{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,16]],"date-time":"2026-09-16T07:04:33Z","timestamp":1789542273070,"version":"build-2803163510"},"reference-count":43,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,9,15]],"date-time":"2026-09-15T00:00:00Z","timestamp":1789430400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,9,15]],"date-time":"2026-09-15T00:00:00Z","timestamp":1789430400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"funder":[{"DOI":"10.13039\/501100005230","name":"Natural Science Foundation of Chongqing Municipality","doi-asserted-by":"publisher","award":["CSTB2023NSCQ\u2010MSX0378"],"award-info":[{"award-number":["CSTB2023NSCQ\u2010MSX0378"]}],"id":[{"id":"10.13039\/501100005230","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Angew Chem Int Ed"],"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>\n                    Lattice strain engineering can regulate the electronic structure of electrocatalysts, but stabilizing distorted metastable phases remains challenging. Here, we report an N,N\u2010dimethylformamide\u2010assisted strategy for synthesizing metastable hexagonal close\u2010packed (HCP) Ni nanoparticles with local lattice\u2010spacing deviations reaching approximately 5.2%. Structural and spectroscopic analyses support a dilute interstitial\u2010carbon\u2010stabilized HCP Ni framework dominated by expanded metallic Ni\u2500Ni coordination rather than ordered Ni\n                    <jats:sub>3<\/jats:sub>\n                    C. Carbon\u2010associated perturbations inhibit structural relaxation and retain the distorted HCP framework. Operando x\u2010ray absorption and infrared spectroscopies indicate the formation of a NiOOH\u2010like working surface coupled to an HCP\u2010derived subsurface framework, accompanied by potential\u2010dependent changes in the interfacial hydrogen\u2010bonding environment and urea\u2010derived species. Calculations using idealized metallic models show that HCP lattice strain induces a Ni d\u2010band upshift, anisotropic Ni\u2500Ni bonding, and localized charge redistribution, modifying adsorption\u2010energy trends for the urea oxidation reaction. The optimized HCP\u2010Ni delivers an apparent steady\u2010state Tafel slope of 26.95\u00a0mV\u00a0dec\n                    <jats:sup>\u22121<\/jats:sup>\n                    , over twice the electrochemically active surface area\u2010normalized activity of the face\u2010centered cubic\u2010containing controls, and approximately 98% apparent urea conversion after 22\u00a0h. It sustains current for over 120\u00a0h in three\u2010electrode testing and enables over 400\u00a0h of urea\u2010assisted zinc\u2013air battery cycling. This work demonstrates dilute interstitial\u2010carbon stabilization as a route to strained metastable electrocatalysts.\n                  <\/jats:p>","DOI":"10.1002\/anie.2874510","type":"journal-article","created":{"date-parts":[[2026,9,16]],"date-time":"2026-09-16T06:30:52Z","timestamp":1789540252000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Dilute Interstitial Carbon Stabilization of Highly Strained Metastable HCP Nickel for Enhanced Electrocatalysis"],"prefix":"10.1002","author":[{"given":"Qian","family":"Xue","sequence":"first","affiliation":[{"name":"School of Chemistry and Chemical Engineering Chongqing University of Technology  Chongqing China"},{"name":"Catalonia Institute for Energy Research \u2010 IREC  Sant Adri\u00e0 de Bes\u00f2s Spain"},{"name":"Facultat De F\u00edsica Enginyeria Electr\u00f2nica i Biom\u00e8dica Universitat De Barcelona  Barcelona Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7620-745X","authenticated-orcid":false,"given":"Jing","family":"Yu","sequence":"additional","affiliation":[{"name":"Catalonia Institute for Energy Research \u2010 IREC  Sant Adri\u00e0 de Bes\u00f2s Spain"},{"name":"Catalan Institute of Nanoscience and Nanotechnology \u2010 ICN2 (CSIC and BIST)  Barcelona Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Juguo","family":"Dai","sequence":"additional","affiliation":[{"name":"Catalonia Institute for Energy Research \u2010 IREC  Sant Adri\u00e0 de Bes\u00f2s Spain"},{"name":"Fujian Provincial Key Laboratory of Fire Retardant Materials College of Materials Xiamen University  Xiamen China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0006-9953-5698","authenticated-orcid":false,"given":"Linlin","family":"Yang","sequence":"additional","affiliation":[{"name":"Catalonia Institute for Energy Research \u2010 IREC  Sant Adri\u00e0 de Bes\u00f2s Spain"},{"name":"ICFO \u2010 Institut de Ci\u00e8ncies Fot\u00f2niques The Barcelona Institute of Science and Technology  Castelldefels Barcelona Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaoyu","family":"Bi","sequence":"additional","affiliation":[{"name":"Catalonia Institute for Energy Research \u2010 IREC  Sant Adri\u00e0 de Bes\u00f2s Spain"},{"name":"Facultat De F\u00edsica Enginyeria Electr\u00f2nica i Biom\u00e8dica Universitat De Barcelona  Barcelona Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6870-4149","authenticated-orcid":false,"given":"Yuchuan","family":"Ren","sequence":"additional","affiliation":[{"name":"Catalonia Institute for Energy Research \u2010 IREC  Sant Adri\u00e0 de Bes\u00f2s Spain"},{"name":"Facultat De F\u00edsica Enginyeria Electr\u00f2nica i Biom\u00e8dica Universitat De Barcelona  Barcelona 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