biostudies-literatureGenz NSAcademy of FinlandNorges ForskningsrådJenny and Antti Wihuri foundationDeutsche ForschungsgemeinschaftResearch Council of NorwayDutch Research Council (NWO)University of Helsinki Doctoral Programme for Materials Research and NanoscienceWihuri Research Institutee202209334https://www.ebi.ac.uk/biostudies/studies/S-EPMC9828672biostudies-literatureUnknown61(48)Laboratory-based X-ray absorption spectroscopy (XAS) and especially X-ray absorption near-edge structure (XANES) offers new opportunities in catalyst characterization and presents not only an alternative, but also a complementary approach to precious beamtime at synchrotron facilities. We successfully designed a laboratory-based setup for performing operando, quasi-simultaneous XANES analysis at multiple K-edges, more specifically, operando XANES of mono-, bi-, and trimetallic CO₂ hydrogenation catalysts containing Ni, Fe, and Cu. Detailed operando XANES studies of the multielement solid catalysts revealed metal-dependent differences in the reducibility and re-oxidation behavior and their influence on the catalytic performance in CO₂ hydrogenation. The applicability oAngewandte Chemie (International ed. in English)Operando Laboratory-Based Multi-Edge X-Ray Absorption Near-Edge Spectroscopy of Solid Catalysts.PMC982867200200134197405452243354Gravitation Program - MCEC295696Genz NSKrumeich FHuotari SOord RPokle AOlsbye UPrytz OMeirer FKallio AJWeckhuysen BMfalseOperando Laboratory-Based Multi-Edge X-Ray Absorption Near-Edge Spectroscopy of Solid Catalysts.Laboratory-based X-ray absorption spectroscopy (XAS) and especially X-ray absorption near-edge structure (XANES) offers new opportunities in catalyst characterization and presents not only an alternative, but also a complementary approach to precious beamtime at synchrotron facilities. We successfully designed a laboratory-based setup for performing operando, quasi-simultaneous XANES analysis at multiple K-edges, more specifically, operando XANES of mono-, bi-, and trimetallic CO₂ hydrogenation catalysts containing Ni, Fe, and Cu. Detailed operando XANES studies of the multielement solid catalysts revealed metal-dependent differences in the reducibility and re-oxidation behavior and their influence on the catalytic performance in CO₂ hydrogenation. The applicability o2022-01-01T00:00:00Z2022 Nov2025-04-21T17:55:49.886Z2025-04-05T17:04:18.315ZS-EPMC98286723620503210.1002/anie.202209334