Azbell, Tyler J. Mandel, Ruth M. Lee, Jung-Hoon Milner, Phillip J. 2024-01-19T10:32:52Z 2024-01-19T10:32:52Z 2022-12-15 2022-12 1944-8244 https://pubs.kist.re.kr/handle/201004/114234 Chlorine (Cl2) is a toxic and corrosive gas that is both an essential reagent in industry and a potent chemical warfare agent. Materials that can strongly bind Cl2 at low pressures are essential for industrial and civilian personal protective equipment (PPE). Herein, we report the first examples of irreversible Cl2 capture via the dichlorination of alkene linkages in Zr-based metal- organic frameworks. Frameworks constructed from fumarate (Zr-fum) and stilbene (Zr-stilbene) linkers retain long-range order and accessible porosity after alkene dichlorination. In addition, energy-dispersive X-ray spectroscopy reveals an even distribution of Cl throughout both materials after Cl2 capture. Cl2 uptake experiments reveal high irreversible uptake of Cl2 (>10 wt %) at low partial pressures (<100 mbar), particularly in Zr-fum. In contrast, traditional porous carbons mostly display reversible Cl2 capture, representing a continued risk to users after exposure. Overall, our results support that alkene dichlorination represents a new pathway for reactive Cl2 capture, opening new opportunities for binding this gas irreversibly in PPE. English American Chemical Society Reactive Chlorine Capture by Dichlorination of Alkene Linkers Metal-Organic Frameworks Article 10.1021/acsami.2c17966 1 ACS Applied Materials & Interfaces, v.14, no.48, pp.53928 - 53935 ACS Applied Materials & Interfaces 14 48 53928 53935 N scie scopus 000890506400001 2-s2.0-85142606784 Nanoscience & Nanotechnology Materials Science, Multidisciplinary Science & Technology - Other Topics Materials Science Article REMOVAL FLEXIBILITY BROMINATION ADSORPTION RELEASE GAS ZR chlorination metal-organic framework chemisorption personal protective equipment porosity