Formic Acid Oxidation On Metal Electrodes

Angel Cuesta

doi:10.1016/B978-0-12-409547-2.13318-9

Formic Acid Oxidation On Metal Electrodes

Angel Cuesta

Research output: Chapter in Book/Report/Conference proceeding › Chapter (peer-reviewed) › peer-review

7 Citations (Scopus)

Abstract

Understanding the mechanism of the formic acid oxidation reaction (FAOR) on metal electrodes is of both applied and fundamental relevance. The
FAOR is the simplest possible electrooxidation reaction involving an organic molecule. Furthermore, formic acid is a liquid, and it exhibits much less
membrane crossover with Nafion than methanol. Metals are the simplest and most usual electrocatalysts for this reaction. Despite the advantages
outlined above, direct formic acid fuel cells (DFAFCs) are far from being a widespread competitive alternative for energy conversion. Leaving apart
problems associated with the oxygen reduction reaction in the cathode, common to all fuel cells, DFAFCs-anode electrocatalysts suffer from low
efficiency and/or low durability. Focusing on the efficiency problem, this is mainly due to catalyst inactivation by chemisorbed carbon monoxide,
and to the fact that those metals with the highest activity for the FAOR are generally also the most prone to CO poisoning. Developing
electrocatalysts with high activity for the oxidation of formic acid to CO₂ and immune to CO poisoning requires a detailed understanding of the
reaction mechanism. However, despite the apparent simplicity of the reaction (oxidation of HCOOH to CO₂ only requires breaking one C-H bond
and one O-H bond, and transferring two electrons), the reaction mechanism is still barely understood.

Original language	English
Title of host publication	Encyclopedia of Interfacial Chemistry
Subtitle of host publication	Surface Science and Electrochemistry
Editors	Klaus Wandelt, Conrad Becker, Falko Netzer, Ueli Heiz, Roberto Otero, Markus Lackinger, Andrew Teplyakov, Kurt Kolasinski, Peter Broekmann, Soma Vesztergom, Juan Miguel Feliu Martinez, Victor Climent, Miquel B. Salmeron, Francesco Di Quarto, Pankaj Vadgama
Publisher	Elsevier
Pages	620-632
Number of pages	13
Edition	1
ISBN (Electronic)	9780128098943
ISBN (Print)	9780128097397
DOIs	https://doi.org/10.1016/B978-0-12-409547-2.13318-9
Publication status	Published - 20 Apr 2018

Keywords

adsorbed carbon monoxide
adsorbed formate
DFAFC
FAOR
formic acid
dehydration
dehydrogenation
electrooxidation
reaction kinetics
reaction mechanism

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10.1016/B978-0-12-409547-2.13318-9Licence: Unspecified

Cite this

Cuesta, A. (2018). Formic Acid Oxidation On Metal Electrodes. In K. Wandelt, C. Becker, F. Netzer, U. Heiz, R. Otero, M. Lackinger, A. Teplyakov, K. Kolasinski, P. Broekmann, S. Vesztergom, J. M. F. Martinez, V. Climent, M. B. Salmeron, F. Di Quarto, & P. Vadgama (Eds.), Encyclopedia of Interfacial Chemistry: Surface Science and Electrochemistry (1 ed., pp. 620-632). Article 13318 Elsevier. https://doi.org/10.1016/B978-0-12-409547-2.13318-9

Formic Acid Oxidation On Metal Electrodes. / Cuesta, Angel.
Encyclopedia of Interfacial Chemistry: Surface Science and Electrochemistry. ed. / Klaus Wandelt; Conrad Becker; Falko Netzer; Ueli Heiz; Roberto Otero; Markus Lackinger; Andrew Teplyakov; Kurt Kolasinski; Peter Broekmann; Soma Vesztergom; Juan Miguel Feliu Martinez; Victor Climent; Miquel B. Salmeron; Francesco Di Quarto; Pankaj Vadgama. 1. ed. Elsevier, 2018. p. 620-632 13318.

Research output: Chapter in Book/Report/Conference proceeding › Chapter (peer-reviewed) › peer-review

Cuesta, A 2018, Formic Acid Oxidation On Metal Electrodes. in K Wandelt, C Becker, F Netzer, U Heiz, R Otero, M Lackinger, A Teplyakov, K Kolasinski, P Broekmann, S Vesztergom, JMF Martinez, V Climent, MB Salmeron, F Di Quarto & P Vadgama (eds), Encyclopedia of Interfacial Chemistry: Surface Science and Electrochemistry. 1 edn, 13318, Elsevier, pp. 620-632. https://doi.org/10.1016/B978-0-12-409547-2.13318-9

Cuesta A. Formic Acid Oxidation On Metal Electrodes. In Wandelt K, Becker C, Netzer F, Heiz U, Otero R, Lackinger M, Teplyakov A, Kolasinski K, Broekmann P, Vesztergom S, Martinez JMF, Climent V, Salmeron MB, Di Quarto F, Vadgama P, editors, Encyclopedia of Interfacial Chemistry: Surface Science and Electrochemistry. 1 ed. Elsevier. 2018. p. 620-632. 13318 doi: 10.1016/B978-0-12-409547-2.13318-9

