Slippery liquid-infused porous surfaces for high-performance moisture-responsive actuators DOI

Zhao‐Di Chen,

Qiang Wang, Hao Zhou

et al.

Applied Physics Letters, Journal Year: 2024, Volume and Issue: 125(21)

Published: Nov. 18, 2024

Smart actuators convert environmental changes into mechanical energy. However, the actuation performance and robustness of smart are limited by weak interlaminar force poor adhesion between layers. Herein, we report moisture-responsive integrated with slippery liquid-infused porous surfaces (SLIPSs). The difference in adsorption capacity water molecules further increases because SLIPS layer is isolated from air lubricating oil film. Compared initial (graphene oxide/candle soot, GO/CS) bilayer film, improved bending 12.6% shortened response–recovery time one-third. Moreover, GO/SLIPS actuator exhibited excellent long-term stability over 10 000 cycles due to oil's capillary fluidity. In addition, a moisture-controlled water-transport device based on film was demonstrated.

Language: Английский

Efficient anti-frosting enabled by femtosecond laser-induced salt-philic and superhydrophobic surface DOI
Qinwen Deng, Tingni Wu, Kai Yin

et al.

Applied Physics Letters, Journal Year: 2024, Volume and Issue: 125(12)

Published: Sept. 16, 2024

Frost formation is a normal phase transition phenomenon in cold climates, while it usually brings certain troubles to human lives and production. Therefore, of great significance develop frost resistant materials key technologies. Here, salt-philic superhydrophobic surface designed on PDMS substrate by femtosecond laser direct writing technology combination with salt–ethanol–water mixtures droplet treatment. The laser-treated embedded salt (LTP-S) exhibits superhydrophobicity, which alone property that can resist the enables self-cleaning effect. Meanwhile, coating further enhances resistance reducing freezing point temperature. LTP-S revealed perform well frosting-defrosting cycles, washing resistance, chemical corrosion heating long-term air exposure tests as highly efficient stable anti-frosting surface. This work demonstrates facile strategy fabricate for anti-frosting.

Language: Английский

Citations

17
All-Season Passive Thermal Management Film with Multifunctionality for Efficient Radiative Cooling and Solar Heating DOI
Tingni Wu, Kai Yin, Yuchun He

et al.

The Journal of Physical Chemistry Letters, Journal Year: 2025, Volume and Issue: unknown, P. 3654 - 3663

Published: April 4, 2025

Thermal radiation management is an important aspect of thermal engineering and plays a crucial role in various industrial environmental applications. However, either cooling or heating devices alone can exacerbate all-season consumption during hot summers cold winters. We have designed dual-mode device that switch modes by pull-out method, with femtosecond laser-induced graphene (LIG) on the surface polyimide membrane as SiO2 hollow microsphere coating surface. Due to multi-interface reflection between microspheres air, high reflectivity (93%) 97% infrared emissivity be obtained. Under solar irradiation intensity 75 J/cm2, temperature decrease 6.3 °C realized. On other hand, LIG achieve ultra-ambient increase 35 due its excellent light absorption characteristics (ε ≈ 97%) conductivity. Temperature regulation achieved switching modes, which shows great promise agriculture for food goods preservation. Also, this design expected offer new approach energy efficient architecture.

Language: Английский

Citations

1
Stearic acid/CNT-wrapped superhydrophobic/oleophilic sponge with Joule-heating effect for efficient removal of crude oil DOI

Duanhong Yan,

Kai Yin, Yao Liu

et al.

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

Published: Feb. 3, 2025

Crude oil spill accidents cause extreme environmental damage, with huge economic costs that include the loss of resources. Despite advances in conventional cleanup technology, such as dispersants, absorbents, and skimmers, there is still a need for more efficient solutions. In this study, we introduce Joule-heated stearic acid/carbon nanotube-wrapped polyurethane sponge (SCPU) rapid all-weather recovery leaked crude oil. SCPU both hydrophobic oleophilic electrically conductive. When 6 V were applied across SCPU, surface temperature increased to 146 °C within 70 s, which reduced viscosity shortened time by over 99%. addition, can continuously recover floating on water when connected peristaltic pump. This has high adsorption capacity, scalable preparation method, mechanically stable, thus expected provide an practical solution responding accidents.

Language: Английский

Citations

1
Enhancing atmospheric water harvesting on hydrophilic-superhydrophobic hybrid surfaces through wettability gradient and synergistic diversion channel DOI
Zhongjun Cheng, Jinping Qu, Yijun Liu

et al.

Materials Today Physics, Journal Year: 2025, Volume and Issue: 52, P. 101691 - 101691

Published: March 1, 2025

Language: Английский

Citations

0
Slippery liquid-infused porous surfaces for high-performance moisture-responsive actuators DOI

Zhao‐Di Chen,

Qiang Wang, Hao Zhou

et al.

Applied Physics Letters, Journal Year: 2024, Volume and Issue: 125(21)

Published: Nov. 18, 2024

Smart actuators convert environmental changes into mechanical energy. However, the actuation performance and robustness of smart are limited by weak interlaminar force poor adhesion between layers. Herein, we report moisture-responsive integrated with slippery liquid-infused porous surfaces (SLIPSs). The difference in adsorption capacity water molecules further increases because SLIPS layer is isolated from air lubricating oil film. Compared initial (graphene oxide/candle soot, GO/CS) bilayer film, improved bending 12.6% shortened response–recovery time one-third. Moreover, GO/SLIPS actuator exhibited excellent long-term stability over 10 000 cycles due to oil's capillary fluidity. In addition, a moisture-controlled water-transport device based on film was demonstrated.

Language: Английский

Citations

1