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Among them, Co\u2010N\u2010C systems have received particular attention because of their favorable stability and low cost, yet isolated Co sites often exhibit insufficient O\n                    <jats:sub>2<\/jats:sub>\n                    adsorption and charge polarization, limiting further activity enhancement. In this study, we introduce Mn into a Co\u2010N\u2010C matrix via a confined adsorption approach to create adjacent Co\u2013Mn sites. The presence of adjacent Mn electronically modulates the Co center, resulting in a CoMnNC catalyst with markedly improved ORR performance. The catalyst delivers half\u2010wave potential (\n                    <jats:italic>E<\/jats:italic>\n                    <jats:sub>1\/2<\/jats:sub>\n                    ) values of 0.80\u00a0V in 0.1\u00a0M HClO\n                    <jats:sub>4<\/jats:sub>\n                    and 0.919\u00a0V in 0.1\u00a0M KOH. Under Zn\u2010air battery testing, its maximum power density reached 193.5\u00a0mW cm\n                    <jats:sup>\u22122<\/jats:sup>\n                    , outperforming Pt\/C under identical conditions. Density functional theory (DFT) calculations indicate Mn proximity enriches the electron density at Co and downshifts the Co d\u2010band center. This electronic modulation enhances O\n                    <jats:sub>2<\/jats:sub>\n                    adsorption and charge polarization, weakens the adsorbed O\u2500O bond and lowers the barrier for OOH* formation. This work clarifies how neighboring metal sites regulate the electronic structure of Co centers to facilitate O\n                    <jats:sub>2<\/jats:sub>\n                    activation and offers a reference for designing excellent M\u2010N\u2010C catalysts.\n                  <\/jats:p>","DOI":"10.1002\/chem.71334","type":"journal-article","created":{"date-parts":[[2026,6,25]],"date-time":"2026-06-25T18:58:32Z","timestamp":1782413912000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Breaking the O\n                    <sub>2<\/sub>\n                    Activation Bottleneck via Synergistic Electronic Polarization at Adjacent Co\u2013Mn Sites in N\u2010Doped Carbon"],"prefix":"10.1002","volume":"32","author":[{"given":"Longjie","family":"Yu","sequence":"first","affiliation":[{"name":"State Key Laboratory of Space Power\u2010Sources MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage MOE Engineering Research Center for Electrochemical Energy Storage and Carbon Neutrality in Cold Regions School of Chemistry and Chemical Engineering Harbin Institute of Technology  Harbin Heilongjiang China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bo","family":"Liu","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Space Power\u2010Sources MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage MOE Engineering Research Center for Electrochemical Energy Storage and Carbon Neutrality in Cold Regions School of Chemistry and Chemical Engineering Harbin Institute of Technology  Harbin Heilongjiang China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Chen","family":"Yang","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Space Power\u2010Sources MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage MOE Engineering Research Center for Electrochemical Energy Storage and Carbon Neutrality in Cold Regions School of Chemistry and Chemical Engineering Harbin Institute of Technology  Harbin Heilongjiang China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zigang","family":"Zhao","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Space Power\u2010Sources MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage MOE Engineering Research Center for Electrochemical Energy Storage and Carbon Neutrality in Cold Regions School of Chemistry and Chemical Engineering Harbin Institute of Technology  Harbin Heilongjiang China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ziyu","family":"Zhang","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Space Power\u2010Sources MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage MOE Engineering Research Center for Electrochemical Energy Storage and Carbon Neutrality in Cold Regions School of Chemistry and Chemical Engineering Harbin Institute of Technology  Harbin Heilongjiang China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bing","family":"Liu","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Space Power\u2010Sources MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage MOE Engineering Research Center for Electrochemical Energy Storage and Carbon Neutrality in Cold Regions School of Chemistry and Chemical Engineering Harbin Institute of Technology  Harbin Heilongjiang China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yunkun","family":"Dai","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Space Power\u2010Sources MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage MOE Engineering Research Center for Electrochemical Energy Storage and Carbon 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