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However, limited by synthetic preparation methods, understanding of the mechanism of asymmetrically coordinated single\u2010atom catalysis is restricted. In this study, leveraging the micropore confinement effect, nitrogen and phosphorus\u2010doped microporous carbon is used as a substrate to successfully anchor singly dispersed Fe atoms, constructing the asymmetrically coordinated single\u2010atom Fe site coordinated with N and P atoms (Fe\u2010SAs\/NPC). The existence of the Fe\u2010N\n                    <jats:sub>3<\/jats:sub>\n                    P\n                    <jats:sub>1<\/jats:sub>\n                    site structure breaks the symmetry Fe\u2010N\n                    <jats:sub>4<\/jats:sub>\n                    in Fe\u2010SAs\/NC, which would optimize the adsorption strength of intermediates. The resulting Fe\u2010SAs\/NPC exhibits excellent ORR activity with a half\u2010wave potential of 0.91\u00a0V (0.1\u00a0\n                    <jats:sc>m<\/jats:sc>\n                    KOH), which is 40\u00a0mV higher than that of Fe\u2010SAs\/NC (0.87\u00a0V). Combined with theoretical calculations, an in\u2010depth understanding of the asymmetric electronic configuration from the perspective of spin orbitals can enhance the electronic activity near the Fermi level and strengthen the adsorption of oxygen\u2010containing intermediates. This work provides new perspectives and ideas for understanding spin\u2010electronic behavior in catalytic processes. Furthermore, the Zn\u2010air battery constructed using Fe\u2010SAs\/NPC exhibits a high power density of 187.7\u00a0mW cm\n                    <jats:sup>\u22122<\/jats:sup>\n                    and a specific capacity of 819.6 mAh g\n                    <jats:sub>Zn<\/jats:sub>\n                    <jats:sup>\u22121<\/jats:sup>\n                    at 10\u00a0mA cm\n                    <jats:sup>\u22122<\/jats:sup>\n                    .\n                  <\/jats:p>","DOI":"10.1002\/smll.202412639","type":"journal-article","created":{"date-parts":[[2025,3,11]],"date-time":"2025-03-11T18:55:13Z","timestamp":1741719313000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Asymmetry Spin\u2010Orbit of Single Iron Active Site Enhance Oxygen Reduction Reaction"],"prefix":"10.1002","volume":"21","author":[{"given":"Yayin","family":"Li","sequence":"first","affiliation":[{"name":"Beijing Key Laboratory of Energy Conversion and Storage Materials Institution College of Chemistry Beijing Normal University  Beijing 100875 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4990-2393","authenticated-orcid":false,"given":"Haomin","family":"Jiang","sequence":"additional","affiliation":[{"name":"Beijing Key Laboratory of Energy Conversion and Storage Materials Institution College of Chemistry Beijing Normal University  Beijing 100875 China"},{"name":"Center for Advanced Materials Research &amp; College of Arts and Sciences Experiment and Practice Innovation Education Center Beijing Normal University  Zhuhai 519087 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yu","family":"He","sequence":"additional","affiliation":[{"name":"Beijing Key Laboratory of Energy Conversion and Storage Materials Institution College of Chemistry Beijing Normal University  Beijing 100875 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9922-4092","authenticated-orcid":false,"given":"Liu","family":"Lin","sequence":"additional","affiliation":[{"name":"Beijing Key Laboratory of Energy Conversion and Storage Materials Institution College of Chemistry Beijing Normal University  Beijing 100875 China"},{"name":"Center for Advanced Materials Research &amp; College of Arts and Sciences Experiment and Practice Innovation Education Center Beijing Normal University  Zhuhai 519087 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0634-1936","authenticated-orcid":false,"given":"Zemin","family":"Sun","sequence":"additional","affiliation":[{"name":"Beijing Key Laboratory of Energy Conversion and Storage Materials Institution College of Chemistry Beijing Normal University  Beijing 100875 China"},{"name":"Center for Advanced Materials Research &amp; College of Arts and Sciences Experiment and Practice Innovation Education Center Beijing Normal University  Zhuhai 519087 China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9005-8123","authenticated-orcid":false,"given":"Genban","family":"Sun","sequence":"additional","affiliation":[{"name":"Beijing Key Laboratory of Energy Conversion and Storage Materials Institution College of Chemistry Beijing Normal University  Beijing 100875 China"},{"name":"Center for Advanced Materials Research &amp; College of Arts and Sciences Experiment and Practice Innovation Education Center Beijing Normal University  Zhuhai 519087 China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2025,2,25]]},"reference":[{"key":"e_1_2_8_1_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41893-023-01101-z"},{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41467-023-40177-1"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41467-023-37529-2"},{"key":"e_1_2_8_4_1","volume":"36","author":"Li L.","year":"2024","journal-title":"Adv. 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