{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,22]],"date-time":"2026-09-22T04:51:58Z","timestamp":1790052718921,"version":"4.0.1"},"reference-count":62,"publisher":"Wiley","issue":"20","license":[{"start":{"date-parts":[[2026,2,6]],"date-time":"2026-02-06T00:00:00Z","timestamp":1770336000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,2,6]],"date-time":"2026-02-06T00:00:00Z","timestamp":1770336000000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Small"],"published-print":{"date-parts":[[2026,4]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Amid the global drive to eliminate carbon emissions and to mitigate the energy crisis, water splitting emerges as a beacon of innovation, converting water into clean hydrogen and oxygen. Most electrocatalysts for water splitting rely on precious metals, highlighting the demand for cost\u2010effective, efficient, and reproducible alternatives. Herein, we report the development of a cobalt\u2010adenosine monophosphate (CAH) hydrogel as a bifunctional catalyst for overall water splitting in alkaline conditions with a cell voltage of 1.56\u00a0V at 10\u00a0mA cm\n                    <jats:sup>\u22122<\/jats:sup>\n                    , outperforming the benchmark catalytic system IrO\n                    <jats:sub>2<\/jats:sub>\n                    ||Pt\/C (1.62\u00a0V at 10\u00a0mA cm\n                    <jats:sup>\u22122<\/jats:sup>\n                    ). Three crucial factors contributed to the notable water splitting of this hydrogel: (i) phosphate group in the AMP coordinated with central Co\n                    <jats:sup>2+<\/jats:sup>\n                    ions, promoting effective adsorption of key intermediates, (ii) tetrahedral arrangement around cobalt atoms making the active site more exposed and accessible, enabling better interaction with reactants and intermediates, (iii) the formation of hydrogel enhances electrolyte confinement, thus accelerating reaction kinetics. At elevated temperature, the hydrogel achieves a low cell voltage of 1.42\u00a0V at 1.0\u00a0M KOH. Even under industrially relevant harsh conditions, the hydrogel achieves 10\u00a0mA cm\n                    <jats:sup>\u22122<\/jats:sup>\n                    at 1.53\u00a0V, underscoring its durability. This simple nucleotide\u2010based coordination polymer might bring significant advancement in sustainable energy conversion.\n                  <\/jats:p>","DOI":"10.1002\/smll.202512303","type":"journal-article","created":{"date-parts":[[2026,2,6]],"date-time":"2026-02-06T12:04:57Z","timestamp":1770379497000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Unveiling a Tetrahedrally Coordinated Cobalt\u2010Nucleotide Hydrogel as an Efficient Bifunctional Electrocatalyst for Alkaline Water Electrolysis"],"prefix":"10.1002","volume":"22","author":[{"given":"Vidhi","family":"Agarwal","sequence":"first","affiliation":[{"name":"Department of Chemistry Indian Institute of Technology Indore  Indore India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bidyut","family":"Chutia","sequence":"additional","affiliation":[{"name":"Department of Chemistry North Campus University of Delhi  Delhi 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