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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Electro-oxidation of ethanol in acid medium using carbon-supported PtRh nanoparticles with (100) preferential orientation

Full text
Author(s):
Pereira Filho, N. G. [1] ; Souza, R. F. B. [1] ; Ramos, A. S. [1] ; Antoniassi, R. M. [1] ; Oliveira Neto, A. [1] ; Spinace, V, E.
Total Authors: 6
Affiliation:
[1] V, IPEN CNEN SP, Inst Pesquisas Energet & Nucl, Av Prof Lineu Prestes 2242, Cidade Univ, BR-05508900 Sao Paulo, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: International Journal of Electrochemical Science; v. 16, n. 11 NOV 2021.
Web of Science Citations: 0
Abstract

Carbon-supported PtRh nanoparticles with preferential (100) orientation was prepared by an alcoholreduction process using KBr as a shape directing agent. The electrocatalysts were characterized by EDX (energy-dispersive X-ray analysis), XRD (X-ray diffraction) and TEM (Transmission electron microscopy). The electro-oxidation of ethanol was studied by cyclic voltammetry and chronoamperometry at room temperature in acid medium. On-line differential mass spectrometry experiments were performed on a single cell of a direct ethanol fuel cell (DEFC) at 60 degrees C and the anodic effluents were analyzed by ATR-FTIR. PtRh/C (100) electrocatalyst showed cubic-like morphology and average nanoparticles size of 8 nm and provided superior DEFC performance (density power per Pt active area) and CO2 selectivity compared to polycrystalline PtRh/C and commercial Pt/C electrocatalysts. (AU)

FAPESP's process: 17/11937-4 - A sustainable path to methane conversion by advanced electrochemical technologies
Grantee:Fabio Coral Fonseca
Support Opportunities: Research Grants - Research Centers in Engineering Program
FAPESP's process: 18/04596-9 - Multi-user equipment approved in the grant 2017/11937-4: experimental system for termochemical conversion of methane
Grantee:Fabio Coral Fonseca
Support Opportunities: Multi-user Equipment Program
FAPESP's process: 18/04595-2 - Multi-user equipment approved in the grant 2017/11937-4: experimental system for electrochemical conversion of methane
Grantee:Fabio Coral Fonseca
Support Opportunities: Multi-user Equipment Program