2023 Fiscal Year Annual Research Report
Development of real-time visualization techniques for interlayer intercalation mechanisms at the atomic level
Publicly Offered Research
| Project Area | Science of 2.5 Dimensional Materials: Paradigm Shift of Materials Science Toward Future Social Innovation |
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| Project/Area Number |
22H05478
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| Research Institution | National Institute of Advanced Industrial Science and Technology |
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Principal Investigator |
Lin YungChang 国立研究開発法人産業技術総合研究所, 材料・化学領域, 主任研究員 (90772244)
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| Project Period (FY) |
2022-06-16 – 2024-03-31
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| Keywords | Intercalation / STEM / 2D materials / graphene |
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| Outline of Annual Research Achievements |
We investigated the atomic structure of metal chlorides and alkali metals intercalated into bilayer graphene (BLG) using STEM. Our results revealed structural deviations from the original materials; for instance, MoCl5 intercalation resulted in MoCl3 and other MoClx nanostructures. This emphasizes the need for atomic-resolution imaging to accurately ascertain the properties of intercalation compounds (published in ACS Nano).
Further, we found that K, Rb, and Cs intercalated into BLG form a hcp bilayer, challenging the expected single-metal-layer intercalation. From this, we proposed a new graphite intercalation model where the surface-near interlayer expands to accommodate a metal bilayer, while central layers retain a single-metal form, detailed in Nature Communications.
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| Research Progress Status |
令和5年度が最終年度であるため、記入しない。
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| Strategy for Future Research Activity |
令和5年度が最終年度であるため、記入しない。
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