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dc.contributor.author
Sieben, Juan Manuel
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dc.contributor.author
Castagna, Rodrigo Martín
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dc.contributor.author
Alvarez, Andrea Elizabeth
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dc.contributor.author
Duarte, Marta María Elena
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dc.contributor.other
Junhui, He
dc.date.available
2020-12-18T13:21:55Z
dc.date.issued
2019
dc.identifier.citation
Sieben, Juan Manuel; Castagna, Rodrigo Martín; Alvarez, Andrea Elizabeth; Duarte, Marta María Elena; Core-Shell Nanoparticles and Three-Dimensional Nanostructured Materials as Electrocatalysts for Direct Alcohol Fuel Cells: How to Use Less Platinum and Not Die Trying; Nova Science Publishers; 2019; 61-106
dc.identifier.isbn
978-1-53615-014-8
dc.identifier.uri
http://hdl.handle.net/11336/120826
dc.description.abstract
Today, the major challenges that have to be overcome for a massive production and commercialization of direct alcohol fuel cell (DAFC) technologies for stationary, portable and transportation applications are the high cost and scarcity of noble metals, the deficient activity and selectivity of anode electrocatalysts and the long-term stability of the electrodes at temperatures compatible with available ionomeric membranes. In recent years, several strategies have been undertaken for improving the catalytic properties of Ptbased systems and for enhancing the noble metal utilization. A new approach to prepare highly active, selective and durable catalysts with low Pt loading comprises the production of multimetallic nanoparticles with a core-shell structure. Other promising strategy for the manufacture of nanostructured electrodes relies on the synthesis of three-dimensional materials to obtain thin-layered membrane-electrode assemblies (MEAs). The unsupported three-dimensional catalysts with core-shell structure provides high surface areas with low Pt loading, low contact resistance between current collector and electrode, facilitated mass transport of reactants and products and good longterm stability under operating conditions. Overall, the core-shell architecture makes possible the design of catalysts with several unique properties just by selecting the metals that form the shell and core. These elements can be chosen taking into account the segregation properties of the metals and their electronic and strain-inducing effects on the Pt shell. Studies have shown that the performance of core-shell systems is dependent on the crystalline structure and composition of the core and the lattice strain at the core-shell interface. According to the literature, the enhanced electrocatalytic properties of core-shell catalysts compared to conventional Pt-based materials can be explained in terms of the electronic modification of the shell by the core, lattice strain at the core-shell interface and improved Pt utilization.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Nova Science Publishers
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
NANOSTRUCTURED MATERIALS
dc.subject
SYNTHESIS
dc.subject
PROPERTIES
dc.subject
APPLICATIONS
dc.subject.classification
Nano-materiales
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dc.subject.classification
Nanotecnología
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dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
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dc.title
Core-Shell Nanoparticles and Three-Dimensional Nanostructured Materials as Electrocatalysts for Direct Alcohol Fuel Cells: How to Use Less Platinum and Not Die Trying
dc.type
info:eu-repo/semantics/publishedVersion
dc.type
info:eu-repo/semantics/bookPart
dc.type
info:ar-repo/semantics/parte de libro
dc.date.updated
2020-11-11T18:46:14Z
dc.journal.pagination
61-106
dc.journal.pais
Estados Unidos
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dc.journal.ciudad
Boca Ratón
dc.description.fil
Fil: Sieben, Juan Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca; Argentina. Universidad Nacional del Sur. Departamento de Ingeniería Química. Instituto de Ingeniería Electroquímica y Corrosión; Argentina
dc.description.fil
Fil: Castagna, Rodrigo Martín. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Sur. Departamento de Ingeniería Química. Instituto de Ingeniería Electroquímica y Corrosión; Argentina
dc.description.fil
Fil: Alvarez, Andrea Elizabeth. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Sur. Departamento de Ingeniería Química. Instituto de Ingeniería Electroquímica y Corrosión; Argentina
dc.description.fil
Fil: Duarte, Marta María Elena. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas; Argentina. Universidad Nacional del Sur. Departamento de Ingeniería Química. Instituto de Ingeniería Electroquímica y Corrosión; Argentina
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://novapublishers.com/shop/nanostructured-materials-synthesis-properties-and-applications/
dc.conicet.paginas
418
dc.source.titulo
Nanostructured Materials: Synthesis, Properties and Applications
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