Nanotechnology

Electrode

Organic chemistry

Nanostructure

Electrocatalyst

Transition metal

Nanocages

Oxygen evolution

Engineering

Catalysis

Physical chemistry

Nanoparticle

Chemistry

Metallurgy

Materials science

Chemical engineering

Cobalt

Electrochemistry

Oxygen

Biochemistry

Angewandte Chemie International Edition

Transition-metal sulfides (TMSs) have emerged as important candidates for oxygen evolution reaction (OER) electrocatalysts. Now a hybrid nanostructure has been decorated with CeOx nanoparticles on the surface of ZIF-67-derived hollow CoS through in situ generation. Proper control of the amount of CeOx on the surface of CoS can achieve precise tuning of Co2+ /Co3+ ratio, especially for the induced defects, further boosting the OER activity. Meanwhile, the formation of protective CeOx thin layer effectively inhibits the corrosion by losing cobalt ion species from the active surface into the solution. It is thus a rare example of a hybrid hetero-structural electrocatalyst with CeOx NPs to improve the performance of the hollow TMS nanocage.

MOF‐Derived Hollow CoS Decorated with CeO<sub><i>x</i></sub> Nanoparticles for Boosting Oxygen Evolution Reaction Electrocatalysis

MOF‐Derived Hollow CoS Decorated with CeOx Nanoparticles for Boosting Oxygen Evolution Reaction Electrocatalysis

MOF‐Derived Hollow CoS Decorated with CeO_x Nanoparticles for Boosting Oxygen Evolution Reaction Electrocatalysis