journal article·2025-02Open access

Recent progress in mechanistic insights into cation effects on electrochemical CO2 reduction reactions

Xueping Qin, Renata Sechi, Heine Anton Hansen

Abstract

The impact of cations in the local reaction environment has garnered attention as a crucial factor in tailoring the selectivity of CO 2 reduction, although the mechanism remains under debate. Understanding these cation effects through first-principles computations can facilitate the design of efficient reaction networks and gas diffusion layers in electrolyzers. In this minireview, the latest insights into cation effects on CO 2 reduction reactions are presented, covering aspects such as tuning the interfacial electric field, coordinating reaction intermediates, altering the interfacial water structure, and modulating local CO 2 concentration and pH. Future research directions in this area are also discussed.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: CO2 Reduction Techniques and Catalysts · Electrochemical Analysis and Applications · Ionic liquids properties and applications

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

References (56)

Show source-provided references
1. Kibria · 2019
2. Pan · 2020
3. Understanding cation trends for hydrogen evolution on platinum and gold electrodes in alkaline media10.1021/acscatal.1c04268 ↗
4. The role of cation acidity on the competition between hydrogen evolution and CO2Reduction on gold electrodes10.1021/jacs.1c10171 ↗
5. Hydrogen bonding steers the product selectivity of electrocatalytic CO reduction10.1073/pnas.1900761116 ↗
6. Product selectivity affected by cationic species in electrochemical reduction of CO2 and CO at a Cu electrode10.1246/bcsj.64.123 ↗
7. The solvation-induced onsager reaction field rather than the double-layer field controls CO2Reduction on gold10.1021/jacsau.1c00512 ↗
8. Understanding cation effects in electrochemical CO2 reduction10.1039/C9EE01341E ↗
9. Modulating electric field distribution by alkali cations for CO2 electroreduction in strongly acidic medium10.1038/s41929-022-00761-y ↗
10. Cation effect on interfacial CO2 concentration in the electrochemical CO2 reduction reaction10.1021/acscatal.0c03553 ↗
11. Xu · 2023
12. Ab initio simulations of water/metal interfaces
13. Comparative study of dehydrogenation of methanol at Pt(111)/water and Pt(111)/vacuum interfaces10.1016/S0009-2614(03)01144-8 ↗
14. First-principles molecular dynamics simulation of biased electrode/solution interface10.1016/j.susc.2007.04.208 ↗
15. Properties of metal-water interfaces studied from first principles10.1088/1367-2630/11/12/125003 ↗
16. A unifying mechanism for cation effect modulating C1 and C2 productions from CO2 electroreduction10.1038/s41467-022-33199-8 ↗
17. Determining intrinsic Stark tuning rates of adsorbed CO on copper surfaces10.1039/D1CY01090E ↗
18. Electric field effects in electrochemical CO2 reduction10.1021/acscatal.6b02299 ↗
19. Promoter effects of alkali metal cations on the electrochemical reduction of carbon dioxide10.1021/jacs.7b06765 ↗
20. Malkani
21. Absence of CO2 electroreduction on copper, gold and silver electrodes without metal cations in solution10.1038/s41929-021-00655-5 ↗
22. CO2 activation at Au(110)-water interfaces: an ab initio molecular dynamics study
23. Cation-coordinated inner-sphere CO2 electroreduction at Au-water interfaces10.1021/jacs.2c11643 ↗
24. Modulating activity and selectivity of CO2 electroreductions at Au-water interfaces via engineering local cation condition10.1021/acscatal.4c00639 ↗
25. Cation-induced changes in the inner- and outer-sphere mechanisms of electrocatalytic CO2 reduction10.1038/s41467-023-43300-4 ↗
26. Molecular understanding of the critical role of alkali metal cations in initiating CO2 electroreduction on Cu(100) surface
