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Mondino TM, García G, Pastor E, Fungo F, Planes GA. Hydrogen evolution reaction at lead/carbon porous electrodes studied by a novel electrochemical mass spectrometry set-up. Electrochem commun 2022. [DOI: 10.1016/j.elecom.2022.107393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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2
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Neha N, Rafaïdeen T, Faverge T, Maillard F, Chatenet M, Coutanceau C. Revisited Mechanisms for Glucose Electrooxidation at Platinum and Gold Nanoparticles. Electrocatalysis (N Y) 2022. [DOI: 10.1007/s12678-022-00774-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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3
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Silva WO, Silva GC, Webster RF, Benedetti TM, Tilley RD, Ticianelli EA. Electrochemical Reduction of CO
2
on Nitrogen‐Doped Carbon Catalysts With and Without Iron. ChemElectroChem 2019. [DOI: 10.1002/celc.201901144] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Wanderson O. Silva
- Department of Physical Chemistry São Carlos Institute of Chemistry – USP Av. Trabalhador São-carlense, 400 São Carlos, SP Brazil
| | - Gabriel C. Silva
- Department of Physical Chemistry São Carlos Institute of Chemistry – USP Av. Trabalhador São-carlense, 400 São Carlos, SP Brazil
| | - Richard F. Webster
- Electron Microscope Unit Mark Wainwright Analytical Centre The University of New South Wales Sydney, NSW 2052 Australia
| | - Tania M. Benedetti
- School of Chemistry The University of New South Wales Sydney NSW 2052 Australia
| | - Richard D. Tilley
- Electron Microscope Unit Mark Wainwright Analytical Centre The University of New South Wales Sydney, NSW 2052 Australia
- School of Chemistry The University of New South Wales Sydney NSW 2052 Australia
| | - Edson A. Ticianelli
- Department of Physical Chemistry São Carlos Institute of Chemistry – USP Av. Trabalhador São-carlense, 400 São Carlos, SP Brazil
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Maillard F, O Silva W, Castanheira L, Dubau L, Lima FHB. Carbon Corrosion in Proton-Exchange Membrane Fuel Cells: Spectrometric Evidence for Pt-Catalysed Decarboxylation at Anode-Relevant Potentials. Chemphyschem 2019; 20:3106-3111. [PMID: 31237394 DOI: 10.1002/cphc.201900505] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2019] [Revised: 06/24/2019] [Indexed: 11/11/2022]
Abstract
The carbon oxidation reaction (COR) is a critical issue in proton-exchange membrane fuel cells (PEMFCs), as carbon in various forms is the most used electrocatalyst support material. The COR is thermodynamically possible above the C/CO2 standard potential, but its rate becomes significantly important only at high overpotential (e. g. PEMFC cathode potential). Herein, using on-line differential electrochemical mass spectrometry, we show that oxygen-containing carbon surface groups present on high-surface aera carbon, Vulcan XC72 or reinforced graphite are oxidized at PEMFC anode-relevant potential (E=0.1 V vs. the reversible hydrogen electrode, RHE), but not at E=0.4 V vs. RHE. We rationalized our findings by considering a Pt-catalysed decarboxylation mechanism in which Pt nanoparticles provide adsorbed hydrogen species to the oxygen-containing carbon surface groups, eventually leading to evolution of carbon dioxide and carbon monoxide. These results shed fundamental light on an unexpected degradation mechanism and facilitate the understanding of the long-term stability of PEMFC anode nanocatalysts.
