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Stimulation of ethylene glycol electrooxidation on electrodeposited Ni–PbO2–GN nanocomposite in alkaline medium. J APPL ELECTROCHEM 2022. [DOI: 10.1007/s10800-022-01792-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
AbstractIn this work, a novel system composed of non-precious nickel-based metal oxide/reduced graphene oxide nanocomposite (Ni–PbO2–GN) is used for electrooxidation of ethylene glycol (EG) in 1.0 M NaOH solution and compares its activity with that of Ni, Ni–GN, and Ni–PbO2. The facile electrodeposition technique is used to prepare the catalysts on glassy carbon (GC) substrates. The outcomes of electrochemical measurements show a high performance towards EG oxidation is obtained for Ni-nanocomposite electrodes compared to that of Ni mainly due to their higher surface areas. The excellent electrocatalytic properties of the Ni-nanocomposite could be ascribed to the synergistic contributions of PbO2 and graphene (GN) nano-sheets that help the reduction of Ni grains. A smaller charge transfer resistance value of 34.5 Ω cm2 for EG oxidation reaction at + 360 mV is recorded for GC/Ni–PbO2–GN compared to the other prepared electrodes. Moreover, it exhibits higher kinetic parameters of EG such as diffusion coefficient (D = 3.9 × 10–10 cm2 s−1) and charge transfer rate constant (ks = 32.5 mol−1 cm3 s−1). The overall performance and stability of the prepared catalysts towards EG electrooxidation have been estimated to be in the order of GC/Ni–PbO2–GN > GC/Ni–GN > GC/Ni–PbO2 > GC/Ni.
Graphical abstract
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Del Colle V, Melle G, Previdello BA, Feliu JM, Varela H, Tremiliosi-Filho G. The effect of Pt surface orientation on the oscillatory electro-oxidation of glycerol. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Marinho VL, Antolini E, Giz MJ, Camara GA, Pocrifka LA, Passos RR. Ethylene glycol oxidation on carbon supported binary PtM (M = Rh, Pd an Ni) electrocatalysts in alkaline media. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2020.114859] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Sandrini RMLM, Sempionatto JR, Tremiliosi‐Filho G, Herrero E, Feliu JM, Souza‐Garcia J, Angelucci CA. Electrocatalytic Oxidation of Glycerol on Platinum Single Crystals in Alkaline Media. ChemElectroChem 2019. [DOI: 10.1002/celc.201900311] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Regiani M. L. M. Sandrini
- Federal University of ABCCenter for Natural and Human Sciences Av. dos Estados, 5001 09210-580 Santo André-SP Brazil
| | - Juliane R. Sempionatto
- Department of NanoEngineeringUniversity of California San Diego, La Jolla, California 92093 United States
| | - Germano Tremiliosi‐Filho
- Institute of Chemistry of São CarlosUniversity of São Paulo P.O. Box 780 13560-970 São Carlos São Paulo Brazil
| | - Enrique Herrero
- Instituto de EletroquímicaUniversidad de Alicante Apdo. 99 E-03080 Alicante Spain
| | - Juan M. Feliu
- Instituto de EletroquímicaUniversidad de Alicante Apdo. 99 E-03080 Alicante Spain
| | - Janaina Souza‐Garcia
- Federal University of ABCCenter for Natural and Human Sciences Av. dos Estados, 5001 09210-580 Santo André-SP Brazil
| | - Camilo A. Angelucci
- Federal University of ABCCenter for Natural and Human Sciences Av. dos Estados, 5001 09210-580 Santo André-SP Brazil
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Mello GAB, Busó-Rogero C, Herrero E, Feliu JM. Glycerol electrooxidation on Pd modified Au surfaces in alkaline media: Effect of the deposition method. J Chem Phys 2019; 150:041703. [DOI: 10.1063/1.5048489] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Gisele A. B. Mello
- Instituto de Electroquímica, Universidad de Alicante, Ap. 99, E-03080 Alicante, Spain
- Curso de Licenciatura em Química, Instituto de Ciências da Educação, Universidade Federal do Oeste do Pará, Avenida Marechal Rondon, s/n, 68040-070 Santarém, PA, Brazil
| | - Carlos Busó-Rogero
- Instituto de Electroquímica, Universidad de Alicante, Ap. 99, E-03080 Alicante, Spain
| | - Enrique Herrero
- Instituto de Electroquímica, Universidad de Alicante, Ap. 99, E-03080 Alicante, Spain
| | - J. M. Feliu
- Instituto de Electroquímica, Universidad de Alicante, Ap. 99, E-03080 Alicante, Spain
