期刊
APPLIED CATALYSIS A-GENERAL
卷 469, 期 -, 页码 434-441出版社
ELSEVIER
DOI: 10.1016/j.apcata.2013.09.047
关键词
Ni2P/Al2O3; Catalyst; Cyclohexane; Dehydrogenation
资金
- Fundamental Research Funds for the Central Universities [11CX06037A]
- Major State Basic Research Development Program of China [2010CB226905]
- National Natural Science Foundation of China [21176258, U1162203]
- Specialized Research Fund for the Doctoral Program of Higher Education [20110133110002]
The Ni2P/gamma-Al2O3 and Ni/Al2O3 catalysts were prepared, characterized, and evaluated for dehydrogenation of cyclohexane. The Ni2P/Al2O3 catalyst exhibited superior activity, selectivity and stability to those of the Ni/Al2O3 catalyst. Characterization results indicate that the small positive charge of Ni and the ensemble effect of P in Ni2P can inhibit sintering of Ni2P and promote reactivity of Ni2P in dehydrogenation of cyclohexane. Moreover, the in situ Fourier transform infrared spectra further reveal that the P-covered Ni(2) sites (Ni3P_P sites) of Ni2P(0 0 0 1) are responsible for dehydrogenation of cyclohexane. Meanwhile, the hydrogen temperature-programmed desorption experiments indicate that the Ni2P/Al2O3 catalyst contains a large amount of the Ni(2) sites. (C) 2013 Published by Elsevier B.V.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据