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Continuous Hydrogenation of Carbon Dioxide to Formic Acid and Methyl Formate by a Molecular Iridium Complex Stably Heterogenized on a Covalent Triazine Framework
Author(s) -
CorralPérez Juan José,
Billings Amelia,
Stoian Dragos,
Urakawa Atsushi
Publication year - 2019
Publication title -
chemcatchem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.497
H-Index - 106
eISSN - 1867-3899
pISSN - 1867-3880
DOI - 10.1002/cctc.201901179
Subject(s) - formic acid , methyl formate , formate , chemistry , methanol , iridium , supercritical fluid , catalysis , covalent bond , selectivity , supercritical carbon dioxide , triazine , photochemistry , organic chemistry
Continuous synthesis of formic acid and methyl formate via CO 2 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 CO 2 and H 2 , 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.