{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"submitter":["Lin Q"],"pubmed_abstract":["Osmium (Os), the least expensive member of the platinum-group metals, has emerged as a promising alternative to Pt-based catalysts for the hydrogen evolution reaction (HER). However, Os-based electrocatalysts still suffer from poor stability under acidic conditions, despite recent efforts to mitigate H* over-adsorption for improved intrinsic activity. Here, we design a porous CeO<sub>2</sub> support that enables the atomic dispersion of Os, forming an Os single-atom catalyst (Os<sub>SA</sub>-CeO<sub>2</sub>). Unlike traditional flat-film supports, the porous CeO<sub>2</sub> architecture prevents Os aggregation and achieves 100% interfacial anchoring of Os atoms. The resulting strong electronic coupling enables tight anchoring of Os and activates the CeO<sub>2</sub> matrix with abundant oxy"],"journal":["Chemical science"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC12908458"],"repository":["biostudies-literature"],"pubmed_title":["Atomic-level interface engineering enables efficient and durable acidic hydrogen evolution of osmium at large current densities."],"pmcid":["PMC12908458"],"pubmed_authors":["Li H","Lin Q","Liang W","Hong Y","Zhang L","Yu J","Liao M","Song Z"],"additional_accession":[]},"is_claimable":false,"name":"Atomic-level interface engineering enables efficient and durable acidic hydrogen evolution of osmium at large current densities.","description":"Osmium (Os), the least expensive member of the platinum-group metals, has emerged as a promising alternative to Pt-based catalysts for the hydrogen evolution reaction (HER). However, Os-based electrocatalysts still suffer from poor stability under acidic conditions, despite recent efforts to mitigate H* over-adsorption for improved intrinsic activity. Here, we design a porous CeO<sub>2</sub> support that enables the atomic dispersion of Os, forming an Os single-atom catalyst (Os<sub>SA</sub>-CeO<sub>2</sub>). Unlike traditional flat-film supports, the porous CeO<sub>2</sub> architecture prevents Os aggregation and achieves 100% interfacial anchoring of Os atoms. The resulting strong electronic coupling enables tight anchoring of Os and activates the CeO<sub>2</sub> matrix with abundant oxy","dates":{"release":"2026-01-01T00:00:00Z","publication":"2026 Feb","modification":"2026-07-16T05:01:44.799Z","creation":"2026-07-09T13:10:29.942Z"},"accession":"S-EPMC12908458","cross_references":{"pubmed":["41705039"],"doi":["10.1039/d5sc09741j"]}}