{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,16]],"date-time":"2026-09-16T14:06:29Z","timestamp":1789567589115,"version":"build-2803163510"},"reference-count":42,"publisher":"Wiley","issue":"52","license":[{"start":{"date-parts":[[2026,8,4]],"date-time":"2026-08-04T00:00:00Z","timestamp":1785801600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,8,4]],"date-time":"2026-08-04T00:00:00Z","timestamp":1785801600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100004351","name":"Sultan Qaboos University","doi-asserted-by":"publisher","award":["SR\/DVC\/NRC\/24\/01"],"award-info":[{"award-number":["SR\/DVC\/NRC\/24\/01"]}],"id":[{"id":"10.13039\/501100004351","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Small"],"published-print":{"date-parts":[[2026,9]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Metal\u2013organic polyhedra (MOPs) are discrete and intrinsically porous molecular self\u2010assemblies. MOPs exhibit rich surface chemistry; the existence of peripheral reactive sites is exploited by post\u2010synthetic covalent and\/or coordination\u2010based polymeric structures by maintaining MOP identities. By further treatment, the dimensions of cuboctahedral MOPs are manipulated in an unprecedented manner into next\u2010generation metal\/metal oxides\u2010doped carbon polyhedron nanocages\/nanospheres. Herein, the predesigned mixed metal and metal oxides dopped carbon nanopolyhedral spheres\/cages (M\/MO@CNS) are obtained through the pyrolysis of MOPs. These composites are characterized by FTIR, Raman, PXRD, BET, ICP, XPS, FE\u2010SEM, and TEM techniques. The spherical morphology of the nanomaterial is preserved as carbon spheres doped with metal\u2010based nanoparticles (Cu\n                    <jats:sup>0<\/jats:sup>\n                    Co\n                    <jats:sup>0<\/jats:sup>\n                    \/Cu\n                    <jats:sub>2<\/jats:sub>\n                    OCoO@CNS), demonstrating excellent electrocatalytic performance. Compared to commercial iridium oxide, the carbon nanospheres incorporating metals\/metal oxides presented a high activity profile for alkaline water oxidation. Catalysts prepared at 600\u00b0C and 1000\u00b0C revealed maximum current densities, as compared to the commercial IrO\n                    <jats:sub>2<\/jats:sub>\n                    benchmark catalyst. The current densities of 10\u00a0mA\/cm\n                    <jats:sup>2<\/jats:sup>\n                    recorded low overpotentials\/\u03b7\n                    <jats:sub>10<\/jats:sub>\n                    and Tafel slopes than IrO\n                    <jats:sub>2,<\/jats:sub>\n                    with lower charge transfer resistance. Combined post\u2010catalysis analyses and DFT calculations demonstrate that the synergistic interaction within Cu\n                    <jats:sub>2<\/jats:sub>\n                    O\/CoO@CNS optimizes the electronic structure and promotes electron transfer. It also balances the free energies of key intermediates and reduces the energy barrier of the OER rate\u2010determining step, resulting in enhanced catalytic performance. The MOPs derived next\u2010generation carbon\u2010nanocages are tested for catalytic stability via chronopotentiometry, which shows that these composites remained stable during several hours of electrolysis.\n                  <\/jats:p>","DOI":"10.1002\/smll.74680","type":"journal-article","created":{"date-parts":[[2026,8,4]],"date-time":"2026-08-04T10:52:45Z","timestamp":1785840765000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Nanocages: Metal\u2013Organic Polyhedra (MOPs) to Form M\/MO Embedded Carbon Polyhedra"],"prefix":"10.1002","volume":"22","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5442-1682","authenticated-orcid":false,"given":"Nazir","family":"Ahmad","sequence":"first","affiliation":[{"name":"State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan China"},{"name":"Nanotechnology Research Centre Sultan Qaboos University Al\u2010Khoud Oman"},{"name":"Department of Chemistry GC University Lahore Lahore Pakistan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8519-5745","authenticated-orcid":false,"given":"Hussein A.","family":"Younus","sequence":"additional","affiliation":[{"name":"Nanotechnology Research Centre Sultan Qaboos University Al\u2010Khoud Oman"},{"name":"Department of Chemistry Faculty of Science Fayoum University  Fayoum Egypt"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Zafar A. K.","family":"Khattak","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan China"},{"name":"Department of Chemistry University of Buner Buner Pakistan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Adnan","family":"Ali Khan","sequence":"additional","affiliation":[{"name":"School of Science Harbin Institute of Technology Shenzhen Shenzhen China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5184-5500","authenticated-orcid":false,"given":"Francis","family":"Verpoort","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan China"},{"name":"Joint Institute of Chemical Research (FFMiEN) Peoples Friendship University of Russia (RUDN University) Moscow 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