CAJ | 학술논문

研究了鱼骨式碳纤维(CNFs)和管式碳纤维(CNTs)负载Ru催化剂的氨分解反应活性.结果表明,Ru/CNFs催化剂上氨分解活性高于Ru/CNTs催化剂.通过改变Ru负载量或载体表面的含氧基团来调节Ru的粒径.Ru的活性位随着Ru颗粒尺寸的增大而增加.CNFs上的含氧基团对Ru颗粒的氨分解活性影响很大.在相同粒径的Ru颗粒上,CNFs表面的含氧基团增加了Ru的活性.
연구료어골식탄섬유(CNFs)화관식탄섬유(CNTs)부재Ru최화제적안분해반응활성.결과표명,Ru/CNFs최화제상안분해활성고우Ru/CNTs최화제.통과개변Ru부재량혹재체표면적함양기단래조절Ru적립경.Ru적활성위수착Ru과립척촌적증대이증가.CNFs상적함양기단대Ru과립적안분해활성영향흔대.재상동립경적Ru과립상,CNFs표면적함양기단증가료Ru적활성.
Carbon nanofibers (CNFs) with fish-bone graphene alignment and carbon nanotubes (CNTs) were used to support ruthenium for ammonia decomposition. The Ru nanoparticles on the CNF supports are more active than those on CNT supports. The Ru particle size was adjusted by changing the Ru loading or by introducing oxygen containing groups onto the CNF surface. The site activity increases when the Ru crystal size increases. The oxygen groups on the CNFs have a remarkable effect on ammonia decomposition over the Ru nanoparticles.On identically sized Ru crystals, oxygen on the CNFs clearly enhances ammonia decomposition over the Ru/CNFs.