摘要
金属氧化物被广泛应用于催化剂的载体,Co_(3)O_(4)作为一种金属氧化物具有弱磁性和氧化还原等特性,可被当作载体制备出高效同时高稳定性的催化剂。采用浸渍-还原法,通过改变Rh和Ni的物质的量之比制得了一系列Rh基及过渡金属Ni基负载在Co_(3)O_(4)载体上的催化剂,并对这些样品进行表征及氨硼烷(AB)水解产氢的测试。一系列表征结果证明RhNi合金已成功负载到Co_(3)O_(4)载体表面。Rh_(1.5)Ni_(0.5)/Co_(3)O_(4)表现出最优异的氨硼烷水解产氢性能,转换频率(TOF)高达1 178.85 min^(-1),相应的活化能(E_a)为66.65 kJ/mol。
Metal oxides are widely used as catalyst carriers,Co_(3)O_(4) as a metal oxide with weak magnetic and redox properties,which can be used as a carrier to prepare efficient and stable catalysts.The impregnation-reduction method was used to prepare a series of Rh-based and Ni-based catalysts supported on Co_(3)O_(4) by changing the ratio of the amount of Rh and Ni,and these samples were characterized and tested for hydrogen production from hydrolysis of ammonia borane(AB).The results proved that RhNi alloy had been successfully loaded onto the surface of Co_(3)O_(4) carrier.Rh1.5Ni0.5/Co_(3)O_(4) Exhibited the most excellent performance for hydrolysis of AB to produce hydrogen with the conversion frequency(TOF)as high as 1178.85 min^(-1) and the corresponding activation energy(Ea)is 66.65 kJ/mol.
作者
张子豪
刘林昌
郭亚君
朱红林
ZHANG Zi-hao;LIU Lin-chang;GUO Ya-jun;ZHU Hong-lin(Institute of Chemical Synthesis and Green Applications,College of Materials Science and Chemical Engineering,Ningho University,Ningho 315211,China)
出处
《化学试剂》
CAS
北大核心
2021年第8期1025-1031,共7页
Chemical Reagents
基金
宁波大学王宽诚幸福基金项目。
