1 - 50

Published: Jan. 21, 2025

This study investigates the hypothesis that diverse synthesis techniques can yield cellulose-graphene hybrids with tailored properties for specific applications, enabling advancements in flexible electronics, energy storage, environmental remediation, and biomedical devices. We examined compared multiple methods, including chemical reduction, in-situ synthesis, green using natural reducing agents, solvent-assisted approaches, hydrothermal solvothermal techniques, mechanical treatments, electrochemical exfoliation. Each method was assessed its impact on material properties, scalability, footprint. Chemical reduction resulted uniform graphene dispersion superior electrical conductivity, I(D)/I(G) ratio Raman spectra indicating successful of oxide (GO) to reduced (rGO). Green particularly cow urine as a agent, provided an eco-friendly alternative, leveraging constituents reduce GO rGO while minimizing impact. Mechanical treatments effectively prepared cellulose microfibers compatibility graphene, enhancing interfacial interactions stress transfer resulting composites. Solvent-assisted allowed precise tuning composite through selection appropriate solvents processing conditions. Hydrothermal methods produced high purity uniformity under high-temperature high-pressure conditions, facilitating promoting strong bonding between graphene. Electrochemical exfoliation generated high-quality controlled characteristics, allowing it produce fewer defects other methods. Findings reveal synthesized these exhibit significant improvements thermal stability, strength. For instance, even low additions (3 wt%) surpassed percolation threshold, conductivity 1.9 × 10^-5 S cm^-1 cellulose/rGO (8 aerogels. These enhanced underscore importance carefully selecting optimize characteristics target applications. The research provides comprehensive understanding synthesis-method-property relationships, offering valuable insights development advanced hybrid materials highlighting their transformative potential across various high-impact fields, storage devices, remediation systems,

Language: Английский

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Negative Poisson’s ratio structural cellulose aerogel with excellent impact resistance

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160492 - 160492

Published: Feb. 1, 2025

Language: Английский

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Efficient Fabrication of Highly Elastic, Self-Adhesive MXene-Doped Lignin-Based Conductive Hydrogels for Flexible Strain Sensing Applications

ACS Applied Electronic Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 20, 2025

Language: Английский

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A Flexible and Adhesive Strain Sensor Based on Deep Eutectic Solvents for Deep Learning-Assisted Signal Recognition

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: April 24, 2025

Flexible wearable electronic devices have garnered significant interest due to their inherent properties, serving as replacements for traditional rigid metal conductors in personal healthcare monitoring, human motion detection, and sensory skin applications. Here, we report a preparation strategy self-adhesive, ultrahigh stretchable DGel based on poly(acrylic acid) (PAA). The resulting exhibits high tensile strength (approximately 2.16 MPa) an stretchability 5622.14%). More importantly, these meticulously designed DES gels demonstrate signal recognition capabilities under strains ranging from 1 500%. also shows excellent cyclic stability durability (5000 cycles at 100% strain), exhibiting superior electromechanical performance strain sensor. of is attributed the synergistic effects chemical physical cross-linking within gel. Additionally, can be effortlessly assembled into sensors. By integration flexible sensing with deep learning, fabricated touch system achieves identification accuracy up 99.33%. This advancement offers new insights designing novel variety applications, including tissue engineering, sensing, devices.

Language: Английский

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