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Affiliation(s)
- Frédéric Maillard
- Univ. Grenoble Alpes, Univ. Savoie Mont Blanc CNRS, Grenoble INP, LEPMI, 38000, Grenoble, France
| | - Wanderson O Silva
- Instituto de Química de São Carlos, Universidade de São Paulo CEP, 13560-970, CP 780 São Carlos, SP, Brazil
| | - Luis Castanheira
- Univ. Grenoble Alpes, Univ. Savoie Mont Blanc CNRS, Grenoble INP, LEPMI, 38000, Grenoble, France
| | - Laetitia Dubau
- Univ. Grenoble Alpes, Univ. Savoie Mont Blanc CNRS, Grenoble INP, LEPMI, 38000, Grenoble, France
| | - Fabio H B Lima
- Instituto de Química de São Carlos, Universidade de São Paulo CEP, 13560-970, CP 780 São Carlos, SP, Brazil
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Silva W, Queiroz A, Paganin V, Lima F. Faradaic efficiency of ethanol oxidation to CO2 at metallic nanoparticle/short-side-chain PFSA solid-state electrolyte interfaces investigated by on-line DEMS. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2018.07.035] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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6
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Gómez-Marín AM, Ticianelli EA. Analysis of the electrocatalytic activity of α-molybdenum carbide thin porous electrodes toward the hydrogen evolution reaction. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.10.101] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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7
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Pasqualeti AM, Olu PY, Chatenet M, Lima FHB. Borohydride Electrooxidation on Carbon-Supported Noble Metal Nanoparticles: Insights into Hydrogen and Hydroxyborane Formation. ACS Catal 2015. [DOI: 10.1021/acscatal.5b00107] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Anielli M. Pasqualeti
- Institute
of Chemistry of Sao Carlos - University of Sao Paulo, CEP 13560-970, CP 780 Sao Carlos, Sao Paulo, Brazil
| | - Pierre-Yves Olu
- Université Grenoble Alpes, LEPMI, F-38000 Grenoble, France
- CNRS, LEPMI, F-38000 Grenoble, France
| | - Marian Chatenet
- Université Grenoble Alpes, LEPMI, F-38000 Grenoble, France
- CNRS, LEPMI, F-38000 Grenoble, France
- French University Institute, 75005 Paris, France
| | - Fabio H. B. Lima
- Institute
of Chemistry of Sao Carlos - University of Sao Paulo, CEP 13560-970, CP 780 Sao Carlos, Sao Paulo, Brazil
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Oberacher H, Pitterl F, Erb R, Plattner S. Mass spectrometric methods for monitoring redox processes in electrochemical cells. MASS SPECTROMETRY REVIEWS 2015; 34:64-92. [PMID: 24338642 PMCID: PMC4286209 DOI: 10.1002/mas.21409] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2013] [Revised: 07/24/2013] [Accepted: 08/12/2013] [Indexed: 06/03/2023]
Abstract
Electrochemistry (EC) is a mature scientific discipline aimed to study the movement of electrons in an oxidation-reduction reaction. EC covers techniques that use a measurement of potential, charge, or current to determine the concentration or the chemical reactivity of analytes. The electrical signal is directly converted into chemical information. For in-depth characterization of complex electrochemical reactions involving the formation of diverse intermediates, products and byproducts, EC is usually combined with other analytical techniques, and particularly the hyphenation of EC with mass spectrometry (MS) has found broad applicability. The analysis of gases and volatile intermediates and products formed at electrode surfaces is enabled by differential electrochemical mass spectrometry (DEMS). In DEMS an electrochemical cell is sampled with a membrane interface for electron ionization (EI)-MS. The chemical space amenable to EC/MS (i.e., bioorganic molecules including proteins, peptides, nucleic acids, and drugs) was significantly increased by employing electrospray ionization (ESI)-MS. In the simplest setup, the EC of the ESI process is used to analytical advantage. A limitation of this approach is, however, its inability to precisely control the electrochemical potential at the emitter electrode. Thus, particularly for studying mechanistic aspects of electrochemical processes, the hyphenation of discrete electrochemical cells with ESI-MS was found to be more appropriate. The analytical power of EC/ESI-MS can further be increased by integrating liquid chromatography (LC) as an additional dimension of separation. Chromatographic separation was found to be particularly useful to reduce the complexity of the sample submitted either to the EC cell or to ESI-MS. Thus, both EC/LC/ESI-MS and LC/EC/ESI-MS are common.
