“On-The-Fly” Synthesis of Self-Supported LDH Hollow Structures Through Controlled Microfluidic Reaction-Diffusion Conditions
Abstract
Layered double hydroxides (LDHs) are a class of functional materials that exhibit exceptional properties for diverse applications in areas such as heterogeneous catalysis, energy storage and conversion, and bio-medical applications, among others. Efforts have been devoted to produce millimeter-scale LDH structures for direct integration into functional devices. However, the controlled synthesis of self-supported continuous LDH materials with hierarchical structuring up to the millimeter scale through a straightforward one-pot reaction method remains unaddressed. Herein, it is shown that millimeter-scale self-supported LDH structures can be produced by means of a continuous flow microfluidic device in a rapid and reproducible one-pot process. Additionally, the microfluidic approach not only allows for an “on-the-fly” formation of unprecedented LDH composite structures, but also for the seamless integration of millimeter-scale LDH structures into functional devices. This method holds the potential to unlock the integrability of these materials, maintaining their performance and functionality, while diverging from conventional techniques like pelletization and densification that often compromise these aspects. This strategy will enable exciting advancements in LDH performance and functionality. Show more
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https://doi.org/10.3929/ethz-b-000649795Publication status
publishedExternal links
Journal / series
SmallVolume
Pages / Article No.
Publisher
Wiley-VCHSubject
continuous flow microfluidic technologies; controlled diffusion; layered double hydroxides; material processing; self-standing hollow structuresOrganisational unit
08705 - Gruppe Pané Vidal
Funding
181988 - Functional 2D porous crystalline materials (2DMats) (SNF)
206033 - Magnetically driven soft continuum robot-enabled localized prodrug delivery for cancer chemoimmunotherapy (SNF)
101047081/22.00021 - Magnetoelectric 3D printing technology - the revolution of actuatable composites (SBFI)
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