- 作者: 胡長員,廖小寧,里鳳儀,張榮斌,張榮發,劉庭芝
- 作者服務機構: Jiangxi Key Laboratory of Surface Engineering, Jiangxi Science and Techology Normal University, Nanchang, 330013, P. R. China ,Department of Chemistry, Nanchang University, Nanchang 330047, P. R. China
- 中文摘要: Ni-B and Ni-B/CNTs amorphous alloy catalysts were prepared by chemical reduction and impregnation-chemical reduction methods, respectively, and characterized by TEM, ICP, XPS, XRD, BET and CO chemisorption techniques. Their catalytic activities were evaluated in acetylene selective hydrogenation reaction. Based on characterizations, the effects of carbon nanotubes on Ni-B amorphous alloy were attributed to both its structure effect, dispersing Ni-B particles, leading to bigger surface area of active nickel and enhancing the thermal stability, and the electronic effect, resulting in electron-rich nickel centers. Therefore, the superior thermal stability and acetylene selective hydrogenation activities of Ni-B/CNTs to Ni-B amorphous catalyst were obtained in the present study.
- 英文摘要: --
- 中文關鍵字: CNTs; Ni-B amorphous alloy catalyst; Acetylene selective hydrogenation; Thermal stability.
- 英文關鍵字: --