Polymer electrolyte membrane electrolysis

Physics

Electrode

Current density

Membrane

Alkaline water electrolysis

Engineering

Faraday efficiency

Electrolysis

Physical chemistry

Copolymer

Composite material

Inorganic chemistry

Ionomer

Chemistry

Materials science

Quantum mechanics

Electrolyte

Chemical engineering

Electrolysis of water

Polymer

Biochemistry

Energy & Environmental Science

An approach to the industrial-scale conversion of CO2 through electrolysis is realized in this work. Such a device is fully based on alkaline polymer electrolytes, both as the membrane and the ionomer inside electrodes, and works only with pure water. Typical current density is 500 mA cm−2 @ 3V 60 °C, with the faradaic efficiency of CO production over 90%.

An alkaline polymer electrolyte CO2 electrolyzer operated with pure water