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However, the synthesis of intermetallic <jats:italic>L<\/jats:italic>1<jats:sub>0<\/jats:sub>\u2010<jats:italic>M<\/jats:italic>(iron triad)Pt generally requires the accurate content control of the multicomponent and the sufficient thermal energy to overcome the kinetic barrier for atom diffusion. This work reports a synthesis of sub \u22485\u00a0nm <jats:italic>L<\/jats:italic>1<jats:sub>0<\/jats:sub>\u2010intermetallic nanoparticles using phosphide intermediate\u2010induced structural phase transition. Taking the <jats:italic>L<\/jats:italic>1<jats:sub>0<\/jats:sub>\u2010CoPt intermetallic, for example, the formation of the <jats:italic>L<\/jats:italic>1<jats:sub>0<\/jats:sub> structure depends on the Co<jats:sub>2<\/jats:sub>P intermediates can provide abundant P vacancies to accelerate the Pt diffusion into the orthorhombic Co\u2010rich skeletons, instead of the traditional route of intermetallic from solid solution. <jats:italic>L<\/jats:italic>1<jats:sub>0<\/jats:sub>\u2010CoPt prepared by this method has a high degree of ordering and shows the broad adaptability of various Pt\u2010based electrocatalysts with different loading and states to improve their electrocatalytic performance. Additionally, the other <jats:italic>L<\/jats:italic>1<jats:sub>0<\/jats:sub>\u2010<jats:italic>M<\/jats:italic>(iron triad)Pt intermetallics, i.e., <jats:italic>L<\/jats:italic>1<jats:sub>0<\/jats:sub>\u2010NiPt and <jats:italic>L<\/jats:italic>1<jats:sub>0<\/jats:sub>\u2010FePt, are also prepared through this phosphide\u2010induced phase transition. The findings provide a promising strategy for designing other intermetallic materials alloy materials using a structural phase transition induced by a second phase.<\/jats:p>","DOI":"10.1002\/adma.202207995","type":"journal-article","created":{"date-parts":[[2022,11,23]],"date-time":"2022-11-23T13:40:38Z","timestamp":1669210838000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":48,"title":["Synthesis of <i>L<\/i>1<sub>0<\/sub>\u2010Iron Triad (Fe, Co, Ni)\/Pt Intermetallic Electrocatalysts via a Phosphide\u2010Induced Structural Phase Transition"],"prefix":"10.1002","volume":"35","author":[{"given":"Jingyu","family":"Guan","sequence":"first","affiliation":[{"name":"State Key Laboratory of Chemical Resource Engineering Beijing Key Laboratory of Electrochemical Process and Technology for Materials Beijing University of Chemical Technology  Beijing 100029 P. R. China"},{"name":"Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical Technology  Beijing 100029 P. R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jianqi","family":"Zhang","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Chemical Resource Engineering Beijing Key Laboratory of Electrochemical Process and Technology for Materials Beijing University of Chemical Technology  Beijing 100029 P. R. China"},{"name":"Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical Technology  Beijing 100029 P. R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xinliang","family":"Wang","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Chemical Resource Engineering Beijing Key Laboratory of Electrochemical Process and Technology for Materials Beijing University of Chemical Technology  Beijing 100029 P. R. China"},{"name":"Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical Technology  Beijing 100029 P. R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6113-3072","authenticated-orcid":false,"given":"Zhengping","family":"Zhang","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Chemical Resource Engineering Beijing Key Laboratory of Electrochemical Process and Technology for Materials Beijing University of Chemical Technology  Beijing 100029 P. R. China"},{"name":"Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical Technology  Beijing 100029 P. R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7901-3693","authenticated-orcid":false,"given":"Feng","family":"Wang","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Chemical Resource Engineering Beijing Key Laboratory of Electrochemical Process and Technology for Materials Beijing University of Chemical Technology  Beijing 100029 P. R. China"},{"name":"Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical Technology  Beijing 100029 P. R. 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