High-performance electrocatalytic nitrogen oxidation of two-dimensional MOF based on a rod-manganese motifs

However, it still faces challenges including inefficient N₂ absorption/activation and oxygen evolution competition, sluggish kinetics, low Faradaic efficiency, and limited nitrate yields. In this work, a novel two-dimensional (2D) layered MOF Mn-BCPPy (H2BCPPy=3,5-di(4'-carboxyphenyl) pyridine) has been successfully synthesized.

The framework is composed of a rod-manganese motifs and possesses abundant active sites including open metal sites (OMSs) and Lewis base sites (LBSs). The Mn-BCPPy is the first MOF catalyst applied in electrocatalytic NOR which exhibited relatively high activity with a NO3- yield of 99.75 μg·h-1·mgcat-1 and a Faraday efficiency (FE) of 32.09%. Furthermore, it can be used as fluorescent sensor to selectively and sensitively detect nitrofuran antibiotics (NFs).