Porous Solid Electrolyte (PSE) Reactor for Electrosynthesis of Pure Liquid Chemicals, CEPLCPSER

A Porous Solid Electrolyte (PSE) Reactor represents the cutting edge of electrochemical synthesis. While traditional reactors use liquid electrolytes (like KOH or H2SO4) to transport ions, a PSE reactor uses a solid ion-conductor (like Nafion or a ceramic) sandwiched around a porous middle chamber to produce pure chemical products without any salt or solvent contamination. 

Traditional reactors often result in a "salty soup" where your desired product is mixed with the liquid electrolyte. A PSE reactor solves several industrial headaches: (1) No Downstream Separation: You don't need expensive distillation to remove salts; the product comes out pure. (2) Zero Salt Crossover: In CO2 reduction, liquid electrolytes often cause "carbonate scaling" which clogs the system. PSE reactors remain "dry" at the electrodes, preventing this. (3) High Concentration: By slowing the water sweep, you can achieve much higher weight-percentages of products like formic acid (>20%).

The PSE reactor has been widely used to produce high purity liquid products, such as hydrogen peroxide, formic acid, and ethylene glycol. 

References:

1. X. Zhang, et al., Electrochemical regeneration of high-purity CO2 from (bi)carbonates in a porous solid electrolyte reactor for efficient carbon capture, Nat. Energy, 2025, 10, 55–65. 

2. E. Zhao, et al. Optimization and scaling-up of porous solid electrolyte electrochemical reactors for hydrogen peroxide electrosynthesis, Nature Communications. 2025, 16, 3212.