Speaker
Description
Spontaneous imbibition driven by capillary forces in nanoporous media underpins a wide range of natural and engineered processes, including water transport in plants and soils, oil recovery in rocks, drug delivery, and nanofabrication. Classical porous-media theories predict that evaporation limits imbibition by establishing a dynamic balance between capillary inflow and evaporative outflow, that precipitation blocks pore connectivity and suppresses further liquid advance. Here, we show that imbibition in nanoporous media can depart markedly from these classical expectations. Using a combination of in situ characterization techniques, multiscale imaging, and modeling, we investigate the coupled roles of capillary flow, evaporation, and precipitation in governing liquid transport. Our results reveal previously unrecognized mechanisms controlling imbibition dynamics and interfacial evolution in nanoporous systems, providing new insight into fluid transport in porous media and suggesting opportunities for manipulating capillary-driven flows in energy, environmental, materials, and biomedical applications.
| Country | China |
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