Electrochemical Redox Conversion of Formate to CO via Coupling Fe-Co Layered Double Hydroxides and Au Catalysts.
Chemistry
; 30(14): e202303383, 2024 Mar 07.
Article
in En
| MEDLINE
| ID: mdl-38164084
ABSTRACT
Formate has been considered an inactive molecule and thus cannot be further reduced under CO2 reduction conditions, which limits its widespread application as feedstock. Here we present an electrochemical redox conversion of formate to CO through the potential-dependent generation of carbon dioxide radical anions (CO2 â
- ) on Fe-Co layered double hydroxides (Fe-Co LDHs) and the subsequent reduction of CO2 â
- to CO on Au catalysts. We present an electrodeposition protocol for the synthesis of Fe-Co LDHs with precise composition control and find that Fe1 Co4 exhibits a promising potential window for CO2 â
- formation between 1.14 and 1.4â
V and an optimized potential at 1.24â
V at a neutral pH condition. We further determined the formation of CO2 â
- at 1.24â
V via electron paramagnetic resonance and CO2 at >1.4â
V through differential electrochemical mass spectrometry. This work provides a redox chemistry route for converting formate into CO through a coupled slit parallel-plate electrode system.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Chemistry
Journal subject:
QUIMICA
Year:
2024
Type:
Article
Affiliation country:
China