Facile synthesis of nanoporous Mg crystalline structure by organic solvent-based reduction for solid-state hydrogen storage
Abstract Nanoporous metals have unique potentials for energy applications with a high surface area despite the percolating structure. Yet, a highly corrosive environment is required for the synthesis of porous metals with conventional dealloying methods, limiting the large-scale fabrication of porou...
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| Format: | Article |
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Nature Portfolio
2024-12-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-024-55018-y |
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| author | Hyesun Kim HyeonJi Kim Wonsik Kim Choah Kwon Si-Won Jin Taejun Ha Jae-Hyeok Shim Soohyung Park Aqil Jamal Sangtae Kim Eun Seon Cho |
| author_facet | Hyesun Kim HyeonJi Kim Wonsik Kim Choah Kwon Si-Won Jin Taejun Ha Jae-Hyeok Shim Soohyung Park Aqil Jamal Sangtae Kim Eun Seon Cho |
| author_sort | Hyesun Kim |
| collection | DOAJ |
| description | Abstract Nanoporous metals have unique potentials for energy applications with a high surface area despite the percolating structure. Yet, a highly corrosive environment is required for the synthesis of porous metals with conventional dealloying methods, limiting the large-scale fabrication of porous structures for reactive metals. In this study, we synthesize a highly reactive Mg nanoporous system through a facile organic solution-based approach without any harsh etching. The synthesized nanoporous Mg also demonstrates enhanced hydrogen sorption kinetics and reveals unique kinetic features compared to Mg nanoparticles. The well-crystallized Mg nanoporous structure exhibits crystalline facet-dependent hydrogen sorption characteristics, featuring gradually improved hydrogen storage capacity up to 6 wt.% upon cycling. Also, continuum kinetics models coupled to atomistic simulations reveal that the compressive stress developed during the hydrogenation of nanoporous Mg enhances the sorption kinetics, as opposed to the sluggish kinetics under tensile stress in core-shell nanoparticles. It is expected that the synthetic strategy conceived in this study can be further implemented to prepare different kinds of reactive porous metals in a facile and scalable way for the development of large-scale and distributed hydrogen storage systems for the emerging low-carbon hydrogen economy. |
| format | Article |
| id | doaj-art-61e03a2a7d00426cb2693116c85bc9a9 |
| institution | Kabale University |
| issn | 2041-1723 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-61e03a2a7d00426cb2693116c85bc9a92025-01-05T12:35:48ZengNature PortfolioNature Communications2041-17232024-12-0115111210.1038/s41467-024-55018-yFacile synthesis of nanoporous Mg crystalline structure by organic solvent-based reduction for solid-state hydrogen storageHyesun Kim0HyeonJi Kim1Wonsik Kim2Choah Kwon3Si-Won Jin4Taejun Ha5Jae-Hyeok Shim6Soohyung Park7Aqil Jamal8Sangtae Kim9Eun Seon Cho10Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST)Department of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST)Advanced Analysis Center, Korea Institute of Science and Technology (KIST)Department of Nuclear Engineering, Hanyang UniversityCenter for Hydrogen Energy Materials, Korea Institute of Science and Technology (KIST)Functional Materials and Components R&D Group, Korea Institute of Industrial Technology (KITECH)Center for Hydrogen Energy Materials, Korea Institute of Science and Technology (KIST)Advanced Analysis Center, Korea Institute of Science and Technology (KIST)Carbon Management Research Division, Research and Development Center, Saudi AramcoDepartment of Nuclear Engineering, Hanyang UniversityDepartment of Chemical and Biomolecular Engineering, Korea Advanced Institute of Science and Technology (KAIST)Abstract Nanoporous metals have unique potentials for energy applications with a high surface area despite the percolating structure. Yet, a highly corrosive environment is required for the synthesis of porous metals with conventional dealloying methods, limiting the large-scale fabrication of porous structures for reactive metals. In this study, we synthesize a highly reactive Mg nanoporous system through a facile organic solution-based approach without any harsh etching. The synthesized nanoporous Mg also demonstrates enhanced hydrogen sorption kinetics and reveals unique kinetic features compared to Mg nanoparticles. The well-crystallized Mg nanoporous structure exhibits crystalline facet-dependent hydrogen sorption characteristics, featuring gradually improved hydrogen storage capacity up to 6 wt.% upon cycling. Also, continuum kinetics models coupled to atomistic simulations reveal that the compressive stress developed during the hydrogenation of nanoporous Mg enhances the sorption kinetics, as opposed to the sluggish kinetics under tensile stress in core-shell nanoparticles. It is expected that the synthetic strategy conceived in this study can be further implemented to prepare different kinds of reactive porous metals in a facile and scalable way for the development of large-scale and distributed hydrogen storage systems for the emerging low-carbon hydrogen economy.https://doi.org/10.1038/s41467-024-55018-y |
| spellingShingle | Hyesun Kim HyeonJi Kim Wonsik Kim Choah Kwon Si-Won Jin Taejun Ha Jae-Hyeok Shim Soohyung Park Aqil Jamal Sangtae Kim Eun Seon Cho Facile synthesis of nanoporous Mg crystalline structure by organic solvent-based reduction for solid-state hydrogen storage Nature Communications |
| title | Facile synthesis of nanoporous Mg crystalline structure by organic solvent-based reduction for solid-state hydrogen storage |
| title_full | Facile synthesis of nanoporous Mg crystalline structure by organic solvent-based reduction for solid-state hydrogen storage |
| title_fullStr | Facile synthesis of nanoporous Mg crystalline structure by organic solvent-based reduction for solid-state hydrogen storage |
| title_full_unstemmed | Facile synthesis of nanoporous Mg crystalline structure by organic solvent-based reduction for solid-state hydrogen storage |
| title_short | Facile synthesis of nanoporous Mg crystalline structure by organic solvent-based reduction for solid-state hydrogen storage |
| title_sort | facile synthesis of nanoporous mg crystalline structure by organic solvent based reduction for solid state hydrogen storage |
| url | https://doi.org/10.1038/s41467-024-55018-y |
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