典型文献
Highly efficient subnanometer Ru-based catalyst for ammonia synthesis via an associative mechanism
文献摘要：
The industrial manufacture of ammonia(NH3)using Fe-based catalyst works under rigorous conditions.For the goal of carbon-neutrality,it is highly desired to develop advanced catalyst for NH3 synthesis at mild conditions to reduce energy consumption and CO2 emissions.However,the main challenge of NH3 synthesis at mild conditions lies in the dissociation of steady N≡N triple bond.In this work,we report the design of subnanometer Ru clusters(0.8 nm)anchored on the hollow N-doped carbon spheres catalyst(Ru-SNCs),which effectively promotes the NH3 synthesis at mild conditions via an associative route.The NH3 synthesis rate over Ru-SNCs(0.49％(mass)Ru)reaches up to 11.7 mmol NH3(g cat)-1·h-1 at 400℃and 3 MPa,which is superior to that of 8.3 mmol NH3.(g cat)-1·h-1 over Ru nanoparticle catalyst(1.20％(mass)Ru).Various characterizations show that the N2H4 species are the main intermediates for NH3 synthesis on Ru-SNCs catalyst.It demonstrates that Ru-SNCs catalyst can follow an associative route for N2 activation,which circumvents the direct dissociation of N2 and results in highly efficient NH3 syn-thesis at mild conditions.
文献关键词：
中图分类号：
作者姓名：
Yanliang Zhou;Qianjin Sai;Zhenni Tan;Congying Wang;Xiuyun Wang;Bingyu Lin;Jun Ni;Jianxin Lin;Lilong Jiang
作者机构：
National Engineering Research Center of Chemical Fertilizer Catalyst,Fuzhou University,Fuzhou 350002,China
文献出处：
引用格式：
[1]Yanliang Zhou;Qianjin Sai;Zhenni Tan;Congying Wang;Xiuyun Wang;Bingyu Lin;Jun Ni;Jianxin Lin;Lilong Jiang-.Highly efficient subnanometer Ru-based catalyst for ammonia synthesis via an associative mechanism)[J].中国化学工程学报（英文版）,2022(03):177-184
A类：
subnanometer,SNCs
B类：
Highly,efficient,Ru,catalyst,ammonia,synthesis,via,associative,mechanism,industrial,manufacture,NH3,using,works,under,rigorous,conditions,For,goal,carbon,neutrality,highly,desired,develop,advanced,mild,reduce,energy,consumption,emissions,However,main,challenge,lies,dissociation,steady,triple,bond,In,this,report,design,clusters,anchored,hollow,doped,spheres,which,effectively,promotes,route,over,mass,reaches,superior,that,nanoparticle,Various,characterizations,show,N2H4,species,are,intermediates,It,demonstrates,can,follow,activation,circumvents,direct,results
AB值：
0.428473
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