Title
Catalytic enhancement of formic acid electro-oxidation through surface modifications with gold on supported Pt nanoparticles
Date Issued
15 January 2019
Access level
metadata only access
Resource Type
journal article
Author(s)
Cappellari P.S.
Coneo-Rodríguez R.
Moreno M.S.
Barbero C.A.
Planes G.A.
Publisher(s)
Elsevier Ltd
Abstract
The Formic Acid Electro-oxidation (FAEO) on Pt/Au Nanoparticles (PtAu NP) supported on Hierarchical Porous Carbon (HPC), was studied by cyclic voltammetry and chronoamperometry. The supported HPC-Pt nanoparticles were surface modified by Au spontaneous deposits. The morphological and compositional characterization was performed by Scanning Electron Microscopy (SEM) coupled with Electron Dispersive Spectroscopy (EDS). A significant increase of the current densities for FAEO in the potential region 0.1–0.75 VRHE was observed on HPC-PtAu catalysts. The comparison with HPC-Pt electrodes results show that Au atoms presence on Pt nanoparticles is a key factor to improve the catalysts performance. Based on our results, a clear change in FAEO mechanism on HPC-PtAu catalysts with respect to HPC-Pt was evidenced.
Start page
1967
End page
1972
Volume
44
Issue
3
Language
English
OCDE Knowledge area
Química orgánica
Subjects
Scopus EID
2-s2.0-85057598364
Source
International Journal of Hydrogen Energy
ISSN of the container
03603199
Sponsor(s)
The authors thank financial support from Agencia Nacional de Promoción Científica y Tecnológica (Argentina, Project PICT 2010-2421 ), CONICET (Argentina, Project PIP 112-201101-01035 ). CAB, and GAP are permanent research fellows of CONICET. PSC and AMBM thank to Consejo Nacional de Investigaciones Científicas y Técnicas -CONICET for a graduate fellowship.
Sources of information:
Directorio de Producción Científica
Scopus