Continuous Hydrogenation of Carbon Dioxide to Formic Acid and Methyl Formate by a Molecular Iridium Complex Stably Heterogenized on a Covalent Triazine Framework

Journal article (2019)

Authors

Juan José Corral-Pérez Barcelona Institute of Science and Technology (BIST)
Amelia Billings Barcelona Institute of Science and Technology (BIST)
Dragos Stoian European Synchrotron Radiation Facility
A. Urakawa Barcelona Institute of Science and Technology (BIST),
Copyright: © 2019 Juan José Corral-Pérez, Amelia Billings, Dragos Stoian, A. Urakawa
DOI: https://doi.org/10.1002/cctc.201901179
Heterogeneous catalysis Formic acid CO hydrogenation Continuous synthesis Covalent triazine framework
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Published Date

2019

Language

English

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Abstract

Continuous synthesis of formic acid and methyl formate via CO2 hydrogenation is demonstrated using a molecular iridium complex stably immobilized on a solid covalent triazine framework (CTF) under high-pressure conditions. Compared to formic acid synthesis, methyl formate synthesis is advantageous to enhance the selectivity and yield of formates under kinetically favorable high temperature conditions. Transient in situ vibrational spectroscopy shows that the CTF strongly interacts with CO2 and H2, and even activates methanol. Hence, CTF is a promising support for molecular catalysts, even under harsh supercritical and flow conditions, through its strong binding capability.