{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Pan Y"],"funding":["National Natural Science Foundation of China (National Science Foundation of China)"],"pagination":["8627"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC12480962"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["16(1)"],"pubmed_abstract":["Metal-support interfaces fundamentally govern the catalytic performance of heterogeneous systems through complex interactions. Here, utilizing operando transmission electron microscopy, we uncover a looping metal-support interaction in NiFe-Fe<sub>3</sub>O<sub>4</sub> catalysts during the hydrogen oxidation reaction. At the NiFe-Fe<sub>3</sub>O<sub>4</sub> interfaces, lattice oxygens react with NiFe-activated H atoms, gradually sacrificing themselves and resulting in dynamically migrating interfaces. Meanwhile, reduced iron atoms migrate to the {111} surface of Fe<sub>3</sub>O<sub>4</sub> support and react with oxygen molecules. Consequently, the hydrogen oxidation reaction separates spatially on a single nanoparticle and is intrinsically coupled with the redox reaction of the Fe<sub>3</sub>O<sub>4</sub> support through the dynamic migration of metal-support interfaces. Our work provides previously unidentified mechanistic insight into metal-support interactions and underscores the transformative potential of operando methodologies for studying atomic-scale dynamics."],"journal":["Nature communications"],"pubmed_title":["Looping metal-support interaction in heterogeneous catalysts during redox reactions."],"pmcid":["PMC12480962"],"funding_grant_id":["U21A20328, 52101277, 22105220, and 22209202"],"pubmed_authors":["Liu X","Su D","Pan Y","Zhen S","Gu L","Zhou D","Ge M","Zhang L","Zhao J"],"additional_accession":[]},"is_claimable":false,"name":"Looping metal-support interaction in heterogeneous catalysts during redox reactions.","description":"Metal-support interfaces fundamentally govern the catalytic performance of heterogeneous systems through complex interactions. Here, utilizing operando transmission electron microscopy, we uncover a looping metal-support interaction in NiFe-Fe<sub>3</sub>O<sub>4</sub> catalysts during the hydrogen oxidation reaction. At the NiFe-Fe<sub>3</sub>O<sub>4</sub> interfaces, lattice oxygens react with NiFe-activated H atoms, gradually sacrificing themselves and resulting in dynamically migrating interfaces. Meanwhile, reduced iron atoms migrate to the {111} surface of Fe<sub>3</sub>O<sub>4</sub> support and react with oxygen molecules. Consequently, the hydrogen oxidation reaction separates spatially on a single nanoparticle and is intrinsically coupled with the redox reaction of the Fe<sub>3</sub>O<sub>4</sub> support through the dynamic migration of metal-support interfaces. Our work provides previously unidentified mechanistic insight into metal-support interactions and underscores the transformative potential of operando methodologies for studying atomic-scale dynamics.","dates":{"release":"2025-01-01T00:00:00Z","publication":"2025 Sep","modification":"2026-06-03T23:27:02.509Z","creation":"2026-05-03T03:11:22.119Z"},"accession":"S-EPMC12480962","cross_references":{"pubmed":["41022771"],"doi":["10.1038/s41467-025-63646-1"]}}