TY - JOUR
T1 - A multi-parametric catalyst screening for CO2 hydrogenation to ethanol
AU - Goryachev, Andrey
AU - Pustovarenko, Alexey
AU - Shterk, Genrikh
AU - Alhajri, Nawal S.
AU - Jamal, Aqil
AU - Albuali, Mohammed
AU - van Koppen, Luke
AU - Khan, Il Son
AU - Russkikh, Artem
AU - Ramirez, Adrian
AU - Shoinkhorova, Tuiana
AU - Hensen, Emiel J. M.
AU - Gascon, Jorge
N1 - KAUST Repository Item: Exported on 2021-04-27
Acknowledgements: Saudi Aramco is gratefully acknowledged for financial support. The authors acknowledge Jullian Vittenet (KAUST) for ICP-OES measurements, Anissa Bendjeriou Sedjerari (KAUST) and Tiny Verhoeven (TU/e) for their assistance.
PY - 2021/4/21
Y1 - 2021/4/21
N2 - The direct hydrogenation of CO 2 to higher alcohols has the potential to turn the main contributor of global warming into a valuable feedstock. However, for this technology to become attractive, more efficient and, especially, selective catalysts are required. Here we present a high throughput study on the influence of different promoters on the CO 2 hydrogenation performance of Rh-SiO 2 catalysts. Fe and K promoters were found to improve ethanol selectivity at the expense of undesired CH 4 . The best-performing catalyst, with a composition 2 wt.% K, 20 wt.% Fe, and 5 wt.% Rh, displays an EtOH selectivity of 16% at CO 2 conversion level of 18.4% and CH 4 selectivity of 46%. The combination of different characterization techniques and catalyst screening allowed us to unravel the role of each catalyst component in this complex reaction mechanism.
AB - The direct hydrogenation of CO 2 to higher alcohols has the potential to turn the main contributor of global warming into a valuable feedstock. However, for this technology to become attractive, more efficient and, especially, selective catalysts are required. Here we present a high throughput study on the influence of different promoters on the CO 2 hydrogenation performance of Rh-SiO 2 catalysts. Fe and K promoters were found to improve ethanol selectivity at the expense of undesired CH 4 . The best-performing catalyst, with a composition 2 wt.% K, 20 wt.% Fe, and 5 wt.% Rh, displays an EtOH selectivity of 16% at CO 2 conversion level of 18.4% and CH 4 selectivity of 46%. The combination of different characterization techniques and catalyst screening allowed us to unravel the role of each catalyst component in this complex reaction mechanism.
UR - http://hdl.handle.net/10754/668929
UR - https://onlinelibrary.wiley.com/doi/10.1002/cctc.202100302
U2 - 10.1002/cctc.202100302
DO - 10.1002/cctc.202100302
M3 - Article
SN - 1867-3880
JO - ChemCatChem
JF - ChemCatChem
ER -