This special column is to host scientific contributions in electrocatalysis. It covers the range from fundamental to ap-plied research and aims to open a “window” into this field. As is well known, heterogeneous catalysis and electrocatalysis are related. Both use well-controlled sequences of elementary bond This special column is to host scientific contributions in electrocatalysis. It covers the range from fundamental to ap-plied research and aims to open a “window ” into this field. Both is use, heterogeneous catalysis and electrocatalysis are related. well-controlled sequences of elementary bond