Co‐Ni/MOF‐74 catalyst packed‐bed DBD plasma for ammonia synthesis

Abstract

Abstract Nonthermal plasma (NTP) provides a potential and sustainable route for the synthesis of ammonia. In this work, a Co–Ni/MOF‐74 catalyst was developed to synthesize ammonia from N 2 and H 2 in a dielectric barrier discharge (DBD) plasma at low temperature and atmospheric pressure. Co–Ni/MOF‐74 showed the highest ammonia synthesis rate up to 2608.70 μmol g −1 h −1 at 200°C, with V(N 2 ):V(H 2 ) ratio of 1:1 and specific energy input of 33.27 kJ L −1 . The catalytic activity was increased by 19.57% for Co–Ni/MCM‐41 and 375% for Co‐Ni/Al 2 O 3 , respectively. It was observed that the average electric field (E) and power efficiency were enhanced while adding Co–Ni/MOF‐74 to the reaction system.