Quantum mechanics

Engineering

Materials science

Polymer electrolyte membrane electrolysis

Biochemistry

Inorganic chemistry

Chemical engineering

Faraday efficiency

Electrolysis of water

Ionomer

Physical chemistry

Polymer

Physics

Membrane

Copolymer

Alkaline water electrolysis

Composite material

Chemistry

Electrode

Current density

Electrolyte

Electrolysis

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