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Platinum–cadmium electrocatalyst for ethylene glycol electrochemical reaction in perchloric acid electrolyte. J Solid State Electrochem 2018. [DOI: 10.1007/s10008-018-4023-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Martínez-Hincapié R, Arán-Ais RM, Feliu JM. Weakening the C C bond: On the behavior of glyoxylic acid on Pt(111) and its vicinal surfaces. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2016.04.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Fernández PS, Tereshchuk P, Angelucci CA, Gomes JF, Garcia AC, Martins CA, Camara GA, Martins ME, Da Silva JLF, Tremiliosi-Filho G. How do random superficial defects influence the electro-oxidation of glycerol on Pt(111) surfaces? Phys Chem Chem Phys 2016; 18:25582-25591. [PMID: 27711508 DOI: 10.1039/c6cp04768h] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The glycerol electrooxidation reaction (GEOR) has attracted huge interest in the last decade due to the very low price and availability of this polyol. In this work, we studied the GEOR on Pt(111) electrodes by introducing different densities of random defects. Our results showed that the generation of defects on Pt(111) slightly modified the GEOR onset potential, however it generates changes in the voltammetric oxidation charges and also in the relative production of CO2 to carbonyl containing compounds, C[double bond, length as m-dash]O. The voltammetric profiles in the forward scan show two oxidation peaks. FTIR data show that the first one is connected with the GlOH dissociative adsorption to form CO (and others intermediates) while the second one, at higher potentials, matches the onsets of the CO oxidation to CO2 and the C[double bond, length as m-dash]O production. FTIR also confirms that the lower activity of defected electrodes at lower potentials is connected to a higher CO poisoning. DFT calculations show that the presence of CO molecules on a Pt defected surface keeps water and GlOH molecules far from the surface and linked by H bonds. This paper is the last of a series of three works where we explore the GEOR on an important number of different Pt surfaces. These works show that it is difficult to oxidize GlOH at potentials lower than 0.6 V (under our experimental conditions) without suffering an important electrode poisoning (mainly by CO). Since the structure of nanoparticles might be mimicked by defected single crystals, these sets of reports provide a considerable amount of information concerning the influence of such surfaces towards GlOH reaction in acidic media. Therefore, if the well-known "nano"-effect does not produce substantial changes in the activity of Pt materials, they are not useful to be applied in a Direct Glycerol Fuel Cell (DGFC). On the other hand, it is very interesting that the density of electrode defects permits us to tune the relative production of CO2 to C[double bond, length as m-dash]O.
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Affiliation(s)
- Pablo S Fernández
- Chemistry Institute, State University of Campinas, PO Box 6154, 13083-970, Campinas SP, Brazil.
| | - Polina Tereshchuk
- São Carlos Institute of Chemistry, University of São Paulo, PO Box 780, 13560-970, São Carlos, SP, Brazil
| | - Camilo A Angelucci
- Center of Natural and Human Sciences, Federal University of ABC, Av. dos Estados, 5001, Santo André, Brazil
| | - Janaina F Gomes
- Chemical Engineering Department, Federal University of São Carlos, P.O. Box 676, 13565-905, São Carlos, SP, Brazil
| | - Amanda C Garcia
- São Carlos Institute of Chemistry, University of São Paulo, PO Box 780, 13560-970, São Carlos, SP, Brazil
| | - Cauê A Martins
- Faculty of Exact Sciences and Technology, Federal University of Grande Dourados, 79804-970, Dourados, MS, Brazil
| | - Giuseppe A Camara
- Institute of Chemistry, Universidade Federal de Mato Grosso do Sul, C.P. 549, 79070-900, Campo Grande, MS, Brazil
| | - María E Martins
- Physical Chemistry Research Institute (INIFTA), Exact Sciences Faculty, CCT La Plata-CONICET, C.P. 1900, La Plata, Argentina
| | - Juarez L F Da Silva
- São Carlos Institute of Chemistry, University of São Paulo, PO Box 780, 13560-970, São Carlos, SP, Brazil
| | - Germano Tremiliosi-Filho
- São Carlos Institute of Chemistry, University of São Paulo, PO Box 780, 13560-970, São Carlos, SP, Brazil
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