Solid state electrolyte electrolytic cell for formic acid electrolysis

1、 Why choose solid electrolytes for synthesizing formic acid?

Formic acid is a high-value chemical raw material and potential hydrogen energy carrier. In CO2RR, the production of formic acid using liquid electrolytes (especially under alkaline conditions) faces severe challenges:

1. Difficulty in product separationThe generated formic acid (or formate salt) is mixed with the electrolyte, requiring a high-energy downstream separation step.

2. Carbon loss issueIn alkaline environments, CO2 reacts with OH ⁻ to form carbonates, resulting in the ineffective consumption of a large amount of reactants (up to 80%) rather than the generation of the target product.

3. Electrolyte cross contaminationIon exchange in liquid electrolytic cellsDifficult membraneeffectivepreventElectrolyte interconnection affects purity and stability.

Science fermentation ®Solid state electrolyte electrolytic cell for formic acid electrolysisAdvantages:

• Direct production of pure formic acidThe reaction generates formic acid molecules, not formate salts, resulting in a higher concentration of formic acid solution, greatly simplifying the subsequent separation and purification process.

• Nearly 100% carbon atom economyAvoiding the formation of carbonates from the source, maximizing the conversion of CO2 gas into the target product, significantly improving the utilization rate of reactants.

• Zero electrolyte crossoverSolid state electrolyteforaloneThe ion conductor,can be very goodEliminating the risk of mixing cathode and anode fluids, the system operates more stably and has a longer lifespan.

IICore advantages and characteristics

1. High selectivity and efficiency

• Specially optimized flow field, gas diffusion layer, and interface design for formic acid synthesis pathway, promoting CO2 mass transfer and intermediate adsorption, combined with high-performance catalysts, can achieve>90% Faraday efficiency (FE).

2. Unique solid electrolyte system

• Solid state electrolyte electrolytic cell for formic acid electrolysisadoptProton Exchange Membrane (PEM)orAnion exchange membrane (AEM)As a solid electrolyte core, it supports reactions in acidic or alkaline environments, and users can flexibly choose according to the catalyst system.

3. Integrated product collection system

• Directly connect the cathode chamber outletLiquid product condensation collection deviceIt can collect and quantify the generated formic acid aqueous solution in real-time, facilitating offline analysis (such as HPLC, NMR) and yield calculation.

4. Accurate temperature and pressure control

• Integrated heating systemWith high-precision temperature sensors, ensure uniform and stable temperature at the reaction interface.

• Pressure resistant chamber design (capable of withstanding pressure>0.6MPa), supportingPressurized reactionResearch can help improve CO2 solubility, reaction rate, and formic acid concentration.

5. Comprehensive data monitoring interface

• Standard interface supports connectionOnline Gas Chromatography (GC)Analyze gas-phase products (such as H ₂ CO）， connectionMicroliter liquid phase pumpAccurately control the anode side water supply and reserveReference electrode interfaceUsed for precise potential control.

6. Industrial grade design and safety standards

• All metal (gold-plated or titanium) corrosion-resistant chamber, multi bolt uniform fastening design, ensuring long-term operation in high temperature, high pressure, and strong acidic environmentsSealing, durability, and safety.