Development of Sn@Pt core-shell nanostructures supported on vulcan and N-doped graphene as nanocatalysts for the ethylene glycol oxidation reaction

G. Hernandez-Vazquez, S. Dessources, I. L. Alonso-Lemus, B. Escobar-Morales, E. Reguera, F. J. Rodriguez-Varela

Producción científica: Capítulo del libro/informe/acta de congresoContribución a la conferenciarevisión exhaustiva

Resumen

In this work, core-shell nanocatalysts based on Sn and Pt supported on Vulcan (Sn@Pt/C) and N-doped graphene (Sn@Pt/NG) have been synthesized by the polyol method. The core-shell nanocatalysts have been tested as anode materials for the ethylene glycol oxidation reaction (EGOR) and compared with monometallic Pt/C and Pt/NG in acid medium. Electrochemical characterization by cyclic voltammetry (CV) shows that Sn@Pt/C has a higher catalytic activity than Sn@Pt/NG, Pt/C and Pt/NG for the EGOR. For example, Sn@Pt/C generates a mass and specific current density 1.3 and 3.4 times higher than Pt/C. Sn@Pt/NG also shows higher mass and specific activity than Pt/C at low overpotentials. Moreover, Sn@Pt/C and Sn@Pt/NG oxidize COadj at more negative potential than the monometallic nanocatalysts. Meanwhile, the NG support shows a positive metal-support effect, since Pt/NG is more tolerant to COads than Pt/C.

Idioma originalInglés
Título de la publicación alojadaECS Transactions
EditoresD.J. Jones, H. Gasteiger, H. Uchida, T.J. Schmidt, F. Buechi, K.E. Swider-Lyons, B.S. Pivovar, P.N. Pintauro, V.K. Ramani, J.M. Fenton, P. Strasser, K.E. Ayers, A.Z. Weber, T.F. Fuller, R.A. Mantz, H. Xu, C. Coutanceau, S. Mitsushima, S. Narayan, P. Shirvanian, Y.-T. Kim, Y. Gochi-Ponce
EditorialElectrochemical Society Inc.
Páginas575-584
Número de páginas10
Edición13
ISBN (versión digital)9781607688600
ISBN (versión impresa)9781510871731
DOI
EstadoPublicada - 2018
Publicado de forma externa
EventoSymposium on Polymer Electrolyte Fuel Cells and Electrolyzers 18, PEFC and E 2018 - AiMES 2018, ECS and SMEQ Joint International Meeting - Cancun, México
Duración: 30 sep. 20184 oct. 2018

Serie de la publicación

NombreECS Transactions
Número13
Volumen86
ISSN (versión impresa)1938-6737
ISSN (versión digital)1938-5862

Conferencia

ConferenciaSymposium on Polymer Electrolyte Fuel Cells and Electrolyzers 18, PEFC and E 2018 - AiMES 2018, ECS and SMEQ Joint International Meeting
País/TerritorioMéxico
CiudadCancun
Período30/09/184/10/18

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