Superhydrophobic Shape-Stable Phase-Change Materials Based on Artificially Cultured Diatom Frustule-Derived Porous Ceramics

Sun, Haoyang; Yang, Ye; Li, Tao; Lyu, Sha; Chen, Fengfan; Li, Maoning; Zhang, Chentao; Li, Dandan; Sun, Dazhi

2022-08-01

10.1021/acssuschemeng.2c03448

ACS Sustainable Chemistry & Engineering   影响因子和分区

2168-0485

Solid-liquid phase-change materials (PCMs) offer exciting potential for energy conservation, but they suffer from a vital drawback of significant leakage. To overcome this issue, we develop a new strategy to obtain high-performance leakage-proof shape-stable phase-change materials (ss-PCMs) by the combina-tion of an inner porous frame and outer superhydrophobic covers. Paraffin wax as PCM was first trapped into artificially cultured diatom frustule-derived porous ceramics, which was then encapsulated using diatom frustule-based superhydrophobic coat-ings. The prepared ss-PCMs exhibit a wax loading of 52.28 wt % with a melting enthalpy of 117.5 Jmiddotg-1 and a high stability even after 500 thermal cycles as well as a 72.7% increase in thermal conductivity. In addition, the prepared ss-PCMs show a compressive strength of as high as 13.0 MPa. The superhydrophobic coatings provide ss-PCMs with superior chemical resistance and excellent mechanical robustness under long-distance abrasion, cyclic tape-peeling, and water jet impact. This porous ceramic-embedded, superhydrophobic coating-encapsulated strategy for obtaining high-performance ss-PCMs is expected to find potential applications in energy-efficient buildings, thermal management in electronic devices, self-cleaning materials, and so on.

diatom frustule shape-stable phase-change materials leakage-proof porous ceramics superhydrophobic coatings

SCI ; EI

英语

第一 ; 通讯

Guangdong Provincial Key Laboratory Program[2021B1212040001]

Chemistry ; Science & Technology - Other Topics ; Engineering

Chemistry, Multidisciplinary ; Green & Sustainable Science & Technology ; Engineering, Chemical

WOS:000847902600001

AMER CHEMICAL SOC

20223612700124

Coatings ; Compressive strength ; Energy efficiency ; Hydrophobicity ; Thermal conductivity

Energy Conservation:525.2 ; Thermodynamics:641.1 ; Coating Materials:813.2 ; Physical Properties of Gases, Liquids and Solids:931.2

Web of Science

Southern Univ Sci & Technol, Dept Mat Sci & Engn, Guangdong Prov Key Lab Funct Oxide Mat & Devices, Shenzhen 518055, Guangdong, Peoples R China

Sun, Haoyang,Yang, Ye,Li, Tao,et al. Superhydrophobic Shape-Stable Phase-Change Materials Based on Artificially Cultured Diatom Frustule-Derived Porous Ceramics[J]. ACS Sustainable Chemistry & Engineering,2022.

Sun, Haoyang.,Yang, Ye.,Li, Tao.,Lyu, Sha.,Chen, Fengfan.,...&Sun, Dazhi.(2022).Superhydrophobic Shape-Stable Phase-Change Materials Based on Artificially Cultured Diatom Frustule-Derived Porous Ceramics.ACS Sustainable Chemistry & Engineering.

Sun, Haoyang,et al."Superhydrophobic Shape-Stable Phase-Change Materials Based on Artificially Cultured Diatom Frustule-Derived Porous Ceramics".ACS Sustainable Chemistry & Engineering (2022).