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Affiliation(s)
- Herbert Oberacher
- Institute of Legal Medicine and Core Facility Metabolomics, Innsbruck Medical UniversityInnsbruck, Austria
| | - Florian Pitterl
- Institute of Legal Medicine and Core Facility Metabolomics, Innsbruck Medical UniversityInnsbruck, Austria
| | - Robert Erb
- Institute of Legal Medicine and Core Facility Metabolomics, Innsbruck Medical UniversityInnsbruck, Austria
| | - Sabine Plattner
- Institute of Legal Medicine and Core Facility Metabolomics, Innsbruck Medical UniversityInnsbruck, Austria
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Belén Molina Concha M, Chatenet M, Lima FH, Ticianelli EA. In situ Fourier transform infrared spectroscopy and on-line differential electrochemical mass spectrometry study of the NH3BH3 oxidation reaction on gold electrodes. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2012.11.027] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Cantane DA, Lima FHB. Electrocatalytic Activity of Pd, Pt, and Rh for the Electro-oxidation of Ethanol in Alkaline Electrolyte: An Online DEMS Study. Electrocatalysis (N Y) 2012. [DOI: 10.1007/s12678-012-0111-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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11
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Cantane D, Ambrosio W, Chatenet M, Lima F. Electro-oxidation of ethanol on Pt/C, Rh/C, and Pt/Rh/C-based electrocatalysts investigated by on-line DEMS. J Electroanal Chem (Lausanne) 2012. [DOI: 10.1016/j.jelechem.2012.05.024] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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12
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Lima FHB, Profeti D, Chatenet M, Riello D, Ticianelli EA, Gonzalez ER. Electro-oxidation of Ethanol on Rh/Pt and Ru/Rh/Pt Sub-monolayers Deposited on Au/C Nanoparticles. Electrocatalysis (N Y) 2010. [DOI: 10.1007/s12678-010-0014-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Lima F, Profeti D, Lizcano-Valbuena W, Ticianelli E, Gonzalez E. Carbon-dispersed Pt–Rh nanoparticles for ethanol electro-oxidation. Effect of the crystallite size and of temperature. J Electroanal Chem (Lausanne) 2008. [DOI: 10.1016/j.jelechem.2008.01.024] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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14
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High performance mesoporous Pt electrode for methanol electrooxidation. A DEMS study. Electrochem commun 2007. [DOI: 10.1016/j.elecom.2006.11.020] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Baltruschat H. Differential electrochemical mass spectrometry. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2004; 15:1693-1706. [PMID: 15589747 DOI: 10.1016/j.jasms.2004.09.011] [Citation(s) in RCA: 173] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2004] [Revised: 09/16/2004] [Accepted: 09/16/2004] [Indexed: 05/24/2023]
Abstract
Differential electrochemical mass spectrometry (DEMS) can be used not only to identify products or intermediates of continuous faradaic reactions, but also to characterize submonolayer amounts of adsorbates on polycrystalline and single crystal electrode surfaces by means of their desorption, because of its high sensitivity. One possibility to achieve this is to oxidize a carbonaceous species to CO(2), which is quantitatively detected in the mass spectrometer. Many adsorbates can also be desorbed at certain potentials as such, or as the hydrogenated product, allowing a more direct characterization of the adsorbate. In some cases, a nonreactive desorption can be induced by displacement with a second adsorbate, yielding additional information. Interfacing an electrochemical cell to a mass spectrometer via a porous Teflon membrane can be achieved with a variety of cells. These will be described together with their specific advantages and characteristics.
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Affiliation(s)
- Helmut Baltruschat
- Institute for Physical and Theoretical Chemistry, University of Bonn, Romerstrasse 164, D-53117 Bonn, Germany.
