title: Adsorptive Separation of Acetylene from Light Hydrocarbons by Mesoporous Iron Trimesate MIL-100(Fe).
abstract: A reducible metal-organic framework (MOF), iron(III) trimesate, denoted as MIL-100(Fe), was investigated for the separation and purification of methane/ethane/ethylene/acetylene and an acetylene/CO2 mixtures by using sorption isotherms, breakthrough experiments, ideal adsorbed solution theory (IAST) calculations, and IR spectroscopic analysis. The MIL-100(Fe) showed high adsorption selectivity not only for acetylene and ethylene over methane and ethane, but also for acetylene over CO2 . The separation and purification of acetylene over ethylene was also possible for MIL-100(Fe) activated at 423 K. According to the data obtained from operando IR spectroscopy, the unsaturated Fe(III) sites and surface OH groups are mainly responsible for the successful separation of the acetylene/ethylene mixture, whereas the unsaturated Fe(II) sites have a detrimental effect on both separation and purification. The potential of MIL-100(Fe) for the separation of a mixture of C2 H2 /CO2 was also examined by using the IAST calculations and transient breakthrough simulations. Comparing the IAST selectivity calculations of C2 H2 /CO2 for four MOFs selected from the literature, the selectivity with MIL-100(Fe) was higher than those of CuBTC, ZJU-60a, and PCP-33, but lower than that of HOF-3.
authors.affiliation: Research Center for Nanocatalysts, Korea Research Institute of Chemical Technology (KRICT), P.O. Box 107, Yusung, Daejeon 305-600 (Korea).|Laboratoire Catalyse et Spectrochimie, ENSICAEN, Université de Caen, CNRS, 6 Bd. Maréchal Juin, 14050, Caen (France).
authors.forename: Ji Woong
authors.initials: JW
authors.lastname: Yoon
authors.affiliation: Research Center for Nanocatalysts, Korea Research Institute of Chemical Technology (KRICT), P.O. Box 107, Yusung, Daejeon 305-600 (Korea).|Department of Chemistry, Center for Bioactive Molecular Hybrid, Yonsei University, Seodamoonku, Seoul 120-749 (Republic of Korea).
authors.forename: Ji Sun
authors.initials: JS
authors.lastname: Lee
authors.affiliation: Research Center for Nanocatalysts, Korea Research Institute of Chemical Technology (KRICT), P.O. Box 107, Yusung, Daejeon 305-600 (Korea).
authors.forename: Sukyung
authors.initials: S
authors.lastname: Lee
authors.affiliation: Research Center for Nanocatalysts, Korea Research Institute of Chemical Technology (KRICT), P.O. Box 107, Yusung, Daejeon 305-600 (Korea).
authors.forename: Kyoung Ho
authors.initials: KH
authors.lastname: Cho
authors.affiliation: Research Center for Nanocatalysts, Korea Research Institute of Chemical Technology (KRICT), P.O. Box 107, Yusung, Daejeon 305-600 (Korea).
authors.forename: Young Kyu
authors.initials: YK
authors.lastname: Hwang
authors.affiliation: Laboratoire Catalyse et Spectrochimie, ENSICAEN, Université de Caen, CNRS, 6 Bd. Maréchal Juin, 14050, Caen (France).
authors.forename: Marco
authors.initials: M
authors.lastname: Daturi
authors.affiliation: Department of Chemistry, Center for Bioactive Molecular Hybrid, Yonsei University, Seodamoonku, Seoul 120-749 (Republic of Korea).
authors.forename: Chul-Ho
authors.initials: CH
authors.lastname: Jun
authors.affiliation: van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, Amsterdam 1098 XH (The Netherlands). R.krishna@contact.uva.nl.
authors.forename: Rajamani
authors.initials: R
authors.lastname: Krishna
authors.affiliation: Research Center for Nanocatalysts, Korea Research Institute of Chemical Technology (KRICT), P.O. Box 107, Yusung, Daejeon 305-600 (Korea). jschang@krict.re.kr.|Department of Chemistry, Sungkyunkwan University, Suwon 440-476 (Korea). jschang@krict.re.kr.
authors.forename: Jong-San
authors.initials: JS
authors.lastname: Chang
keywords: IR spectroscopy; adsorption; gas separation; iron; metal-organic frameworks