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Article: Low Heat Capacity 3D Hollow Microarchitected Reactors for Thermal and Fluid Applications

TitleLow Heat Capacity 3D Hollow Microarchitected Reactors for Thermal and Fluid Applications
Authors
Keywordsarchitected materials
fast thermal response
high surface area
hollow microlattice
ultralight ceramic microlattices
Issue Date2022
Citation
Energies, 2022, v. 15, n. 11, article no. 4073 How to Cite?
AbstractLightweight reactor materials that simultaneously possess low heat capacity and large surface area are desirable for various applications such as catalytic supports, heat exchangers, and biological scaffolds. However, they are challenging to satisfy this criterion originating from their structural property in most porous cellular solids. Microlattices have great potential to resolve this issue in directing transport phenomena because of their hierarchically ordered design and controllable geometrical features such as porosity, specific surface, and tortuosity. In this study, we report hollow ceramic microlattices comprising a 10 µm thick hollow nickel oxide beam in an octet-truss architecture with low heat capacity and high specific surface area. Our microarchitected reactors exhibited a low heat capacity for a rapid thermal response with a small Biot number (Bi << 1) and large intertwined surface area for homogeneous flow mixing and chemical reactions, which made them ideal candidates for various energy applications. The hollow ceramic microlattice was fabricated by digital light three-dimensional (3D) printing, composite electroless plating, polymer removal, and subsequent thermal annealing. The transient thermal response and fluidic properties of the 3D-printed microstructures were experimentally investigated using a small-scale thermal and fluid test system, and analytically interpreted using simplified models. Our findings indicate that hollow microarchitected reactors provide a promising platform for developing multifunctional materials for thermal and fluid applications.
Persistent Identifierhttp://hdl.handle.net/10722/319021
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorKim, Seok-
dc.contributor.authorNam, Sang Hoon-
dc.contributor.authorKim, Seokho-
dc.contributor.authorCho, Young Tae-
dc.contributor.authorFang, Nicholas X.-
dc.date.accessioned2022-10-11T12:25:05Z-
dc.date.available2022-10-11T12:25:05Z-
dc.date.issued2022-
dc.identifier.citationEnergies, 2022, v. 15, n. 11, article no. 4073-
dc.identifier.urihttp://hdl.handle.net/10722/319021-
dc.description.abstractLightweight reactor materials that simultaneously possess low heat capacity and large surface area are desirable for various applications such as catalytic supports, heat exchangers, and biological scaffolds. However, they are challenging to satisfy this criterion originating from their structural property in most porous cellular solids. Microlattices have great potential to resolve this issue in directing transport phenomena because of their hierarchically ordered design and controllable geometrical features such as porosity, specific surface, and tortuosity. In this study, we report hollow ceramic microlattices comprising a 10 µm thick hollow nickel oxide beam in an octet-truss architecture with low heat capacity and high specific surface area. Our microarchitected reactors exhibited a low heat capacity for a rapid thermal response with a small Biot number (Bi << 1) and large intertwined surface area for homogeneous flow mixing and chemical reactions, which made them ideal candidates for various energy applications. The hollow ceramic microlattice was fabricated by digital light three-dimensional (3D) printing, composite electroless plating, polymer removal, and subsequent thermal annealing. The transient thermal response and fluidic properties of the 3D-printed microstructures were experimentally investigated using a small-scale thermal and fluid test system, and analytically interpreted using simplified models. Our findings indicate that hollow microarchitected reactors provide a promising platform for developing multifunctional materials for thermal and fluid applications.-
dc.languageeng-
dc.relation.ispartofEnergies-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.subjectarchitected materials-
dc.subjectfast thermal response-
dc.subjecthigh surface area-
dc.subjecthollow microlattice-
dc.subjectultralight ceramic microlattices-
dc.titleLow Heat Capacity 3D Hollow Microarchitected Reactors for Thermal and Fluid Applications-
dc.typeArticle-
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.3390/en15114073-
dc.identifier.scopuseid_2-s2.0-85132291815-
dc.identifier.volume15-
dc.identifier.issue11-
dc.identifier.spagearticle no. 4073-
dc.identifier.epagearticle no. 4073-
dc.identifier.eissn1996-1073-
dc.identifier.isiWOS:000808647900001-

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