Cuesta, Angel. / Formic Acid Oxidation On Metal Electrodes. Encyclopedia of Interfacial Chemistry: Surface Science and Electrochemistry. editor / Klaus Wandelt ; Conrad Becker ; Falko Netzer ; Ueli Heiz ; Roberto Otero ; Markus Lackinger ; Andrew Teplyakov ; Kurt Kolasinski ; Peter Broekmann ; Soma Vesztergom ; Juan Miguel Feliu Martinez ; Victor Climent ; Miquel B. Salmeron ; Francesco Di Quarto ; Pankaj Vadgama. 1. ed. Elsevier, 2018. pp. 620-632

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title = "Formic Acid Oxidation On Metal Electrodes",

abstract = "Understanding the mechanism of the formic acid oxidation reaction (FAOR) on metal electrodes is of both applied and fundamental relevance. TheFAOR is the simplest possible electrooxidation reaction involving an organic molecule. Furthermore, formic acid is a liquid, and it exhibits much lessmembrane crossover with Nafion than methanol. Metals are the simplest and most usual electrocatalysts for this reaction. Despite the advantagesoutlined above, direct formic acid fuel cells (DFAFCs) are far from being a widespread competitive alternative for energy conversion. Leaving apartproblems associated with the oxygen reduction reaction in the cathode, common to all fuel cells, DFAFCs-anode electrocatalysts suffer from lowefficiency and/or low durability. Focusing on the efficiency problem, this is mainly due to catalyst inactivation by chemisorbed carbon monoxide,and to the fact that those metals with the highest activity for the FAOR are generally also the most prone to CO poisoning. Developingelectrocatalysts with high activity for the oxidation of formic acid to CO2 and immune to CO poisoning requires a detailed understanding of thereaction mechanism. However, despite the apparent simplicity of the reaction (oxidation of HCOOH to CO2 only requires breaking one C-H bondand one O-H bond, and transferring two electrons), the reaction mechanism is still barely understood.",

keywords = "adsorbed carbon monoxide, adsorbed formate, DFAFC, FAOR, formic acid, dehydration, dehydrogenation, electrooxidation, reaction kinetics, reaction mechanism",

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N2 - Understanding the mechanism of the formic acid oxidation reaction (FAOR) on metal electrodes is of both applied and fundamental relevance. TheFAOR is the simplest possible electrooxidation reaction involving an organic molecule. Furthermore, formic acid is a liquid, and it exhibits much lessmembrane crossover with Nafion than methanol. Metals are the simplest and most usual electrocatalysts for this reaction. Despite the advantagesoutlined above, direct formic acid fuel cells (DFAFCs) are far from being a widespread competitive alternative for energy conversion. Leaving apartproblems associated with the oxygen reduction reaction in the cathode, common to all fuel cells, DFAFCs-anode electrocatalysts suffer from lowefficiency and/or low durability. Focusing on the efficiency problem, this is mainly due to catalyst inactivation by chemisorbed carbon monoxide,and to the fact that those metals with the highest activity for the FAOR are generally also the most prone to CO poisoning. Developingelectrocatalysts with high activity for the oxidation of formic acid to CO2 and immune to CO poisoning requires a detailed understanding of thereaction mechanism. However, despite the apparent simplicity of the reaction (oxidation of HCOOH to CO2 only requires breaking one C-H bondand one O-H bond, and transferring two electrons), the reaction mechanism is still barely understood.

AB - Understanding the mechanism of the formic acid oxidation reaction (FAOR) on metal electrodes is of both applied and fundamental relevance. TheFAOR is the simplest possible electrooxidation reaction involving an organic molecule. Furthermore, formic acid is a liquid, and it exhibits much lessmembrane crossover with Nafion than methanol. Metals are the simplest and most usual electrocatalysts for this reaction. Despite the advantagesoutlined above, direct formic acid fuel cells (DFAFCs) are far from being a widespread competitive alternative for energy conversion. Leaving apartproblems associated with the oxygen reduction reaction in the cathode, common to all fuel cells, DFAFCs-anode electrocatalysts suffer from lowefficiency and/or low durability. Focusing on the efficiency problem, this is mainly due to catalyst inactivation by chemisorbed carbon monoxide,and to the fact that those metals with the highest activity for the FAOR are generally also the most prone to CO poisoning. Developingelectrocatalysts with high activity for the oxidation of formic acid to CO2 and immune to CO poisoning requires a detailed understanding of thereaction mechanism. However, despite the apparent simplicity of the reaction (oxidation of HCOOH to CO2 only requires breaking one C-H bondand one O-H bond, and transferring two electrons), the reaction mechanism is still barely understood.

KW - adsorbed carbon monoxide

KW - adsorbed formate

KW - DFAFC

KW - FAOR

KW - formic acid

KW - dehydration

KW - dehydrogenation

KW - electrooxidation

KW - reaction kinetics

KW - reaction mechanism

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A2 - Netzer, Falko

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A2 - Kolasinski, Kurt

A2 - Broekmann, Peter

A2 - Vesztergom, Soma

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A2 - Di Quarto, Francesco

A2 - Vadgama, Pankaj

PB - Elsevier

ER -

Formic Acid Oxidation On Metal Electrodes

Abstract

Keywords

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