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Lee WR, Kim JE, Lee SJ, Kang M, Kang DW, Lee HY, Hiremath V, Seo JG, Jin H, Moon D, Cho M, Jung Y, Hong CS. Diamine-Functionalization of a Metal-Organic Framework Adsorbent for Superb Carbon Dioxide Adsorption and Desorption Properties. CHEMSUSCHEM 2018; 11:1694-1707. [PMID: 29603670 DOI: 10.1002/cssc.201800363] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 03/28/2018] [Indexed: 06/08/2023]
Abstract
For real-world postcombustion applications in the mitigation of CO2 emissions using dry sorbents, adsorption and desorption behaviors should be controlled to design and fabricate prospective materials with optimal CO2 performances. Herein, we prepared diamine-functionalized Mg2 (dobpdc) (H4 dobpdc=4,4'-dihydroxy-(1,1'-biphenyl)-3,3'-dicarboxylic acid). (1-diamine) with ethylenediamine (en), primary-secondary (N-ethylethylenediamine-een and N-isopropylethylenediamine-ipen), primary-tertiary, and secondary-secondary diamines. A slight alteration of the number of alkyl substituents on the diamines and their alkyl chain length dictates the desorption temperature (Tdes ) at 100 % CO2 , desorption characteristics, and ΔT systematically to result in the tuning of the working capacity. The existence of bulky substituents on the diamines improves the framework stability upon exposure to O2 , SO2 , and water vapor, relevant to real flue-gas conditions. Bulky substituents are also responsible for an interesting two-step behavior observed for the ipen case, as revealed by DFT calculations. Among the diamine-appended metal-organic frameworks, 1-een, which has the required adsorption and desorption properties, is a promising material for sorbent-based CO2 capture processes. Hence, CO2 performance and framework durability can be tailored by the judicial selection of the diamine structure, which enables property design at will and facilitates the development of desirable CO2 -capture materials.
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Affiliation(s)
- Woo Ram Lee
- Department of Chemistry, Sejong University, Seoul, 05006, Republic of Korea
| | - Jeong Eun Kim
- Department of Chemistry, Korea University, Seoul, 136-713, Republic of Korea
| | - Sung Jin Lee
- Graduate school of Energy, Environment, Water and Sustainability (EEWS), Korea Advanced Institute of Science and Technology, Daejeon, 305-701, Republic of Korea
| | - Minjung Kang
- Department of Chemistry, Korea University, Seoul, 136-713, Republic of Korea
| | - Dong Won Kang
- Department of Chemistry, Korea University, Seoul, 136-713, Republic of Korea
| | - Hwa Young Lee
- Department of Chemistry, Korea University, Seoul, 136-713, Republic of Korea
| | - Vishwanath Hiremath
- Department of Energy Science and Technology, Myongji University, Myongji-ro 116, Cheoin-gu, Yongin, Gyeonggi-do, 449-728, Republic of Korea
| | - Jeong Gil Seo
- Department of Energy Science and Technology, Myongji University, Myongji-ro 116, Cheoin-gu, Yongin, Gyeonggi-do, 449-728, Republic of Korea
| | - Hailian Jin
- R&D Team, Korea Carbon Capture & Sequestration R&D Center, Daejeon, 305-343, Republic of Korea
| | - Dohyun Moon
- Beamline Division, Pohang Accelerator Laboratory, Pohang, Kyungbuk, 790-784, Republic of Korea
| | - Moses Cho
- Graduate school of Energy, Environment, Water and Sustainability (EEWS), Korea Advanced Institute of Science and Technology, Daejeon, 305-701, Republic of Korea
| | - Yousung Jung
- Graduate school of Energy, Environment, Water and Sustainability (EEWS), Korea Advanced Institute of Science and Technology, Daejeon, 305-701, Republic of Korea
| | - Chang Seop Hong
- Department of Chemistry, Korea University, Seoul, 136-713, Republic of Korea
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