27. Cation-induced interfacial hydrophobic microenvironment promotes the C-C coupling in electrochemical CO2 reduction10.1021/jacs.3c13602 ↗
28. Quantitative understanding of cation effects on the electrochemical reduction of CO2 and H+ in acidic solution10.1021/acscatal.2c04875 ↗
29. CO2 electroreduction to multicarbon products in strongly acidic electrolyte via synergistically modulating the local microenvironment10.1038/s41467-022-35415-x ↗
30. Probing electrolyte effects on cation-enhanced CO2 reduction on copper in acidic media
31. CO2-to-methanol electroconversion on a molecular cobalt catalyst facilitated by acidic cations10.1038/s41929-024-01197-2 ↗
32. Anomalously low dielectric constant of confined water10.1126/science.aat4191 ↗
33. Dielectric properties of aqueous ionic solutions. Parts I and II
34. Molecular origin of negative component of Helmholtz capacitance at electrified Pt(111)/water interface10.1126/sciadv.abb1219 ↗
35. In situ probing electrified interfacial water structures at atomically flat surfaces10.1038/s41563-019-0356-x ↗
36. Deciphering the capacitance of the Pt(111)/water interface: a micro- to mesoscopic investigation by AIMD and implicit solvation10.1021/acselectrochem.4c00062 ↗
37. Formation of hydrocarbons in the electrochemical reduction of carbon dioxide at a copper electrode in aqueous solution10.1039/f19898502309 ↗
38. Electrochemical reduction of CO at a copper electrode10.1021/jp970284i ↗
39. Controlling the selectivity of CO2 electroreduction on copper: the effect of the electrolyte concentration and the importance of the local pH10.1016/j.cattod.2015.06.009 ↗
40. Structure sensitivity of the electrochemical reduction of carbon monoxide on copper single crystals10.1021/cs4002404 ↗
41. The influence of pH on the reduction of CO and CO2 to hydrocarbons on copper electrodes10.1016/j.jelechem.2013.08.033 ↗
42. The electrochemical characterization of copper single-crystal electrodes in alkaline media10.1016/j.jelechem.2013.03.018 ↗
43. Two pathways for the formation of ethylene in CO reduction on single-crystal copper electrodes10.1021/ja302668n ↗
44. Reaction mechanisms for the electrochemical reduction of CO2 to CO and formate on the Cu(100) surface at 298 K from quantum mechanics free energy calculations with explicit water10.1021/jacs.6b08534 ↗
45. Full atomistic reaction mechanism with kinetics for CO reduction on Cu(100) from ab initio molecular dynamics free-energy calculations at 298 K10.1073/pnas.1612106114 ↗
46. Mechanism of CO2 reduction at copper surfaces: pathways to C2 products10.1021/acscatal.7b03477 ↗
47. Hydrolysis of electrolyte cations enhances the electrochemical reduction of CO2 over Ag and Cu10.1021/jacs.6b07612 ↗
48. Spectroscopic evidence of size-dependent buffering of interfacial pH by cation hydrolysis during CO2 electroreduction10.1021/acsami.7b07351 ↗
49. Direct evidence of local pH change and the role of alkali cation during CO 2 electroreduction in aqueous media10.1002/ange.201912637 ↗
50. Cation effect on interfacial CO2 concentration in the electrochemical CO2 reduction reaction10.1021/acscatal.0c03553 ↗
51. An implicit electrolyte model for plane wave density functional theory exhibiting nonlinear response and a nonlocal cavity definition
52. Dielectric properties of nanoconfined water from ab initio thermopotentiostat molecular dynamics10.1021/acs.jctc.2c00959 ↗
53. The role of machine learning in carbon neutrality: catalyst property prediction, design, and synthesis for carbon dioxide reduction10.1016/j.esci.2023.100136 ↗
54. Data-driven discovery of electrocatalysts for CO2 reduction using active motifs-based machine learning10.1038/s41467-023-43118-0 ↗
55. Wang · 2024
56. Neural network potentials for accelerated metadynamics of oxygen reduction kinetics at Au-water interfaces10.1039/D2SC06696C ↗