High thermally insulating and lightweight Cr2O3 − Al2O3 aerogel with rapid–cooling property

Gao, Bingying; Cao, Jinyao; Yao, Chao; Mao, Linqiang

doi:10.1016/j.apsusc.2022.153044

Cited by 11 publications

(4 citation statements)

References 48 publications

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“…Furthermore, it can be found that the cross-linking of different metal ions does not affect the thermal conductivity of aerogel, which may be because ion exchange does not affect the overall structure of aerogel, which is consistent with SEM images. The thermal conductivity of SA/PA Mn + aerogels is lower than some reported aerogels, such as starch-based aerogels (0.125 W/(mÁK)), 46 sodium alginate-based aerogel (0.06 $ 0.1 W/(mÁK)). 47…”

Section: Heat Insulationmentioning

confidence: 66%

Preparation of a novel bio‐based aerogel with excellent hydrophobic flame‐retardancy and high thermal insulation performance

Zhang,

Fu,

Qin

et al. 2024

J of Applied Polymer Sci

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Sodium‐alginate‐based aerogels possess wide prospects in the fields of packaging, aerospace, industrial construction and transportation because of their environmental compatibility and thermal insulation, but it is still a challenge to obtain a sodium alginate‐based aerogel with high flame retardancy and good thermal insulation. Herein, a sodium‐alginate‐based aerogel with high flame retardancy, thermal insulation and good hydrophobic properties was prepared by two‐step crosslinking strategy of phytic acid and metal ions and liquid phase deposition of trans‐cinnamic acid. As a result, the prepared SA/PA Mn+ aerogels obtained excellent flame retardancy (UL‐94 V‐0, LOI 50.1%) and rapid self‐extinguishing, and SA/PA Mn+ aerogels obtained good hydrophobic ability (CA = 134.2°). In addition, the mechanical properties of SA/PA Mn+ aerogels have also been improved, the compressive modulus increased from 0.66 to 6.37 MPa, and the specific modulus increased from 15.7 to 140.2 MPa cm −3 g−1. This research broadens the application of bio‐based flame‐retardant aerogels in the fields of packaging, aerospace, industrial construction and transportation.

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Section: Heat Insulationmentioning

confidence: 66%

Preparation of a novel bio‐based aerogel with excellent hydrophobic flame‐retardancy and high thermal insulation performance

Zhang,

Fu,

Qin

et al. 2024

J of Applied Polymer Sci

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“…Furthermore, we tested the flammability of the gel electrolyte and compared it with a conventional gel electrolyte based on poly(ethylene oxide) (PEO). As demonstrated in Figure 4j and Video S2 (Supporting Information), the electrolyte in this work remains completely unaffected even after 20 s of contact with flames generated by a windproof lighter up to 1300 °C, [ 33 ] in sharp contrast to the PEO‐based electrolyte which bursts into flames after only 3 s.…”

Section: Resultsmentioning

confidence: 97%

An Ultrafast, Energy‐Efficient Electrochromic and Thermochromic Device for Smart Windows

Deng

Zhu²,

Wang

et al. 2023

Advanced Materials

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Smart windows nowadays undertake the esteemed obligation of reducing energy consumption as well as upgrading living experience. This project aims to devise a smart window that responds to both electricity and heat, with the intention of achieving energy efficiency, privacy preservation, and enhanced decorative attributes. Through the implementation of a novel electrochromic material design, coupled with the optimization of electrochromic devices (ECDs), a high‐performance ECD is obtained, demonstrating coloring/bleaching time of 0.53/0.16 s, a transmittance modulation of 78% (from 99% to 21%), and superior performance in six dimensions. Furthermore, temperature‐responsive units and an ionic liquid are incorporated into the electrolyte system to create a novel thermochromic gel electrolyte with transmittance modulation from 80% to 0%, and excellent thermal insulation (6.4 °C reduction). Ultimately, an electro‐ and thermochromic device is developed, featuring an ultrafast color‐switching speed of 0.82/0.60 s and multiple working modes. Overall, this work showcases a prospective design pathway for the development of next‐generation ultrafast‐switching, and energy‐efficient intelligent windows.

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“…S16b, ESI †), which indicates better thermal radiation to the surrounding atmosphere to rapidly create a hot area and increase heat utilization. 52 In addition, water can penetrate from the KFs side (Fig. S7, ESI †), which provides a spontaneous water supply.…”

Section: Water Pumping For Evaporationmentioning

confidence: 99%

Spontaneous thermal energy transfer and anti-gravitational water pumping using Al₂O₃ fiber-enhanced flexible nonwoven material as a high-performance and self-floating solar evaporator

Dai,

Wang,

Yang

et al. 2024

Mater. Horiz.

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High thermally insulating and lightweight Cr2O3 − Al2O3 aerogel with rapid–cooling property

Cited by 11 publications

References 48 publications

Preparation of a novel bio‐based aerogel with excellent hydrophobic flame‐retardancy and high thermal insulation performance

Preparation of a novel bio‐based aerogel with excellent hydrophobic flame‐retardancy and high thermal insulation performance

An Ultrafast, Energy‐Efficient Electrochromic and Thermochromic Device for Smart Windows

Spontaneous thermal energy transfer and anti-gravitational water pumping using Al₂O₃ fiber-enhanced flexible nonwoven material as a high-performance and self-floating solar evaporator

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High thermally insulating and lightweight Cr2O3 − Al2O3 aerogel with rapid–cooling property

Cited by 11 publications

References 48 publications

Preparation of a novel bio‐based aerogel with excellent hydrophobic flame‐retardancy and high thermal insulation performance

Preparation of a novel bio‐based aerogel with excellent hydrophobic flame‐retardancy and high thermal insulation performance

An Ultrafast, Energy‐Efficient Electrochromic and Thermochromic Device for Smart Windows

Spontaneous thermal energy transfer and anti-gravitational water pumping using Al2O3 fiber-enhanced flexible nonwoven material as a high-performance and self-floating solar evaporator

Contact Info

Product

Resources

About

Spontaneous thermal energy transfer and anti-gravitational water pumping using Al₂O₃ fiber-enhanced flexible nonwoven material as a high-performance and self-floating solar evaporator