{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"submitter":["Tan L"],"pubmed_abstract":["Proton exchange membrane water electrolysis (PEMWE) is a cornerstone technology for carbon-neutral hydrogen production, yet its scalability is constrained by the intrinsic activity-stability trade-off of oxygen evolution reaction (OER) electrocatalysts. To overcome this challenge, we design a Ru/RuO<sub>2</sub> heterostructure by integrating metallic Ru to modulate the d-orbital electron density of RuO<sub>2</sub>. The metallic Ru domains suppress lattice oxygen migration (LOM) while enhancing electron delocalization. The e<sub>g</sub> orbital filling shifts the Ru 4d-band center downward, reducing the adsorption strength of reaction intermediates (*OH, *O, and *OOH). The optimized Ru/RuO<sub>2</sub> electrocatalyst achieves an overpotential of 181 mV at 10 mA cm<sup>-2</sup> in 0.5 M H<su"],"journal":["Chemical science"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC12822733"],"repository":["biostudies-literature"],"pubmed_title":["Dopant-free stabilization of ruthenium oxide &lt;i&gt;via&lt;/i&gt; metallic Ru-induced d-orbital modulation for acidic water electrolysis."],"pmcid":["PMC12822733"],"pubmed_authors":["Tan L","Tian J","Su T","Li X","Lin C","Zhu L","Faiza M","Luo W","Zhang Q","Xu J","Wu X","Song Y"],"additional_accession":[]},"is_claimable":false,"name":"Dopant-free stabilization of ruthenium oxide &lt;i&gt;via&lt;/i&gt; metallic Ru-induced d-orbital modulation for acidic water electrolysis.","description":"Proton exchange membrane water electrolysis (PEMWE) is a cornerstone technology for carbon-neutral hydrogen production, yet its scalability is constrained by the intrinsic activity-stability trade-off of oxygen evolution reaction (OER) electrocatalysts. To overcome this challenge, we design a Ru/RuO<sub>2</sub> heterostructure by integrating metallic Ru to modulate the d-orbital electron density of RuO<sub>2</sub>. The metallic Ru domains suppress lattice oxygen migration (LOM) while enhancing electron delocalization. The e<sub>g</sub> orbital filling shifts the Ru 4d-band center downward, reducing the adsorption strength of reaction intermediates (*OH, *O, and *OOH). The optimized Ru/RuO<sub>2</sub> electrocatalyst achieves an overpotential of 181 mV at 10 mA cm<sup>-2</sup> in 0.5 M H<su","dates":{"release":"2026-01-01T00:00:00Z","publication":"2026 Jan","modification":"2026-06-06T21:36:28.895Z","creation":"2026-06-05T03:11:24.738Z"},"accession":"S-EPMC12822733","cross_references":{"pubmed":["41573120"],"doi":["10.1039/d5sc08602g"]}}