公开(公告)号：US20240228309A1

公开(公告)日：2024-07-11

申请号：US18454824

申请日：2023-08-24

Applicant: ZHEJIANG UNIVERSITY

Inventor： Chuande WU ,  Jijie YE

IPC: C01C1/04 ,  B01J21/08 ,  B01J23/745 ,  B01J23/78 ,  B01J23/83 ,  B01J23/86 ,  B01J35/10 ,  B01J37/02 ,  B01J37/03 ,  B01J37/08

CPC classification number: C01C1/0411 ,  B01J21/08 ,  B01J23/745 ,  B01J23/78 ,  B01J23/83 ,  B01J23/862 ,  B01J35/1014 ,  B01J35/1019 ,  B01J35/1023 ,  B01J35/1057 ,  B01J35/1061 ,  B01J37/0236 ,  B01J37/036 ,  B01J37/086

Abstract: The present disclosure discloses a porous ammonia synthesis catalyst, its preparation method and use, which are suitable for catalyzing ammonia synthesis reaction by using nitrogen and hydrogen as raw materials. The porous ammonia synthesis catalyst is a novel ammonia synthesis catalyst material prepared by taking metal coordination compound as template, uniformly dispersing the metal coordination compound in silica gel through a sol-gel method, then carrying out hydrothermal aging, and finally controlling calcination conditions. Compared with traditional synthetic ammonia catalysts, the porous ammonia synthesis catalyst has uniform pore distribution, easily regulated pore size, large specific surface area, easily regulated aggregation degree of metal active centers, particle size, distribution, structure and composition, high ammonia synthesis catalytic efficiency, ammonia synthesis catalysis under mild reaction conditions, high stability, low catalyst preparation cost, which can completely replace existing ammonia synthesis industrial catalysts.