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|
| Type |
Poster Presentation |
| Area |
Material Chemistry |
| Room No. |
Event Hall |
| Time |
4월 20일 (금요일) 11:00~12:30 |
| Code |
MAT.P-464 |
| Subject |
Mechanistic Insight into Thermal Conversion of Nanospace Confined Layered Gadolinium Double Hydroxide toward Porous Two-dimensional Structure of Gd2O3 |
| Authors |
Ki-Wan Jeon, Sunwoo Jang1, In Su Lee*
Department of Chemistry, Pohang University of Science and Technology, Korea
1Department of chemistry, Pohang University of Science and Technology, Korea
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| Abstract |
Two dimensional structure has attracted considerable attention as an ideal building block for fabrication of thin film on the various substrate of large area, which is favorable for various practical applications. This work highlights in-situ formation of the mesopores on the facial plane of 2D-Gd2O3 nanosheets during the thermal conversion process of the nanospace confined layered gadolinium double hydroxide (LGdH) within SiO2 shell. The formation of the mesopores could be attributed to outward diffusion of the Gd ions toward SiO2 shell to form a thermal dynamically favored Gd-silicate. Moreover, (111) facial plane with higher surface energy on the 2D-Gd2O3 nanosheets could facilitate preferential diffusion of the Gd ions. By taking advantage of the proposed strategy in this work, colloidal suspension of the various (porous) 2D metal oxides could be produced. |
| E-mail |
kiwanjeon@postech.ac.kr |
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121st General Meeting of the KCS