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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.)

Fast and Inexpensive Synthesis of Multilayer Graphene Used as Pd Support in Alkaline Direct Ethanol Fuel Cell Anode

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Author(s):
Souza, Felipe M. [1] ; Lima, Thays S. [2] ; Bohnstedt, Paula [1] ; Pinheiro, Victor S. [1] ; Batista, Bruno L. [1] ; Parreira, Luanna S. [1] ; Simoes, Fabio R. [3] ; Codognoto, Lucia [2] ; Hammer, Peter [4] ; Santos, Mauro C. [1]
Total Authors: 10
Affiliation:
[1] Univ Fed ABC UFABC, Ctr Ciencias Nat & Humanas CCNH, Lab Eletroquim & Mat Nanoestruturados LEMN, Rua Santa Adelia 166, BR-09210170 Santo Andre, SP - Brazil
[2] Univ Fed Sao Paulo UNIFESP, Inst Ciencias Quim & Farmaceut, Dept Quim, Rua Prof Artur Riedel 275, BR-09972270 Diadema, SP - Brazil
[3] Univ Fed Sao Paulo UNIFESP, Inst Mar, Rua Carvalho de Mendonca 144, BR-11070100 Santos, SP - Brazil
[4] Univ Estadual Paulista UNESP, Inst Quim Araraquara, Dept Fis Quim, BR-14800900 Araraquara, SP - Brazil
Total Affiliations: 4
Document type: Journal article
Source: ELECTROCATALYSIS; v. 12, n. 6 SEP 2021.
Web of Science Citations: 0
Abstract

Multilayer graphene (G-US) and multilayer graphene muffled (Gm-US) produced by liquid exfoliation ultrasound were used as support for Pd nanoparticles with a load of 20 wt% for application in an alkaline direct ethanol fuel cell (ADEFC) anode. The multilayer graphene-based electrocatalyst (Pd/G-US) exhibited superior current density and less positive onset potential for ethanol oxidation reaction (EOR) than the commercial Pd/C (AA). Also, the Pd/G-US electrocatalyst showed the less positive onset potential for CO oxidation. In ADEFC experiments, the Pd/G-US catalyst exhibited a superior performance with 38 mW cm(-2). The findings suggest that the defective graphene structure promotes electron transport, and the presence of oxygenated species increases hydrophilicity facilitating the oxidation of intermediates. Hence, the synthesized material can be considered as promising support for an anode in ADEFC. (AU)

FAPESP's process: 17/21846-6 - Nanostructures for environmental remediation and power generation from renewable sources
Grantee:Mauro Coelho dos Santos
Support type: Program for Research on Bioenergy (BIOEN) - Regular Program Grants
FAPESP's process: 15/10314-8 - Nanostructures for Phenol, Ciprofloxacin and 17±-ethinylestradiol Degradation
Grantee:Mauro Coelho dos Santos
Support type: Regular Research Grants
FAPESP's process: 17/22976-0 - Development of palladium and niobium nanoelectrocatalysts for alkaline direct ethanol fuel cells
Grantee:Felipe de Moura Souza
Support type: Scholarships in Brazil - Doctorate (Direct)
FAPESP's process: 17/10118-0 - Study and application of electrochemical technology for the analysis and degradation of endocrine interferents: materials, sensors, processes and scientific dissemination
Grantee:Marcos Roberto de Vasconcelos Lanza
Support type: Research Projects - Thematic Grants
FAPESP's process: 17/24742-7 - Sensors based on composites of conducting polymers and graphene aiming the determination of endocrine disruptor substances in marine environment
Grantee:Fabio Ruiz Simões
Support type: Regular Research Grants
FAPESP's process: 20/14100-0 - Sodium niobate electrodes decorated with WO3 and CeO2 for degradation of the organophosphate pesticide acephate by advanced oxidative electrochemical processes
Grantee:Felipe de Moura Souza
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 18/26307-9 - Development of Pd and Nb electrocatalysts for application in fuel cells and degradation of organic pollutants
Grantee:Paula Böhnstedt
Support type: Scholarships in Brazil - Scientific Initiation
FAPESP's process: 17/26288-1 - Hybrid electrocatalysts based on Pd, Pt and Sn nanoparticles, and on ceria nanorods for application in fuel cells
Grantee:Victor dos Santos Pinheiro
Support type: Scholarships in Brazil - Doctorate