Exceptionally stable Rh-based molecular catalyst heterogenized on a cationically charged covalent triazine framework support for efficient methanol carbonylation

Authors
Park, KwanghoLim, SangyupBaik, Joon HyunKim, HonggonJung, Kwang-DeogYoon, Sungho
Issue Date
2018-06-07
Publisher
ROYAL SOC CHEMISTRY
Citation
CATALYSIS SCIENCE & TECHNOLOGY, v.8, no.11, pp.2894 - 2900
Abstract
Direct carbonylation of methanol into methyl acetate and acetic acid using Rh-based heterogeneous catalysts is of great interest due to their effective levels of activity and stability. Here, a Rh-based molecular catalyst heterogenized on a charged 1,3-bis(pyridyl)imidazolium-based covalent triazine framework (Rh-bpim-CTF) was synthesized and characterized to have a single-site distribution of metal molecular species throughout the support by its ligation to abundant N atom sites. Methanol carbonylation was performed using the Rh-bpim-CTF catalyst in a plug-flow reaction in the gas phase, affording a turnover frequency of up to 3693 h(-1) and a productivity of 218.9 mol kg(-1) h(-1) for acetyl products with high stability.
Keywords
METHYL ACETATE; ACETIC-ACID; DIMETHYL ETHER; LIQUID-PHASE; TRANSFER HYDROGENATION; REACTION-MECHANISM; CARBON-DIOXIDE; CO2 CAPTURE; FORMIC-ACID; RHODIUM; METHYL ACETATE; ACETIC-ACID; DIMETHYL ETHER; LIQUID-PHASE; TRANSFER HYDROGENATION; REACTION-MECHANISM; CARBON-DIOXIDE; CO2 CAPTURE; FORMIC-ACID; RHODIUM; Rd-based molecular catalyst; methyl acetate; methanol carbonylation; covalent triazine framework; Rh-bpim-CTF
ISSN
2044-4753
URI
https://pubs.kist.re.kr/handle/201004/121258
DOI
10.1039/c8cy00294k
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KIST Article > 2018
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