| 학회 | 한국화학공학회 |
| 학술대회 | 2022년 봄 (04/20 ~ 04/23, 제주국제컨벤션센터) |
| 권호 | 28권 1호, p.484 |
| 발표분야 | [주제 8] 에너지 저장 |
| 제목 | Highly Efficient Bromine Capture and Storage using N-Containing Porous Organic Cages |
| 초록 | Adsorption-based bromine (Br2) capture systems are highly desirable for the safe storage and transportation of molecular bromine. In this study, we utilize nitrogen-containing porous organic cages (POCs) with large porosity and a high density of binding sites for volatile Br2 vapor capture. An imine-based POC (CC3-R) shows a static Br2 uptake capacity of 10.96 mmol·g-1 at 25°C while a tertiary amine-based POC (FT-RCC3) exhibits 13.23 mmol·g-1 under the same conditions. These values present their high capture performance compared with other MOFs which have been explored in previous studies.[1,2] Adsorption mechanism of Br2 has been explained by experimentally identifying bromine species adsorbed at POCs and calculating their binding energies and Raman spectra. A high proportion of Br2 exists as polybromide states, resulting in the formation of charge-transfer complexes. This study demonstrates the importance of charge-transfer interactions between host materials and bromine molecules for achieving a highly efficient Br2 capture performance. Keywords : Porous organic cage, Bromine, Adsorption, Charge-transfer interaction |
| 저자 | 이성규1, 정용철2, 고동연1 |
| 소속 | 1한국과학기술원, 2부산대 |
| 키워드 | 분리기술(Separation Technology) |
| 원문파일 | 초록 보기 |
