« Previous AbstractChanges in the aromatic profile of espresso coffee as a function of the grinding grade and extraction time: a study by the electronic nose system    Next AbstractEffect of persistent trace compounds in landfill gas on engine performance during energy recovery: a case study »

Angew Chem Int Ed Engl

Title:		MOFs with Open Metal(III) Sites for the Environmental Capture of Polar Volatile Organic Compounds
Author(s):		Severino MI; Al Mohtar A; Vieira Soares C; Freitas C; Sadovnik N; Nandi S; Mouchaham G; Pimenta V; Nouar F; Daturi M; Maurin G; Pinto ML; Serre C;
Address:		"Institut des Materiaux Poreux de Paris (IMAP), ESPCI Paris, Ecole Normale Superieure, CNRS, PSL University, 75005, Paris, France. CERENA, Departamento de Engenharia Quimica, Instituto Superior Tecnico, Universidade de Lisboa, 1049-001, Lisboa, Portugal. ICGM, Univ. Montpellier, CNRS, ENSCM, 34293, Montpellier, France. Normandie Univ., ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie, 14000, Caen, France"
Journal Title:		Angew Chem Int Ed Engl
Year:		2023
Volume:		20221228
Issue:		6
Page Number:		e202211583 -
DOI:		10.1002/anie.202211583
ISSN/ISBN:		1521-3773 (Electronic) 1433-7851 (Print) 1433-7851 (Linking)
Abstract:		"Metal-Organic Frameworks (MOFs) with open metal sites (OMS) interact strongly with a range of polar gases/vapors. However, under ambient conditions, their selective adsorption is generally impaired due to a high OMS affinity to water. This led previously to the privilege selection of hydrophobic MOFs for the selective capture/detection of volatile organic compounds (VOCs). Herein, we show that this paradigm is challenged by metal(III) polycarboxylates MOFs, bearing a high concentration of OMS, as MIL-100(Fe), enabling the selective capture of polar VOCs even in the presence of water. With experimental and computational tools, including single-component gravimetric and dynamic mixture adsorption measurements, in situ infrared (IR) spectroscopy and Density Functional Theory calculations we reveal that this adsorption mechanism involves a direct coordination of the VOC on the OMS, associated with an interaction energy that exceeds that of water. Hence, MOFs with OMS are demonstrated to be of interest for air purification purposes"
Keywords:		Acetic Acid Adsorption MOFs Open Metal Sites Volatile Organic Compounds;
Notes:		"PubMed-not-MEDLINESeverino, Maria Ines Al Mohtar, Abeer Vieira Soares, Carla Freitas, Catia Sadovnik, Nicolas Nandi, Shyamapada Mouchaham, Georges Pimenta, Vanessa Nouar, Farid Daturi, Marco Maurin, Guillaume Pinto, Moises L Serre, Christian eng 760801/Horizon 2020 Framework Programme/ UIDB/04028/2020 UIDP/04028/2020/Faculdade de Ciencias e Tecnologia, Universidade Nova de Lisboa/ A0120907613/CINES/ Germany 2022/12/06 Angew Chem Int Ed Engl. 2023 Feb 1; 62(6):e202211583. doi: 10.1002/anie.202211583. Epub 2022 Dec 28"