Integrated Electrochemical Flow Cell for CO2 Capture and Conversion, CCCCIEFC

An Integrated Electrochemical Flow Cell for CO2 Capture and Conversion—often referred to as Reactive Capture and Conversion (RCC)—is a transformative technology that merges two traditionally separate industrial processes into a single unit. The Integrated Flow Cell combines these by feeding the CO2-rich capture medium (carbamates or bicarbonates) directly into the cathode of an electrochemical cell.

In an integrated flow cell, the chemical species being reduced are not gaseous CO2 molecules, but rather the captured intermediates: (1) Amine-Mediated RCC: CO2 reacts with amines to form carbamates (R-}NH-COO-). In the flow cell, these carbamates are electrochemically reduced at the catalyst surface. (2) Carbonate-Mediated RCC: Flue gas is captured in alkaline solutions (KOH/NaOH) to form bicarbonates (HCO3^-). The flow cell uses a pH-swing or direct reduction to convert these ions into products like Formate (HCOO-) or CO.

Part Number	CCCCIEFC (CCCCIEFC)
General Cell Component Features	Plate: All made of PEEK (PTFE is also available upon request) Sealing Gasket/Frame: Silicone Tubing Connection Port: M5-3.8 (suitable for I.D. 4mm soft tubing).
Electrochemical CO2 Capture System	Anode: Troy Paper (not included) Cathode: 3D Copper Mesh (not included, refer to CBACCWCMR) Anion-Exchange Membrane (AEM): not included, refer to membrane category. Organic Electrolyte:  1.25 M KOH saturated solution of ethylene glycol (EG) and choline hydroxide (ChOH) with EG: ChOH ratio of 1 : 0.05 (V/V) acting as the organic CO2-binding organic liquid. Aqueous Electrolyte: 25% 0.1 M KHCO3 and 75% 1 M KCl (V/V%) electrolyte pre-equilibrated with CO2 at a pH of 7.4.
Electrochemical CO2 Conversion System	Working Electrode: Cu-clad Al mesh Counter Electrode: Pt wire or plate or mesh  CFERCEPt Reference Electrode: Ag/AgCl (CFERRE) AEM: not included, refer to membrane category. The saturated CO2 electrolyte is the same with above aqueous solution.
Note	The cell components should be thoroughly cleaned and dried after use. Please don't use alcohol to clean the acrylic plates.

References:

1. A. Prajapati, et al., Fully-integrated electrochemical system that captures CO2 from flue gas to produce value-added chemicals at ambient conditions, Energy Environ. Sci., 2022,15, 5105-5117. 

2. Q. Xia, et al. Integration of CO2 Capture and Electrochemical Conversion, ACS Energy Lett. 2023, 8, 6, 2840–2857.