Journal of Materials Science, Год журнала: 2024, Номер unknown
Опубликована: Дек. 24, 2024
Язык: Английский
Advanced Materials Interfaces, Год журнала: 2023, Номер 10(25)
Опубликована: Июнь 14, 2023
Abstract Liquid unidirectional transport exhibits critical applications from water harvesting to microfluidics. Despite extensive progress, implementation of liquid that is not subjected the surface tension and injecting velocity also remains a great challenge. Here, tilted‐sector arrayed tube for excellent proposed applies vast width domain velocity. In addition, direction abnormally against tilted structure, in stark contrast traditional understanding along direction. This unique caused by synergistic effects sectors structures, which induce 3D propagation mode as well large Laplace pressure asymmetry between front rear sides liquid. Moreover, antigravity climbing, circuit isolating, chemical reaction controlling can be achieved based on transport. It envisioned design extensively applied microfluidics, lab‐on‐a‐chip devices, biochemistry microreactors.
Язык: Английский
Процитировано
9
Materials Horizons, Год журнала: 2024, Номер unknown
Опубликована: Янв. 1, 2024
An electrically switched asymmetric interface can be used for direction-controlled liquid transport and fine droplet splitting on anisotropic groove-microstructured electrodes, which is promising in controllable separation microfluidic devices.
Язык: Английский
Процитировано
3
International Journal of Multiphase Flow, Год журнала: 2025, Номер unknown, С. 105133 - 105133
Опубликована: Янв. 1, 2025
Язык: Английский
Процитировано
0
Droplet, Год журнала: 2025, Номер unknown
Опубликована: Март 5, 2025
Abstract Liquid directional transport surfaces have the ability to control movement of liquids in specific directions, making them highly applicable various fields such as heat transfer, fluid management, microfluidics, and chemical engineering. This review aims summarize research progress on liquid spacecraft management devices. Among different technologies available, certain surface design methods based principles dynamics under microgravity show remarkable potential for space management. Precise is crucial in‐orbit operation spacecraft. Utilizing tension effects represents most direct effective approach achieve space. The intrinsic flow characteristics two‐dimensional plane are advantageous managing fluids confined spaces By analyzing functional these surfaces, we assess their feasibility integration into Considering features environment, this also provides guidelines suitable use devices, serving a significant reference future research.
Язык: Английский
Процитировано
0
ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(9), С. 11984 - 11996
Опубликована: Фев. 26, 2024
Comprehending and controlling the behavior of bubbles on solid surfaces is significant importance in various fields including catalysis drag reduction, both industrially scientifically. Herein, Inspired by superaerophilic properties lotus leaf surface, a series asymmetrically patterned aerophilic were prepared utilizing facile mask-spraying method for directional transport underwater bubbles. The ability to undergo self-driven transportation an asymmetric pattern attributed natural tendency move toward regions with lower surface energy. In this work, microstructure demonstrated as critical element that influences characteristic affects energy barrier forming continuous gas film final regions. We classify three distinct bubble behaviors which align different evolution states: Model I, II, III. Furthermore, difference between forms gas–gas merging, gas–liquid microreaction specific destination multiple paths can be easily realized preinjecting region. This work provides new view microevolutionary process diffusion, transport, merging upon contact surface.
Язык: Английский
Процитировано
2
Advanced Functional Materials, Год журнала: 2024, Номер unknown
Опубликована: Ноя. 12, 2024
Abstract Proton Exchange Membrane Fuel Cells (PEMFC) consist of channels that require efficient drainage for optimum performance. However, it remains a grand challenge to achieve both directed and high‐speed active in PEMFC channels. This greatly limits current Herein, inspired by respiratory cilia, bioinspired structural design strategy is introduced into the channel surface significantly enhance its droplet transport efficiency. Two artificial cilia arrays are fabricated named as plane‐bottom array (PACA) concave‐bottom (CACA) according their respective shapes. PACA demonstrates stable directional transport. The speed reaches high 86 mm s −1 with volumes ranging from 10 20 µL. surpassed CACA. Its 163 50 experimental evaluation diameter sizes shows CACA can be tuned enhancing electrochemical CACA‐8 achieves maximum power density (0.5339 W cm −2 ) at 1.1864 A , representing an 18.70% increase compared conventional work provides promising liquid water PEMFC.
Язык: Английский
Процитировано
2
Advanced Functional Materials, Год журнала: 2024, Номер unknown
Опубликована: Дек. 15, 2024
Abstract The flexible manipulation and directional transport of fluids, including droplets bubbles, are foundational to numerous applications. Fluid based on external field stimulation fixed structures has a wide range applications in both natural artificial materials, such as water collection, electrolysis, droplet energy medical diagnosis, etc. However, bubbles exhibit opposite wettability, the inherent opposition between hydrophilicity hydrophobicity presents significant challenge developing system capable manipulating bubbles. Here, inspired by multiple organisms, magnetic‐actuated Janus spherical robot with switchable wettability driving core or solid‐like slippery surface platform is proposed, which achieves dual programmable Furthermore, can achieve transition from superhydrophobic superhydrophilic within 8 min under UV light. It noteworthy that demonstrates superior capabilities speed carrier volume liquid (bubbles), reach 18 (13) cm s −1 800 (500) µL, respectively. This strategy provides novel reliable method for automated broadens their
Язык: Английский
Процитировано
2
ACS Applied Engineering Materials, Год журнала: 2023, Номер 1(10), С. 2676 - 2684
Опубликована: Окт. 3, 2023
Considered like a fully renewable and clean energy carrier with the highest density, dihydrogen (H2) constitutes best alternative to fossil fuels for ensuring sustainability of energy. This technologically industrially relevant vector can be produced by water electrolysis that is now widely recognized as an eco-friendly, scalable, carbon-free route. In context, alkaline affordable technology because it allows use transition metals electrocatalysts both hydrogen (HER) oxygen (OER) evolution reactions. Here, combining catalytically active metal alloys (NiFe NiCo) 3D printing technique, namely, selective laser melting (SLM), enables access ca. 25 cm2 microstructured cylindrical electrodes, efficiently promoting HER OER. NiCo found most efficient electrode HER, overpotential 210 mV at 10 mA cm–2. It also stable when studied in operation during prolonged electrolysis, potential change only 40 after 140 h 50 cm–2 (1.25 A). Regarding OER, NiFe shows catalytic activity 300 greatest stability electrolysis-induced 30 mV. Further surface characterization techniques (scanning electron microscopy (SEM), dispersive X-ray spectroscopy (EDS), contact angle measurements, analysis electrogenerated gas bubbles) are used monitor chemical changes get valuable information on bubble dynamics. Interestingly, beneficial enhancing hydrophilicity and/or aerophobicity thus facilitating detachment H2 or O2 bubbles.
Язык: Английский
Процитировано
5
Computers & Fluids, Год журнала: 2024, Номер 279, С. 106341 - 106341
Опубликована: Июнь 15, 2024
Язык: Английский
Процитировано
1
Surfaces and Interfaces, Год журнала: 2024, Номер 51, С. 104677 - 104677
Опубликована: Июнь 25, 2024
Язык: Английский
Процитировано
1