TY - JOUR
T1 - A multi-parametric catalyst screening for CO2 hydrogenation to ethanol
AU - Goryachev, Andrey
AU - Pustovarenko, Alexey
AU - Shterk, G.
AU - Alhajri, N.S. (Nawal)
AU - Jamal, A. (Aqil)
AU - Albuali, M. (Mohammed)
AU - van Koppen, Luke
AU - Son Kahn, I, (Il)
AU - Russkikh, A.
AU - Romirez Galilea, A. (Adrian)
AU - Tuiana Shoinkhorova, T. (Tuiana)
AU - Hensen, Emiel J.M.
AU - Gascon, Jorge
PY - 2021/7/21
Y1 - 2021/7/21
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.
KW - CO reduction
KW - Ethanol synthesis
KW - KFeRh catalyst
KW - high-throughput screening
KW - spectroscopy
UR - http://www.scopus.com/inward/record.url?scp=85106526360&partnerID=8YFLogxK
U2 - 10.1002/cctc.202100302
DO - 10.1002/cctc.202100302
M3 - Article
SN - 1867-3880
VL - 13
SP - 3324
EP - 3332
JO - ChemCatChem
JF - ChemCatChem
IS - 14
ER -