{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,27]],"date-time":"2026-09-27T16:57:18Z","timestamp":1790528238399,"version":"4.1.0"},"reference-count":41,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,9,27]],"date-time":"2026-09-27T00:00:00Z","timestamp":1790467200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,9,27]],"date-time":"2026-09-27T00:00:00Z","timestamp":1790467200000},"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"],"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    A Cu\u2010retention\u2010assisted precursor\u2010conversion strategy is developed to construct a graphdiyne (GDY)\u2010coupled CoCuFe phosphide\u2010like heterostructure for alkaline water electrolysis. Octahedral Cu\n                    <jats:sub>2<\/jats:sub>\n                    O directs the particle morphology and serves as a Cu source, whereas the CoFe Prussian blue analogue (PBA) shell supplies the Co and Fe species required to form the multimetal phosphide\u2010like framework. In situ growth of GDY preserves the precursor\u2010derived architecture and establishes interfacial contact between the \u03c0\u2010conjugated GDY layer and the phosphide\u2010like domain. The resulting GDY@P\u2010CoCuFe requires overpotentials of 211 and 88.5\u00a0mV to reach 10\u00a0mA\u00a0cm\n                    <jats:sup>\u22122<\/jats:sup>\n                    for the oxygen and hydrogen evolution reactions, respectively, in 1.0\u00a0M KOH. When employed as both the anode and cathode in a symmetric electrolyzer, GDY@P\u2010CoCuFe delivers 10\u00a0mA\u00a0cm\n                    <jats:sup>\u22122<\/jats:sup>\n                    at a cell voltage of 1.45\u00a0V and maintains stable operation for 100\u00a0h. Spectroscopic analyses and density functional theory calculations suggest that interfacial charge redistribution and the formation of Cu\u2010adjacent P sites contribute to favorable hydrogen adsorption. Post\u2010operation characterization further reveals partial oxyhydroxide\u2010like surface reconstruction during OER, while the underlying phosphide\u2010like framework and GDY structure remain largely preserved. These findings demonstrate that combining controlled Cu retention with direct GDY interfacial growth provides an effective route for developing efficient and durable bifunctional electrocatalysts.\n                  <\/jats:p>","DOI":"10.1002\/smll.76022","type":"journal-article","created":{"date-parts":[[2026,9,27]],"date-time":"2026-09-27T16:40:54Z","timestamp":1790527254000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["In Situ\u2010Grown Graphdiyne Interfaces on Cu\u2010Retained CoCuFe Phosphide\u2010Like Octahedra for Overall Water Splitting"],"prefix":"10.1002","author":[{"given":"Nahyun","family":"Lee","sequence":"first","affiliation":[{"name":"School of Chemical Engineering Chung\u2010Ang University  Seoul Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sangwoo","family":"Kim","sequence":"additional","affiliation":[{"name":"School of Chemical Engineering Chung\u2010Ang University  Seoul Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jinhyun","family":"Park","sequence":"additional","affiliation":[{"name":"School of Chemical Engineering Chung\u2010Ang University  Seoul Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pei\u2010Chen","family":"Su","sequence":"additional","affiliation":[{"name":"School of Mechanical and Aerospace Engineering Nanyang Technological University  Singapore Singapore"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6644-7791","authenticated-orcid":false,"given":"Jooheon","family":"Kim","sequence":"additional","affiliation":[{"name":"School of Chemical Engineering Chung\u2010Ang University  Seoul Republic of Korea"},{"name":"Department of Intelligent Energy and Industry Graduate School Chung\u2010Ang University  