“…[25][26][27][28] In electrochemistry, however, combinatorial schemes only recently became valuable tools for fabricating and screening libraries of functionalised conducting polymers, [29][30][31][32] engineered metalloproteins, 33,34 redox storage 35 or ion sensing 36 materials, and electrocatalysts for batteries, [37][38][39] fuel cells [40][41][42][43][44] or enzymebased amperometric biosensors. [45][46][47] Here, we present a study on the adaptation of an electrochemical robotic screening device 46,48,49 for automatically assessing the electrocatalytic properties of metalloporphyrin derivatives with respect to the anodic oxidation of NO. A collection of more than 80 metalloporphyrins was parallely synthesized under variation of the substitution pattern at the meso-position of the porphyrins and of the central metal ion.…”