摘要
以多壁碳纳米管(MWCNT)为载体,采用一步共还原法,将铑镍(RhNi)合金粒子成功负载在多壁碳纳米管表面。铑镍合金粒子粒径为2.5 nm且分散均匀。由于铑和镍元素间的协同效应,所制备的催化剂具有非常好的水合肼分解制氢催化性能。并且,相较于其他载体,多壁碳纳米管载体也对RhNi纳米粒子的催化性能起到促进作用,其催化水合肼分解制氢的转化效率值(TOF)达到358 molH2molcat-1min-1在323 K,而且具有优异的循环稳定性。
Bimetallic RhNi nanoparticles have been successfully supported on multiwall carbon nanotubes. The ultrafine RhNi nanoparficles with particle size of 2.5 nm are monodispersed on multiwall carbon nanotubes surface. The synergistic effect between Rh and Ni plays an important role in enhancement for hydrous hydrazine hydrolysis. In addition, the support effect could also efficiently improve the catalytic performance. Compared to the other support, the synthesized Rh6Ni4/MCNTs shows excellent catalytic performance with TOF of 358mol H2 molcat^-1min^-1 at 323 K.
作者
沈震雷
Shen Zhenlei(Lithium-ion Materials Research Institute,Huayou New Energy Technology（Quzhou）Co.,Ltd.,Quzhou 324000,China;New materials Institute,Zhejiang Huayou Cobalt Co.,Ltd.,Tongxiang 314500,China)
出处
《山东化工》
CAS
2018年第19期48-51,53,共5页
Shandong Chemical Industry
关键词
多壁碳纳米管
铑镍合金
水合肼
协同效应
multiwall carbon nanotubes
RhNi nanoparticles
hydrous hydrazine
synergistic effect
