公开(公告)号：US20200002180A1

公开(公告)日：2020-01-02

申请号：US16448692

申请日：2019-06-21

Applicant: Korea Research Institute of Chemical Technology

Inventor： Dong Yeon Kim ,  Young Kook Kwon ,  Iljeong Heo ,  Beom Sik Kim

IPC: C01C1/02 ,  C25B1/00 ,  C25B11/04

Abstract: It is an object of the present invention to provide an electrochemical system for producing ammonia from nitrogen oxides which can perform the reaction at room temperature under normal pressure with high ammonia selectivity, and a preparation method thereof.To achieve the object above, the present invention provides an electrochemical system for producing ammonia from nitrogen oxides characteristically comprising a cathode electrode where the reduction reaction of a complex of nitrogen oxide and a metal complex compound occurs, an anode electrode, a reference electrode, an electrolyte including a metal complex compound, and a nitrogen oxide supply unit.The present invention also provides a method for producing ammonia from nitrogen oxides, which characteristically comprises the steps of introducing nitrogen oxide in the electrochemical system; forming a complex from the introduced nitrogen oxide and the metal complex compound included in the electrolyte; and performing an electrical reduction reaction of the formed complex. According to the present invention, ammonia can be produced from nitrogen oxides via electrochemical method under normal atmospheric pressure and at room temperature with a high selectivity.