[논문]이중 다공성 실리카 나노입자 합성 및 공극 크기 조절

Park, Dae Keun; Ahn, Jung Hwan

doi:10.18770/kepco.2021.07.01.167

[국내논문] 이중 다공성 실리카 나노입자 합성 및 공극 크기 조절
Synthesis of Double Mesoporous Silica Nanoparticles and Control of Their Pore Size 원문보기

KEPCO Journal on electric power and energy, v.7 no.1, 2021년, pp.167 - 169

Park, Dae Keun (KEPCO Research Institute, Korea Electric Power Corporation) , Ahn, Jung Hwan (KEPCO Research Institute, Korea Electric Power Corporation)

Abstract ▼ AI-Helper

In this study, monodispersive silica nanoparticles with double mesoporous shells were synthesized, and the pore size of synthetic mesoporous silica nanoparticles was controlled. Cetyltrimethylammonium chloride (CTAC), N, N-dimethylbenzene, and decane were used as soft template and induced to form outer mesoporous shell. The resultant double mesoporous silica nanoparticles were consisted of two layers of shells having different pore sizes, and it has been confirmed that outer shells with larger pores (Mean pore size > 2.5 nm) are formed directly on the surface of the smaller pore sized shell (Mean pore size < 2.5 nm). It was confirmed that the regulation of the molar ratio of pore expansion agents plays a key role in determining the pore size of double mesoporous shells.

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표/그림 (4)

그림 Fig. 1. Schematic illustration of mesoporous silica nanoparticles with double shells, and TEM image (right side)
그림 Fig. 2. TEM images of silica nanoparticles with no shell (a), single mesoporous shells (b), and double mesoporous shells (c).
그림 Fig. 3. Pore diameter distribution curves of silica nanoparticles with single and double shells.
그림 Fig. 4. Pore diameter distribution curves of silica nanoparticles with different molar ratio of pore expansion agents.

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