2026-08-06T05:11:59Z https://icatplus.esrf.fr/oaipmh/request

oai:icatplus.esrf.fr:inv/1089326695 2023-04-14T06:00:27.560Z

4.2 EI 10.15151/ESRF-ES-1089326695 Andrew Michael BEALE Andrew Michael Beale 0000-0002-0923-1433 Dragos Constantin STOIAN Dragos Constantin Stoian 0000-0002-2436-6483 Andrew Michael BEALE Andrew Michael Beale 0000-0002-0923-1433 Wouter VAN BEEK Wouter Van Beek Sofia MEDIAVILLA MADRIGAL Sofia Mediavilla Madrigal 0000-0002-5244-7993 Sofia MEDIAVILLA MADRIGAL Sofia Mediavilla Madrigal 0000-0002-5244-7993 Matthew POTTER Matthew Potter 0000-0001-9849-3306 Naomi LAWES Naomi Lawes 0000-0003-4667-5567 Naomi LAWES Naomi Lawes 0000-0003-4667-5567 Matthew POTTER Matthew Potter 0000-0001-9849-3306 Example Institute 2026 Data from large facility measurement 2023-04-09T06:00:00Z/2023-04-14T06:00:00Z 2023-04-14T06:00:00Z I CC-BY-4.0 Pd/In2O3 has been shown to be a promising catalyst used for hydrogenation of CO2 to methanol. Characterisation of the Pd/In2O3 pre- and post-reaction combined with theoretical modelling, pointed to the proper anchoring of palladium clusters to In2O3, permitting particularly improved H2 dissociation. In contrast, in situ XAFS data has shown that In and Pd go onto form a bimetallic nanoparticulate species during reaction. Some of our recent work, has shown that it is possible to create supported Pd/In (on Al2O3) with a similar level of CO2 hydrogenation performance to Pd/In2O3. This work provides us with an opportunity to examine the nature of Pd/In species for optimal methanol yields since the In data in particular will be less dominated by In2O3. We propose to perform XAFS measurements during activation (in H2) and under operando conditions (during CO2 hydrogenation) to follow the structure of Pd and In speciation and to correlate this with performance (activation vs. deactivation).