KEPCO Journal on Electric Power and Energy

Korea Electric Power Corporation (한국전력공사)
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Synthesis of Double Mesoporous Silica Nanoparticles and Control of Their Pore Size

이중 다공성 실리카 나노입자 합성 및 공극 크기 조절

  • Park, Dae Keun (KEPCO Research Institute, Korea Electric Power Corporation) ;
  • Ahn, Jung Hwan (KEPCO Research Institute, Korea Electric Power Corporation)
  • Received : 2020.06.15
  • Accepted : 2020.10.21
  • Published : 2021.06.30
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Abstract

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.

Keywords

Acknowledgement

This work is supported by Korea Electric Power Corporation(Grant: R19XA02).

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