Ligand Insertion in MOF-74 as Effective Design for Oxidation of Ethane to Ethanol
Abstract
We report that efficient conversion of ethane into valuable materials is important with the availability of new natural gas resources. Recently, metal–organic frameworks (MOFs) with open iron sites (i.e., Fe0.1Mg1.9-MOF-74) have been shown to be promising material for catalyzing ethane to ethanol. In this computational study, various size-matching ligands are inserted into the Fe0.1Mg1.9-MOF-74 structure to further optimize this reaction. Our density functional theory calculations show that the presence of ligands enhances the binding affinity of the oxygen atoms of N2O to the iron atoms in the framework, thereby leading to an improvement in the oxidizing process. Furthermore, the reaction pathways for the new structures show reduced enthalpy barrier in the rate-determining step in the oxidation of ethane reaction cycle compared to the original Fe0.1Mg1.9-MOF-74. In conclusion, these findings provide ways in which the performance of the Fe0.1Mg1.9-MOF-74 can be optimized for next-generation catalysts.
- Authors:
-
- Korea Advanced Inst. Science and Technology (KAIST), Daejeon (Korea, Republic of)
- Publication Date:
- Research Org.:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC); Univ. of California, Oakland, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1543654
- Grant/Contract Number:
- AC02-05CH11231
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of Physical Chemistry. C
- Additional Journal Information:
- Journal Volume: 122; Journal Issue: 40; Journal ID: ISSN 1932-7447
- Publisher:
- American Chemical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE
Citation Formats
Suh, Bong Lim, and Kim, Jihan. Ligand Insertion in MOF-74 as Effective Design for Oxidation of Ethane to Ethanol. United States: N. p., 2018.
Web. doi:10.1021/acs.jpcc.8b07857.
Suh, Bong Lim, & Kim, Jihan. Ligand Insertion in MOF-74 as Effective Design for Oxidation of Ethane to Ethanol. United States. https://doi.org/10.1021/acs.jpcc.8b07857
Suh, Bong Lim, and Kim, Jihan. Mon .
"Ligand Insertion in MOF-74 as Effective Design for Oxidation of Ethane to Ethanol". United States. https://doi.org/10.1021/acs.jpcc.8b07857. https://www.osti.gov/servlets/purl/1543654.
@article{osti_1543654,
title = {Ligand Insertion in MOF-74 as Effective Design for Oxidation of Ethane to Ethanol},
author = {Suh, Bong Lim and Kim, Jihan},
abstractNote = {We report that efficient conversion of ethane into valuable materials is important with the availability of new natural gas resources. Recently, metal–organic frameworks (MOFs) with open iron sites (i.e., Fe0.1Mg1.9-MOF-74) have been shown to be promising material for catalyzing ethane to ethanol. In this computational study, various size-matching ligands are inserted into the Fe0.1Mg1.9-MOF-74 structure to further optimize this reaction. Our density functional theory calculations show that the presence of ligands enhances the binding affinity of the oxygen atoms of N2O to the iron atoms in the framework, thereby leading to an improvement in the oxidizing process. Furthermore, the reaction pathways for the new structures show reduced enthalpy barrier in the rate-determining step in the oxidation of ethane reaction cycle compared to the original Fe0.1Mg1.9-MOF-74. In conclusion, these findings provide ways in which the performance of the Fe0.1Mg1.9-MOF-74 can be optimized for next-generation catalysts.},
doi = {10.1021/acs.jpcc.8b07857},
journal = {Journal of Physical Chemistry. C},
number = 40,
volume = 122,
place = {United States},
year = {Mon Sep 24 00:00:00 EDT 2018},
month = {Mon Sep 24 00:00:00 EDT 2018}
}
Web of Science
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