Artículo
PtPdNi Catalysts Supported on Porous Carbon for Ethanol Electro-oxidation
Arroyo Gómez, José Joaquín; Barrera Diaz, Deicy Amparo
; Castagna, Rodrigo Martín
; Sieben, Juan Manuel
; Alvarez, Andrea Elizabeth
; Duarte, Marta María Elena; Sapag, Manuel Karim
Fecha de publicación:
07/08/2019
Editorial:
Wiley VCH Verlag
Revista:
Chemcatchem
ISSN:
1867-3880
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
In this work, we prepared four electrocatalysts based on trimetallic PtPdNi nanoparticles on different carbon supports, i. e., i) two activated carbons produced from biomass, ii) micro‐mesoporous carbon synthesized by the nanocasting method, and iii) commercial carbon black. The electrocatalytic activity of the prepared materials was tested in the electro‐oxidation of ethanol in alkaline medium. Well‐distributed nanoparticles with sizes in the range of 3.5–5.2 nm were obtained through galvanic replacement. The bulk Pt, Pd and Ni contents were about 65, 25 and 15 at. %, measured by EDX and ICP‐AES. By XPS the surface Pt : Pd atomic ratios were in the range of 1.82–2.2. Electrochemical experiments showed that the trimetallic nanoparticles deposited over micro‐mesoporous carbon material exhibit the highest electrochemical activity towards ethanol electro‐oxidation in alkaline medium. Results showed that both synthetic carbon and biomass‐derived carbon are suitable materials to support electrocatalysts in low‐temperature fuel cells.
Palabras clave:
NANOPARTICLES
,
NANOPOROUS CARBONS
,
ETHANOL ELECTRO-OXIDATION
,
FUEL CELL
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Identificadores
Colecciones
Articulos(CCT - BAHIA BLANCA)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - BAHIA BLANCA
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - BAHIA BLANCA
Citación
Arroyo Gómez, José Joaquín; Barrera Diaz, Deicy Amparo; Castagna, Rodrigo Martín; Sieben, Juan Manuel; Alvarez, Andrea Elizabeth; et al.; PtPdNi Catalysts Supported on Porous Carbon for Ethanol Electro-oxidation; Wiley VCH Verlag; Chemcatchem; 11; 15; 7-8-2019; 3451-3464
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