Chemistry

Metallurgy

Materials science

Electrochemistry

Oxygen

Engineering

Biochemistry

Physics

Electrode

Reactive oxygen species

Nanotechnology

Organic chemistry

Catalysis

Bimetallic strip

Quantum mechanics

Cyanide

Plasma

Oxygen evolution

Metal

Atmospheric-pressure plasma

Inorganic chemistry

Chemical engineering

Nanoporous

Physical chemistry

Advanced Energy Materials

Targeted activation of highly ordered and distributed metal sites in nanoporous frameworks is a generic strategy to develop high‐performance catalysts. The key challenge is to achieve such activation without damaging the frameworks. Here it is demonstrated that atmospheric‐pressure low‐temperature plasma generated in air improve catalytic properties of an Fe/Co bimetallic cyanide framework through the specific “soft” incorporation of reactive oxygen species without affecting the framework structure. The bonding and oxidative states of the high‐density catalytic metal sites in the framework are modified while the nanoporous nature of the framework is retained, which leads to superior catalytic performance for the oxygen evolution reaction at high current densities close to the operation conditions of commercial alkaline electrolyzers.

Air Plasma Activation of Catalytic Sites in a Metal‐Cyanide Framework for Efficient Oxygen Evolution Reaction