{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,28]],"date-time":"2026-09-28T17:57:12Z","timestamp":1790618232534,"version":"4.1.0"},"reference-count":22,"publisher":"American Chemical Society (ACS)","issue":"37","license":[{"start":{"date-parts":[[2026,9,9]],"date-time":"2026-09-09T00:00:00Z","timestamp":1788912000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100006087","name":"Direcci?n General de Asuntos del Personal Acad?mico, Universidad Nacional Aut?noma de M?xico","doi-asserted-by":"publisher","award":["PAPIIT IN-112025"],"award-info":[{"award-number":["PAPIIT IN-112025"]}],"id":[{"id":"10.13039\/501100006087","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,9,22]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Controlling particle morphology is an effective strategy to tune the catalytic behavior of bimetallic nanostructures. Here, we report a simple PDDA-assisted polyol approach to induce systematic shape modulation in nickel\u2013platinum nanostructures. By adjusting the concentration of poly(diallyldimethylammonium chloride) (PDDA) and the relative Ni\/Pt precursor ratio, a gradual morphological evolution was observed, ranging from truncated octahedra to stepped pyramidal and branched flower-like architectures. High-resolution transmission electron microscopy revealed that low PDDA contents promote the development of stepped growth features, whereas increasing PDDA concentrations favor the formation of more complex branched assemblies, consistent with a flocculation-assisted growth pathway. Variations in the Ni\/Pt precursor ratio were found to influence compositional trends and surface-related structural characteristics. Catalytic tests using the reduction of 4-nitrophenol as a model reaction showed enhanced activity for these novel nanostructures. Overall, this study highlights the versatility of PDDA as a polymeric growth modulator and emphasizes morphology control as a practical strategy for designing efficient Ni\u2013Pt-based nanocatalysts through a simple wet-chemical approach.<\/jats:p>","DOI":"10.1021\/acsomega.6c03056","type":"journal-article","created":{"date-parts":[[2026,9,9]],"date-time":"2026-09-09T19:02:15Z","timestamp":1788980535000},"page":"55251-55260","source":"Crossref","is-referenced-by-count":0,"title":["Shape Tailoring of Nonconventional Ni\u2013Pt Nanoparticles\nthrough a PDDA-Polyol Method"],"prefix":"10.1021","volume":"11","author":[{"given":"Brayan","family":"Maqueda","sequence":"first","affiliation":[{"name":"Universidad Nacional Auto\u0301noma de Me\u0301xico , . Circuito Exterior, Ciudad Universitaria , ,","place":["Ciudad de Me\u0301xico, Mexico, 04510"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ariadna","family":"Pe\u0301rez-Pe\u0301rez","sequence":"additional","affiliation":[{"name":"Universidad Nacional Auto\u0301noma de Me\u0301xico , . Circuito Exterior, Ciudad Universitaria , ,","place":["Ciudad de Me\u0301xico, Mexico, 04510"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0000-8356-9769","authenticated-orcid":true,"given":"Alexis","family":"Hellmer","sequence":"additional","affiliation":[{"name":"Universidad Nacional Auto\u0301noma de Me\u0301xico , . Circuito Exterior, Ciudad Universitaria , ,","place":["Ciudad de Me\u0301xico, Mexico, 04510"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Miriam M. Tellez","family":"Cruz","sequence":"additional","affiliation":[{"name":"Universidad Nacional Auto\u0301noma de Me\u0301xico , . Circuito Exterior, Ciudad Universitaria , ,","place":["Ciudad de Me\u0301xico, Mexico, 04510"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9195-4488","authenticated-orcid":true,"given":"Lourdes","family":"Baza\u0301n-Di\u0301az","sequence":"additional","affiliation":[{"name":"Universidad Nacional Auto\u0301noma de Me\u0301xico , . Circuito Exterior, Ciudad Universitaria , ,","place":["Ciudad de Me\u0301xico, Mexico, 04510"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8831-1983","authenticated-orcid":true,"given":"Rube\u0301n","family":"Mendoza-Cruz","sequence":"additional","affiliation":[{"name":"Universidad Nacional Auto\u0301noma de Me\u0301xico , . 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