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Volume 11
Issue 6
10.3390/catal11060695
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Communication

Iridium(NHC)-Catalyzed Sustainable Transfer Hydrogenation of CO2 and Inorganic Carbonates

by
Yeon-Joo Cheong
,
Kihyuk Sung
,
Jin-A Kim
,
Yu Kwon Kim
,
Woojin Yoon
,
Hoseop Yun
and
Hye-Young Jang
*
Department of Energy Systems Research, Ajou University, Suwon 16499, Korea
*
Author to whom correspondence should be addressed.
Catalysts 2021, 11(6), 695; https://doi.org/10.3390/catal11060695
Submission received: 11 May 2021 / Revised: 27 May 2021 / Accepted: 29 May 2021 / Published: 31 May 2021
(This article belongs to the Special Issue Catalysis on Stable Molecules (CO2, CO, CH4, N2, NH3) Activation and Their Transformation)
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Abstract

Iridium(NHC)-catalyzed transfer hydrogenation (TH) of CO2 and inorganic carbonates with glycerol were conducted, demonstrating excellent turnover numbers (TONs) and turnover frequencies (TOFs) for the formation of formate and lactate. Regardless of carbon sources, excellent TOFs of formate were observed (CO2: 10,000 h−1 and K2CO3: 10,150 h−1). Iridium catalysts modified with the triscarbene ligand showed excellent catalytic activity at 200 °C and are a suitable choice for this transformation which requires a high temperature for high TONs of formate. On the basis of the control experiments, the transfer hydrogenation mechanism of CO2 was proposed.
Keywords: carbon dioxide; inorganic carbonate; transfer hydrogenation; iridium(NHC) carbon dioxide; inorganic carbonate; transfer hydrogenation; iridium(NHC)
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MDPI and ACS Style

Cheong, Y.-J.; Sung, K.; Kim, J.-A.; Kim, Y.K.; Yoon, W.; Yun, H.; Jang, H.-Y. Iridium(NHC)-Catalyzed Sustainable Transfer Hydrogenation of CO2 and Inorganic Carbonates. Catalysts 2021, 11, 695. https://doi.org/10.3390/catal11060695

AMA Style

Cheong Y-J, Sung K, Kim J-A, Kim YK, Yoon W, Yun H, Jang H-Y. Iridium(NHC)-Catalyzed Sustainable Transfer Hydrogenation of CO2 and Inorganic Carbonates. Catalysts. 2021; 11(6):695. https://doi.org/10.3390/catal11060695

Chicago/Turabian Style

Cheong, Yeon-Joo, Kihyuk Sung, Jin-A Kim, Yu Kwon Kim, Woojin Yoon, Hoseop Yun, and Hye-Young Jang. 2021. "Iridium(NHC)-Catalyzed Sustainable Transfer Hydrogenation of CO2 and Inorganic Carbonates" Catalysts 11, no. 6: 695. https://doi.org/10.3390/catal11060695

APA Style

Cheong, Y.-J., Sung, K., Kim, J.-A., Kim, Y. K., Yoon, W., Yun, H., & Jang, H.-Y. (2021). Iridium(NHC)-Catalyzed Sustainable Transfer Hydrogenation of CO2 and Inorganic Carbonates. Catalysts, 11(6), 695. https://doi.org/10.3390/catal11060695

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