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Bergamaski K, Gomes JF, Goi BE, Nart FC. Effect of alcohol concentration and electrode composition on the ethanol electrochemical oxidation. ECLÉTICA QUÍMICA 2003. [DOI: 10.1590/s0100-46702003000200011] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The electrochemical oxidation on platinum and platinum rhodium bimetallic electrodes was studied by Differential Electrochemical Mass Spectrometry for several ethanol concentrations in solution. It is found that increasing the ethanol concentration the production of the partially oxidized products (acetaldehyde) increases as the concentration increases. On the other hand, addition of 25% at. of rhodium increases the full oxidation to CO2. Another interesting result observed is a correlation between the intensity of the dehydrogenations peak at 0.3 V vs. RHE and the CO2 yield for the different ethanol concentration studied.
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de Souza JPI, Queiroz SL, Bergamaski K, Gonzalez ER, Nart FC. Electro-Oxidation of Ethanol on Pt, Rh, and PtRh Electrodes. A Study Using DEMS and in-Situ FTIR Techniques. J Phys Chem B 2002. [DOI: 10.1021/jp014645c] [Citation(s) in RCA: 304] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- J. P. I. de Souza
- Instituto de Química de São Carlos, Universidade de São Paulo, C.P. 780, 13560-970 São Carlos (SP), Brazil
| | - S. L. Queiroz
- Instituto de Química de São Carlos, Universidade de São Paulo, C.P. 780, 13560-970 São Carlos (SP), Brazil
| | - K. Bergamaski
- Instituto de Química de São Carlos, Universidade de São Paulo, C.P. 780, 13560-970 São Carlos (SP), Brazil
| | - E. R. Gonzalez
- Instituto de Química de São Carlos, Universidade de São Paulo, C.P. 780, 13560-970 São Carlos (SP), Brazil
| | - F. C. Nart
- Instituto de Química de São Carlos, Universidade de São Paulo, C.P. 780, 13560-970 São Carlos (SP), Brazil
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Electrochemical surface reactions of intermediates formed in the oxidative ethanol adsorption on porous Pt and PtRu. J Electroanal Chem (Lausanne) 1999. [DOI: 10.1016/s0022-0728(99)00273-9] [Citation(s) in RCA: 71] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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20
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Fujiwara N, Friedrich K, Stimming U. Ethanol oxidation on PtRu electrodes studied by differential electrochemical mass spectrometry. J Electroanal Chem (Lausanne) 1999. [DOI: 10.1016/s0022-0728(99)00282-x] [Citation(s) in RCA: 215] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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21
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The redox behaviour of thermally pretreated, highly disrupted, states of platinum surfaces in aqueous media. Electrochim Acta 1999. [DOI: 10.1016/s0013-4686(99)00110-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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22
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Schmidt VM, Ianniello R, Pastor E, González S. Electrochemical Reactivity of Ethanol on Porous Pt and PtRu: Oxidation/Reduction Reactions in 1 M HClO4. ACTA ACUST UNITED AC 1996. [DOI: 10.1021/jp9617027] [Citation(s) in RCA: 111] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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23
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Anderson JL, Bowden EF, Pickup PG. Dynamic Electrochemistry: Methodology and Application. Anal Chem 1996. [DOI: 10.1021/a1960015y] [Citation(s) in RCA: 82] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- James L. Anderson
- Department of Chemistry, University of Georgia, Athens, Georgia 30602
| | - Edmond F. Bowden
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695
| | - Peter G. Pickup
- Department of Chemistry, Memorial University of Newfoundland, St. John's, Newfoundland, Canada A1B 3X7
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Pastor E, Castro C, Rodríguez J, González S. On-line mass spectrometric studies on the interaction between organic adlayers on platinum. Part 1. Consecutive adsorption of formic acid and propargyl alcohol. J Electroanal Chem (Lausanne) 1996. [DOI: 10.1016/0022-0728(95)04330-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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