A transition metal heterogeneous catalyst with ultra-high structural stability and preparation method thereof

Abstract

The present invention discloses a transition metal heterogeneous catalyst with ultrahigh structural stability and a preparation method thereof, wherein the transition metal oxide is partially converted into a corresponding anionic transition metal compound by precisely controlling the amount of a nitrogen-containing anion source and a transition metal oxide, and nitrogen-doped at the same time, thereby constructing a nitrogen-doped transition metal oxide / transition metal anion compound interface in the material to obtain the transition metal heterogeneous catalyst. The transition metal heterogeneous catalyst prepared by the present invention is affected by nitrogen doping, and has a weaker hydroxide adsorption capacity and a longer metal-oxygen bond than a traditional oxide / sulfide heterogeneous catalyst, so that it has a stronger resistance to hydroxide adsorption and bond length contraction during the hydroxyl oxide phase transition process, thereby being able to maintain the transition metal oxide / transition metal anion compound interface as an active site in the OER reaction, thereby having high conductivity and high OER catalytic activity.

Images