Seoul Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,9,27]]},"reference":[{"key":"e_1_2_9_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.gee.2020.11.023"},{"key":"e_1_2_9_3_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.mtener.2020.100426"},{"key":"e_1_2_9_4_1","doi-asserted-by":"publisher","DOI":"10.1002\/advs.202309364"},{"key":"e_1_2_9_5_1","doi-asserted-by":"publisher","DOI":"10.1021\/acscatal.7b04286"},{"key":"e_1_2_9_6_1","doi-asserted-by":"publisher","DOI":"10.1021\/acscatal.1c01718"},{"key":"e_1_2_9_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijhydene.2026.156167"},{"key":"e_1_2_9_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jallcom.2023.169625"},{"key":"e_1_2_9_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.scenem.2025.100004"},{"key":"e_1_2_9_10_1","doi-asserted-by":"publisher","DOI":"10.1002\/adfm.201907791"},{"key":"e_1_2_9_11_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jallcom.2024.173726"},{"key":"e_1_2_9_12_1","doi-asserted-by":"publisher","DOI":"10.1007\/s40820\u2010023\u201001253\u20109"},{"key":"e_1_2_9_13_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jallcom.2023.168935"},{"key":"e_1_2_9_14_1","doi-asserted-by":"publisher","DOI":"10.1039\/d4dt00199k"},{"key":"e_1_2_9_15_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.cej.2022.138515"},{"key":"e_1_2_9_16_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jallcom.2022.163771"},{"key":"e_1_2_9_17_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jallcom.2023.172484"},{"key":"e_1_2_9_18_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.xcrp.2023.101747"},{"key":"e_1_2_9_19_1","doi-asserted-by":"publisher","DOI":"10.1021\/acsnano.3c03849"},{"key":"e_1_2_9_20_1","doi-asserted-by":"publisher","DOI":"10.1002\/adma.73687"},{"key":"e_1_2_9_21_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41467\u2010026\u201069682\u20109"},{"key":"e_1_2_9_22_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202318080"},{"key":"e_1_2_9_23_1","doi-asserted-by":"publisher","DOI":"10.1002\/celc.202001313"},{"key":"e_1_2_9_24_1","doi-asserted-by":"publisher","DOI":"10.1002\/smll.202201135"},{"key":"e_1_2_9_25_1","doi-asserted-by":"publisher","DOI":"10.1002\/adfm.202413013"},{"key":"e_1_2_9_26_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jechem.2021.04.052"},{"key":"e_1_2_9_27_1","doi-asserted-by":"publisher","DOI":"10.1039\/d1sc03390e"},{"key":"e_1_2_9_28_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.nanoen.2016.09.005"},{"key":"e_1_2_9_29_1","doi-asserted-by":"publisher","DOI":"10.1021\/cg900437x"},{"key":"e_1_2_9_30_1","doi-asserted-by":"publisher","DOI":"10.1021\/ja804625s"},{"key":"e_1_2_9_31_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.energyfuels.3c02773"},{"key":"e_1_2_9_32_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jcis.2023.02.037"},{"key":"e_1_2_9_33_1","doi-asserted-by":"publisher","DOI":"10.1002\/eem2.12747"},{"key":"e_1_2_9_34_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.matlet.2019.126868"},{"key":"e_1_2_9_35_1","doi-asserted-by":"publisher","DOI":"10.1038\/s41467\u2010018\u201003444\u20100"},{"key":"e_1_2_9_36_1","doi-asserted-by":"publisher","DOI":"10.1021\/acscatal.9b03623"},{"key":"e_1_2_9_37_1","doi-asserted-by":"publisher","DOI":"10.1039\/c8ta01334a"},{"key":"e_1_2_9_38_1","doi-asserted-by":"publisher","DOI":"10.1002\/sia.6239"},{"key":"e_1_2_9_39_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.202111021"},{"key":"e_1_2_9_40_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.apsusc.2026.166064"},{"key":"e_1_2_9_41_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.nanolett.9b03460"},{"key":"e_1_2_9_42_1","doi-asserted-by":"publisher","DOI":"10.1021\/acscatal.8b03835"}],"container-title":["Small"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/smll.76022","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1002\/smll.76022","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/smll.76022","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,9,27]],"date-time":"2026-09-27T16:40:54Z","timestamp":1790527254000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/smll.76022"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,9,27]]},"references-count":41,"alternative-id":["10.1002\/smll.76022"],"URL":"https:\/\/doi.org\/10.1002\/smll.76022","archive":["Portico"],"relation":{},"ISSN":["1613-6810","1613-6829"],"issn-type":[{"value":"1613-6810","type":"print"},{"value":"1613-6829","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,9,27]]},"assertion":[{"value":"2026-07-17","order":0,"name":"re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