{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,25]],"date-time":"2026-10-25T03:50:12Z","timestamp":1792900212309,"version":"4.5.0"},"reference-count":71,"publisher":"American Association for the Advancement of Science (AAAS)","issue":"15","content-domain":{"domain":["www.science.org"],"crossmark-restriction":true},"short-container-title":["Sci. Adv."],"published-print":{"date-parts":[[2025,4,11]]},"abstract":"<jats:p>\n                    Few reports on paramagnetic metal nanoparticles with atomic precision and their difficult tailoring retard the insightful investigation of metal nanoparticle paramagnetism. Herein, we introduced a thiol-iodine mixture ligand\u2013protecting strategy to successfully synthesize multi-shell paramagnetic [Au\n                    <jats:sub>127<\/jats:sub>\n                    I\n                    <jats:sub>4<\/jats:sub>\n                    (TBBT)\n                    <jats:sub>48<\/jats:sub>\n                    (I: iodine, TBBT: 4-tert-butylphenylthiolate)]. The innermost Au atom was successfully removed via thiol induction without altering the structure framework to produce diamagnetic Au\n                    <jats:sub>126<\/jats:sub>\n                    I\n                    <jats:sub>4<\/jats:sub>\n                    (TBBT)\n                    <jats:sub>48<\/jats:sub>\n                    with local ligand arrangement changed (butterfly effect), which could be further transformed into paramagnetic [Au\n                    <jats:sub>126<\/jats:sub>\n                    I\n                    <jats:sub>4<\/jats:sub>\n                    (TBBT)\n                    <jats:sub>48<\/jats:sub>\n                    ]\n                    <jats:sup>+<\/jats:sup>\n                    via hydrogen peroxide oxidation. The spin populations of both paramagnetic nanoparticles are more densely distributed on surface iodine than sulfur. Diamagnetic Au\n                    <jats:sub>126<\/jats:sub>\n                    I\n                    <jats:sub>4<\/jats:sub>\n                    (TBBT)\n                    <jats:sub>48<\/jats:sub>\n                    exhibited a Faradaic efficiency of ~100% at \u22120.57\u00a0volt during the electrocatalytic reduction of carbon dioxide to carbon monoxide, while paramagnetic Au\n                    <jats:sub>127<\/jats:sub>\n                    I\n                    <jats:sub>4<\/jats:sub>\n                    (TBBT)\n                    <jats:sub>48<\/jats:sub>\n                    and [Au\n                    <jats:sub>126<\/jats:sub>\n                    I\n                    <jats:sub>4<\/jats:sub>\n                    (TBBT)\n                    <jats:sub>48<\/jats:sub>\n                    ]\n                    <jats:sup>+<\/jats:sup>\n                    exhibited the maximum Faradaic efficiency of 87% at \u22120.67\u00a0volt and 90% at \u22120.57\u00a0volt, respectively, indicating the spin-catalytic activity correlation.\n                  <\/jats:p>","DOI":"10.1126\/sciadv.adu1996","type":"journal-article","created":{"date-parts":[[2025,4,9]],"date-time":"2025-04-09T13:58:41Z","timestamp":1744207121000},"update-policy":"https:\/\/doi.org\/10.34133\/aaas_crossmark","source":"Crossref","is-referenced-by-count":31,"title":["Remove the innermost atom of a magnetic multi-shell gold nanoparticle for near-unity conversion of CO\n                    <sub>2<\/sub>\n                    to CO"],"prefix":"10.1126","volume":"11","author":[{"ORCID":"https:\/\/orcid.org\/0009-0003-9050-0833","authenticated-orcid":true,"given":"Guoqing","family":"Bian","sequence":"first","affiliation":[{"name":"Key Laboratory of Materials Physics, Anhui Key Laboratory of Nanomaterials and Nanotechnology, CAS Center for Excellence in Nanoscience, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei, Anhui 230031, P. 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