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However, most high\u2010performance oxygen evolution reaction (OER) catalysts are poorly adhered to conductive substrates, such as nickel foam or carbon paper, leading to detachment and performance degradation under harsh industrial conditions. Here, we report a simple and scalable strategy of \u201cimmersion\u2010infrared drying\u2010calcination\u201d to fabricate Al\u2010doped spinel oxides in situ grown on mechanically robust Ni mesh. By further simple cation substitution, we effectively modulate the metal\u2010oxygen bond length in the octahedral center and the valence state of active sites, significantly enhancing OER activity. Electrochemical tests (1 M KOH, 25\u00b0C) show that NiAl<jats:sub>0.5<\/jats:sub>Co<jats:sub>1.5<\/jats:sub>O<jats:sub>4<\/jats:sub> exhibits excellent performance with an overpotential of 234\u00a0mV at a current density of 10\u00a0mA cm<jats:sup>\u22122<\/jats:sup>. Remarkably, under industrial conditions (6 M KOH, 60\u00b0C), it achieves an overpotential of only 448\u00a0mV at a current density of 400\u00a0mA\u00a0cm<jats:sup>\u22122<\/jats:sup>, which is superior to that of commercial Raney Ni catalysts. Moreover, the scalable electrode demonstrates excellent resistance to concentrated alkaline solutions and high current densities.<\/jats:p>","DOI":"10.1002\/chem.202403550","type":"journal-article","created":{"date-parts":[[2025,4,7]],"date-time":"2025-04-07T09:21:21Z","timestamp":1744017681000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Homogeneous Coating of Al\u2010Doped Spinel Oxides on Ni Mesh for Efficient Oxygen Evolution Reaction"],"prefix":"10.1002","volume":"31","author":[{"given":"Ji Kai","family":"Liu","sequence":"first","affiliation":[{"name":"Key Laboratory for Ultrafine Materials of Ministry of Education School of Materials Science and Engineering East China University of Science and Technology  Shanghai China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ying Ying","family":"Sun","sequence":"additional","affiliation":[{"name":"Key Laboratory for Ultrafine Materials of Ministry of Education School of Materials Science and Engineering East China University of Science and Technology  Shanghai China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yi Xiao","family":"Wu","sequence":"additional","affiliation":[{"name":"Key Laboratory for Ultrafine Materials of Ministry of Education School of Materials Science and Engineering East China University of Science and Technology  Shanghai China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Peng Fei","family":"Liu","sequence":"additional","affiliation":[{"name":"Key Laboratory for Ultrafine Materials of Ministry of Education School of Materials Science and Engineering East China University of Science and Technology  Shanghai China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0436-8622","authenticated-orcid":false,"given":"Hua Gui","family":"Yang","sequence":"additional","affiliation":[{"name":"Key Laboratory for Ultrafine 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