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Herein, we demonstrate that a PtPb core\/tensile strained Pt shell with surface Pb-modified nanosheets (PtPb@Pt@Pb NSs) alleviates the CO poisoning of Pt, thereby enhancing its MOR activity and durability. Benefiting from the lattice expansion of Pt and the surface Pb, PtPb@Pt@Pb NSs\/C exhibits superior MOR activity and durability. Corresponding experiments and density functional theory (DFT) calculations reveal that both the lattice-stretched Pt shell and the surface Pb enhance the OH adsorption for oxidative removal of the adsorbed CO and weaken CO binding on Pt. Meanwhile, the synergistic effect between the tensile-strained Pt and surface Pb layer lowers the reaction energy barrier of the rate-determining step for MOR, thereby endowing it with excellent activity.<\/jats:p>","DOI":"10.1021\/acs.nanolett.6c02470","type":"journal-article","created":{"date-parts":[[2026,7,21]],"date-time":"2026-07-21T14:53:32Z","timestamp":1784645612000},"page":"9912-9921","source":"Crossref","is-referenced-by-count":0,"title":["Lattice-Expanded Pt Overlayer with Surface Pb Modulation\non a PtPb Alloy toward High-Efficiency Methanol Oxidation"],"prefix":"10.1021","volume":"26","author":[{"given":"Chaowei","family":"Zhang","sequence":"first","affiliation":[{"name":"Henan University , , ,","place":["Kaifeng, China, 475004"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mengmeng","family":"Xu","sequence":"additional","affiliation":[{"name":"Soochow University , , ,","place":["Suzhou, China, 215123"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiashuo","family":"Gu","sequence":"additional","affiliation":[{"name":"Henan University , , ,","place":["Kaifeng, China, 475004"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiaqing","family":"Li","sequence":"additional","affiliation":[{"name":"Henan University , , ,","place":["Kaifeng, China, 475004"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8647-8694","authenticated-orcid":true,"given":"Xiaozhi","family":"Liu","sequence":"additional","affiliation":[{"name":"Chinese Academy of Sciences , , ,","place":["Beijing, China, 100019"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wei-Hsiang","family":"Huang","sequence":"additional","affiliation":[{"name":"National Synchrotron Radiation Research Center (NSRRC) , ,","place":["Hsinchu, Taiwan, 300092"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7681-4391","authenticated-orcid":true,"given":"Chih-Wen","family":"Pao","sequence":"additional","affiliation":[{"name":"National Synchrotron Radiation Research Center , 101 Hsin-Ann Road , ,","place":["Hsinchu, Taiwan, 30076"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3177-2073","authenticated-orcid":true,"given":"Yujin","family":"Ji","sequence":"additional","affiliation":[{"name":"Soochow University , , ,","place":["Suzhou, China, 215123"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5248-2756","authenticated-orcid":true,"given":"Youyong","family":"Li","sequence":"additional","affiliation":[{"name":"Soochow University , , ,","place":["Suzhou, China, 215123"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0324-2227","authenticated-orcid":true,"given":"Zhiwei","family":"Hu","sequence":"additional","affiliation":[{"name":"Max Planck Institute for Chemical Physics of Solids , Nothnitzer Strasse 40 , ,","place":["Dresden, Germany, 01187"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7495-7110","authenticated-orcid":true,"given":"Feng","family":"Bai","sequence":"additional","affiliation":[{"name":"Henan University , , ,","place":["Kaifeng, China, 475004"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0007-2458-0686","authenticated-orcid":true,"given":"Juntao","family":"Zhang","sequence":"additional","affiliation":[{"name":"Henan University , , ,","place":["Kaifeng, China, 475004"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"316","published-online":{"date-parts":[[2026,7,21]]},"reference":[{"issue":"24","key":"2026080510134904800_cit1","doi-asserted-by":"publisher","first-page":"12397","DOI":"10.1021\/cr400389f","article-title":"Anode catalysts for direct methanol fuel cells in acidic\nmedia: Do we have any alternative for Pt or Pt\u2013Ru?","volume":"114","author":"Kakati","year":"2014","journal-title":"Chem. Rev."},{"issue":"8","key":"2026080510134904800_cit2","doi-asserted-by":"publisher","first-page":"2773","DOI":"10.1021\/jacs.7b13612","article-title":"Strain engineering\nto enhance the electrooxidation performance of atomic-layer Pt on\nintermetallic Pt3Ga","volume":"140","author":"Feng","year":"2018","journal-title":"J. Am. Chem.\nSoc."},{"issue":"6","key":"2026080510134904800_cit3","doi-asserted-by":"publisher","DOI":"10.1126\/sciadv.1700580","article-title":"A selective electrocatalyst\u2013based direct methanol\nfuel cell operated at high concentrations of methanol","volume":"3","author":"Feng","year":"2017","journal-title":"Sci. Adv."},{"key":"2026080510134904800_cit4","doi-asserted-by":"publisher","first-page":"224","DOI":"10.1016\/j.jpowsour.2015.07.094","article-title":"A review\non durability issues and restoration techniques in long-term operations\nof direct methanol fuel cells","volume":"297","author":"Mehmood","year":"2015","journal-title":"J. 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