{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,8]],"date-time":"2026-05-08T20:07:04Z","timestamp":1778270824326,"version":"3.51.4"},"reference-count":37,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2024,3,9]],"date-time":"2024-03-09T00:00:00Z","timestamp":1709942400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"UNAM","award":["PAPIIT-IN219224"],"award-info":[{"award-number":["PAPIIT-IN219224"]}]},{"name":"UNAM","award":["PAIP-5000\u20139014"],"award-info":[{"award-number":["PAIP-5000\u20139014"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>This study investigates the potential of using gold nanoparticles (Au NPs) synthesized from e-waste as electrocatalysts for the methanol oxidation reaction (MOR), with the aim of applying them as an anode in alkaline direct methanol fuel cells (ADMFCs). The research addresses the pressing environmental challenge of e-waste disposal and explores the recycling of e-waste to obtain valuable materials for sustainable applications. Vulcan-supported gold nanoparticles (Aue-w\/C NPs) are synthesized from gold coatings recovered from Intel Pentium 4 processor pins, demonstrating the feasibility of e-waste as electrocatalyst precursors. Comprehensive characterization techniques such as UV-Vis spectroscopy, high-resolution transmission and transmission electron microscopy (HR-TEM, TEM), selected area electron diffraction (SAED), scanning electron microscopy (SEM), and X-ray diffraction (XRD) are employed to evaluate the structural properties of the electrocatalyst. Electrochemical evaluation in 0.5 M KOH electrolyte by cyclic voltammetry reveals that the synthesized Aue-w\/C NPs exhibit electrocatalytic activity (25.5 mA\u00b7mg\u22121Au) comparable to their commercially synthesized counterparts (30.1 mA\u00b7mg\u22121Au). This study highlights the potential for sustainable approaches in the production of electrocatalysts by utilizing e-waste as a source of valuable catalyst materials. It represents a pioneering effort in harnessing e-waste as a sustainable resource, offering new avenues for sustainable energy technologies while addressing environmental concerns and technological challenges in the field of ADMFCs.<\/jats:p>","DOI":"10.3390\/ma17061267","type":"journal-article","created":{"date-parts":[[2024,3,11]],"date-time":"2024-03-11T04:51:12Z","timestamp":1710132672000},"page":"1267","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Methanol Oxidation Reaction in Alkaline Media Using Gold Nanoparticles Recovered from Electronic Waste"],"prefix":"10.3390","volume":"17","author":[{"given":"Mariana","family":"Baruch-Soto","sequence":"first","affiliation":[{"name":"Department of Theoretical Physics and Chemistry, Faculty of Chemistry, National Autonomous University of Mexico, Mexico City 04510, Mexico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lorena","family":"Magall\u00f3n-Cacho","sequence":"additional","affiliation":[{"name":"CONAHCYT-Center for Research in Engineering and Applied Sciences, Autonomous University of the State of Morelos, Cuernavaca 62209, Mexico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jeannete","family":"Ram\u00edrez-Aparicio","sequence":"additional","affiliation":[{"name":"CONAHCYT-Center for Research in Engineering and Applied Sciences, Autonomous University of the State of Morelos, Cuernavaca 62209, Mexico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6055-2400","authenticated-orcid":false,"given":"Jes\u00fas","family":"Ortega-Guzm\u00e1n","sequence":"additional","affiliation":[{"name":"Condensed Matter Department, Physics Institute, National Autonomous University of Mexico, Mexico City 04510, Mexico"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9506-2092","authenticated-orcid":false,"given":"Edgar","family":"Borja-Arco","sequence":"additional","affiliation":[{"name":"Department of Theoretical Physics and Chemistry, Faculty of Chemistry, National Autonomous University of Mexico, Mexico City 04510, Mexico"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2024,3,9]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"7263","DOI":"10.3390\/su15097263","article-title":"Assessing Strategic Management of E-Waste in Developing Countries","volume":"15","author":"Awasthi","year":"2023","journal-title":"Sustainability"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"557","DOI":"10.1007\/978-981-99-1726-6_43","article-title":"Easy E-Waste: A Novel Approach Toward Efficient and Sustainable E-Waste Management","volume":"Volume 665","author":"Jennifer","year":"2023","journal-title":"Intelligent Sustainable Systems"},{"key":"ref_3","first-page":"69","article-title":"Electronic Waste Management: Challenges and Opportunities","volume":"Volume 1","author":"Anoop","year":"2020","journal-title":"Environmental Microbiology and Biotechnology"},{"key":"ref_4","first-page":"107977","article-title":"Utilization of e-wastes as a sustainable silica source in synthesis of ordered mesostructured titania nanocomposites with high adsorption and photoactivity","volume":"191","author":"Liou","year":"2023","journal-title":"Miner. 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