2022
DOI: 10.1002/cctc.202200605
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Application of AgPt Nanoshells in Direct Methanol Fuel Cells: Experimental and Theoretical Insights of Design Electrocatalysts over Methanol Crossover Effect

Abstract: Based on theoretical simulations, the best design for obtaining AgPt nanostructures (nanoshells with hollow interior) was unraveled that could exhibit methanol tolerance for oxygen reduction reaction (ORR) that occurs during direct methanol fuel cells (DMFCs) operation. A theoretical investigation of Pt@Ag and Ag@Pt core-shell nanoparticles and AgPt nanoshells' interaction with oxygen and methanol revealed that the oxygen interaction is significantly more favorable on AgPt nanoshells' surface, hindering the me… Show more

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Cited by 6 publications
(2 citation statements)
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“…The enhanced surface properties of controlled nanostructures lead to a higher number of active and more reactive sites, facilitating the reaction with methane and yielding more The tailored design of nanocatalysts for methane conversion applications requires the careful consideration of several key factors, including catalyst composition, structure, and surface properties [19,20]. Noble metals such as palladium, platinum, and rhodium are commonly employed as active components due to their high catalytic activity and selectivity towards methane activation and subsequent transformations [21,22]. The choice of support material is critical in stabilizing and dispersing active metal nanoparticles, with oxides such as alumina, silica, and ceria being frequently used to provide a high surface area and thermal stability [23,24].…”
Section: Methane Activation Strategiesmentioning
confidence: 99%
“…The enhanced surface properties of controlled nanostructures lead to a higher number of active and more reactive sites, facilitating the reaction with methane and yielding more The tailored design of nanocatalysts for methane conversion applications requires the careful consideration of several key factors, including catalyst composition, structure, and surface properties [19,20]. Noble metals such as palladium, platinum, and rhodium are commonly employed as active components due to their high catalytic activity and selectivity towards methane activation and subsequent transformations [21,22]. The choice of support material is critical in stabilizing and dispersing active metal nanoparticles, with oxides such as alumina, silica, and ceria being frequently used to provide a high surface area and thermal stability [23,24].…”
Section: Methane Activation Strategiesmentioning
confidence: 99%
“…Electrocatalytic nanomaterials have been a topic of research in the frontiers of electrochemistry, which includes their utilization in advanced applications, such as oxidation of environmental pollutants, non-enzymatic determination of organic compounds, and efficient design of fuel cells, supercapacitors, and batteries, among others. Mainly, nanostructured metal oxides based on copper, nickel, and zinc are efficient electrocatalysts when considering non-noble precursors; thus, materials based on these oxides are highly studied. Also, although some oxides find specific utilization, many applications are mutual .…”
Section: Introductionmentioning
confidence: 99%