TY - JOUR
T1 - A High Pressure Operando Spectroscopy Examination of Bimetal Interactions in ‘Metal Efficient’ Palladium/In2O3/Al2O3 Catalysts for CO2 Hydrogenation
AU - Potter, Matthew E.
AU - Mediavilla Madrigal, Sofia
AU - Campbell, Emma
AU - Allen, Lisa J.
AU - Vyas, Urvashi
AU - Parry, Stephen
AU - García-Zaragova, Adrián
AU - Martínez-Prieto, Luis M.
AU - Oña-Burgos, Pascual
AU - Lützen, Mads
AU - Damsgaard, Christian D.
AU - Rodríguez-Castellón, Enrique
AU - Schiaroli, Nicola
AU - Fornasari, Giuseppe
AU - Benito, Patricia
AU - Beale, Andrew M.
N1 - Publisher Copyright:
© 2023 The Authors. Angewandte Chemie International Edition published by Wiley-VCH GmbH.
PY - 2023
Y1 - 2023
N2 - CO2 hydrogenation to methanol has the potential to serve as a sustainable route to a wide variety of hydrocarbons, fuels and plastics in the quest for net zero. Synergistic Pd/In2O3 (Palldium on Indium Oxide) catalysts show high CO2 conversion and methanol selectivity, enhancing methanol yield. The identity of the optimal active site for this reaction is unclear, either as a Pd−In alloy, proximate metals, or distinct sites. In this work, we demonstrate that metal-efficient Pd/In2O3 species dispersed on Al2O3 can match the performance of pure Pd/In2O3 systems. Further, we follow the evolution of both Pd and In sites, and surface species, under operando reaction conditions using X-ray Absorption Spectroscpy (XAS) and infrared (IR) spectroscopy. In doing so, we can determine both the nature of the active sites and the influence on the catalytic mechanism.
AB - CO2 hydrogenation to methanol has the potential to serve as a sustainable route to a wide variety of hydrocarbons, fuels and plastics in the quest for net zero. Synergistic Pd/In2O3 (Palldium on Indium Oxide) catalysts show high CO2 conversion and methanol selectivity, enhancing methanol yield. The identity of the optimal active site for this reaction is unclear, either as a Pd−In alloy, proximate metals, or distinct sites. In this work, we demonstrate that metal-efficient Pd/In2O3 species dispersed on Al2O3 can match the performance of pure Pd/In2O3 systems. Further, we follow the evolution of both Pd and In sites, and surface species, under operando reaction conditions using X-ray Absorption Spectroscpy (XAS) and infrared (IR) spectroscopy. In doing so, we can determine both the nature of the active sites and the influence on the catalytic mechanism.
U2 - 10.1002/anie.202312645
DO - 10.1002/anie.202312645
M3 - Letter
C2 - 37723118
AN - SCOPUS:85172658854
SN - 1433-7851
VL - 62
JO - Angewandte Chemie - International Edition
JF - Angewandte Chemie - International Edition
IS - 45
M1 - e202312645
ER -