2018 Fiscal Year Annual Research Report
高度エネルギーデバイスに向けたメソ細孔有する層状ナノ物質の創製
| Project/Area Number |
18F18038
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| Research Institution | National Institute for Materials Science |
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Principal Investigator |
山内 悠輔 国立研究開発法人物質・材料研究機構, 国際ナノアーキテクトニクス研究拠点, MANA主任研究者 (10455272)
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| Co-Investigator(Kenkyū-buntansha) |
WANG JIE 国立研究開発法人物質・材料研究機構, 国際ナノアーキテクトニクス研究拠点, 外国人特別研究員
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| Project Period (FY) |
2018-07-25 – 2020-03-31
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| Keywords | Porous materials |
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| Outline of Annual Research Achievements |
Two-dimensional (2D) materials have attracted significant research interests towards energy-storage applications owing to their unique physical and chemical characteristics. 2D ordered mesoporous materials can be formed through an interface induced strategy by using low-molecular-weight amphiphilic molecules (e.g. P123 and F127) as pore-directing agents. We succeeded to prepare hetero-structured MXene (Ti3C2Tx)/nitrogen-doped OMC (NOMC) composites via the self-assembly of melamine resol-P123 micelles with exfoliated Ti3C2Tx nanosheets. The NOMC exhibited ordered arrangement of mesopores which were aligned with Ti3C2Tx nanosheet surface. This novel structure not only inhibits the restacking between MXene nanosheets, but also affords fast ion diffusion even at very high scan rates.
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| Current Status of Research Progress |
Current Status of Research Progress
1: Research has progressed more than it was originally planned.
Reason
すべての課題を順調にこなしている．
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| Strategy for Future Research Activity |
We will produce layer-by-layer motif architectures through confined soft-template self-assembly in layered materials (as explained in detail in Figure 2). Precursor of mesoporous layer (e.g. resol and tetrabutyl titanate) and copolymer unimers (e.g. Brij 58, P123, F127) are firstly introduced into the interlayer of 2D materials (e.g. MXene, MoS2, VOPO4, graphene). 2D ordered micelle@precursor will then be formed through evaporation induced self-assemble (EISA) route. Importantly, the final pore structure and pore dimensions can be controlled by the polymer characteristics (e.g. length and ratio between the unimers) and EISA parameters (e.g. water concentration, precursor/unimer ratio and evaporation kinetics). The 2D-2D heterostructure constructed by 2D ordered materials thin layer intercalated within the original 2D interlayer spaces will be obtained by calcination.
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