journal article·2018-06

Understanding formic acid oxidation mechanism on platinum single crystal electrodes

Enrique Herrero, Juan M. Feliu

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Abstract

Recent results on the formic acid oxidation reaction on platinum electrodes, especially those obtained for platinum single crystal electrodes are reviewed. With all the available data, a detailed mechanism for both reaction paths of the mechanism is proposed. For the CO formation path, oxidation and reduction steps are involved sequentially. On the other hand, the active species is a monodentate adsorbed formate. This adsorption mode is favored in the presence of additional adsorbed species in the neighborhood. The proposed mechanism agrees with all the experimental results obtained for the reaction.
Source: openaire · Quality: candidate unverified · Source record ↗

Research context

OpenAlex topics: Electrocatalysts for Energy Conversion · CO2 Reduction Techniques and Catalysts · Catalytic Processes in Materials Science

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

References (34)

Show source-provided references
1. The oxidation of formic acid at noble metal electrodes Part III. Intermediates and mechanism on platinum electrodes10.1016/S0022-0728(73)80158-5 ↗
2. A comparative study of formic acid adsorption on a platinum electrode by both electrochemical and emirs techniques10.1016/S0022-0728(83)80230-7 ↗
3. The oxidation of small organic molecules: a survey of recent fuel cell related research10.1016/0022-0728(88)87028-1 ↗
4. Mechanisms of the oxidation of carbon monoxide and small organic molecules at metal electrodes
5. Formic acid oxidation on single crystal platinum electrodes. Comparison with polycrystalline platinum10.1016/S0022-0728(81)80311-7 ↗
6. Structural effects in electrocatalysis10.1038/296137a0 ↗
7. Reaction pathways of the anodic oxidation of formic acid on platinum evidenced by oxygen-18 labeling—a DEMS sudy10.1149/1.2114179 ↗
8. The mechanism of electrocatalytic oxidation of formic acid on Pt (100) and Pt (111) in sulphuric acid solution: an EMIRS study10.1016/0022-0728(88)80319-X ↗
9. Poison formation reaction from formic acid and methanol on Pt(111) electrodes modified by irreversibly adsorbed Bi and As10.1016/0022-0728(93)80197-P ↗
10. Poison formation reaction from formic acid on Pt(100) electrodes modified by irreversibly adsorbed bismuth and antimony10.1016/0022-0728(93)03032-K ↗
11. Formic acid self-poisoning on bismuth-modified stepped electrodes10.1016/S0022-0728(00)00389-2 ↗
12. Intrinsic activity and poisoning rate for HCOOH oxidation at Pt(100) and vicinal surfaces containing monoatomic (111) steps10.1002/cphc.200900261 ↗
13. Intrinsic activity and poisoning rate for HCOOH oxidation on platinum stepped surfaces10.1039/b925472b ↗
14. Formic acid oxidation on shape-controlled Pt nanoparticles studied by pulsed voltammetry10.1021/jp104755b ↗
15. Formic acid oxidation on platinum electrodes: a detailed mechanism supported by experiments and calculations on well-defined surfaces10.1039/C7TA07116G ↗
16. Formic acid decomposition on polycrystalline platinum and palladized platinum electrodes10.1021/jp992297x ↗
17. Adsorbed formate: the key intermediate in the oxidation of formic acid on platinum electrodes10.1039/c1cp22498k ↗
18. Effect of adatoms in the electrocatalysis of HCOOH oxidation. A theoretical model10.1021/la970535e ↗
19. Cyclic voltammetry, FTIRS, and DEMS study of the electrooxidation of carbon monoxide, formic acid, and methanol on cyanide-modified Pt(111) electrodes10.1021/la8041154 ↗
20. Importance of acid-base equilibrium in electrocatalytic oxidation of formic acid on platinum10.1021/ja403578s ↗
21. The effect of pH on the electrocatalytic oxidation of formic acid/formate on platinum: a mechanistic study by surface-enhanced infrared spectroscopy coupled with cyclic voltammetry10.1016/j.electacta.2014.02.040 ↗
22. Formic acid electrooxidation on noble-metal electrodes: role and mechanistic implications of pH, surface structure, and anion adsorption10.1002/celc.201400011 ↗
23. Further insights into the formic acid oxidation mechanism on platinum: pH and anion adsorption effects10.1016/j.electacta.2015.08.155 ↗
24. The mechanisms of HCOOH/HCOO– oxidation on Pt electrodes: implication from the pH effect and H/D kinetic isotope effect10.1016/j.elecom.2017.05.012 ↗
25. Theory of multiple proton-electron transfer reactions and its implications for electrocatalysis10.1039/c3sc50205h ↗
26. Volcano Activity relationships for proton-coupled electron transfer reactions in electrocatalysis10.1007/s11244-015-0489-3 ↗
27. Adsorption of formate and its role as intermediate in formic acid oxidation on platinum electrodes10.1002/cphc.201100257 ↗
28. Bridge-bonded formate: active intermediate or spectator species in formic acid oxidation on a Pt film electrode10.1021/la060928q ↗
29. On the mechanism of the direct pathway for formic acid oxidation at a Pt(111) electrode10.1039/c3cp44074e ↗
30. Formic acid oxidation at Pt/H2O interface from periodic DFT calculations integrated with a continuum solvation model10.1021/jp9059888 ↗
31. Oxidation mechanism of formic acid on the bismuth adatom-modified Pt(111) surface10.1021/ja505943h ↗
32. Understanding the effect of the adatoms in the formic acid oxidation mechanism on Pt(111) electrodes10.1021/cs501729j ↗
33. Electrooxidation of formic acid on gold: an ATR-SEIRAS study of the role of adsorbed formate10.1016/j.cattod.2012.04.022 ↗
34. Effects of the anion adsorption and pH on the formic acid oxidation reaction on Pt(111) electrodes10.1016/j.electacta.2014.06.057 ↗