Interaction between Cs and Ni2P/SiO2 for enhancing isobutane dehydrogenation in the presence of hydrogen
Interaction between Cs and Ni2P/SiO2 for enhancing isobutane dehydrogenation in the presence of hydrogen
复制标题
Cs 和 Ni2P/SiO2 之间的相互作用促进氢气存在下异丁烷脱氢
DOI：
10.1007/s11144-014-0738-7
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发表时间：
2014-07
期刊：
影响因子：
--
通讯作者：
Lv, Rong
中科院分区：
文献类型：
--
作者：
Xu, Yanli;Wang, Xitao;Lv, Rong
A series of 10 wt% Ni2P/SiO2 catalysts with cesium loading from 0 to 7.5 wt% were prepared by means of temperature-programmed reduction, and the effects of the cesium addition on the catalytic properties of the Ni2P/SiO2 catalyst for isobutane dehydrogenation have been investigated by reaction tests and some physicochemical characterizations such as TEM, XRD, H2-TPR, XPS, H2-TPD, NH3-TPD. It was found that cesium exists as CsOH on the catalyst surface, which partly covers the Ni2P surface or boundaries between Ni2P and SiO2 to decrease the acid strength and acid site number. XPS analysis suggests that Cs acts as an electronic promoter to Ni2P phase. The 6.5 wt% Cs-containing Ni2P/SiO2 catalyst showed the best catalytic performance and stability. After reaction for 4 h, selectivity toward isobutene of higher than 96 % was achieved with the corresponding conversion value of about 6.0 % at 733 K. The enhancement in the catalytic selectivity and stability of the Cs promoted catalysts is attributed to the decrease in acid strength and acid site number and the electrons transfer from Cs to Ni.
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影响因子：
2.4
作者：
D. Nematollahi;H. Karbasi
通讯作者：
D. Nematollahi;H. Karbasi
影响因子：
5.5
作者：
Y. Takita;Xia Qing;A. Takami;H. Nishiguchi;Katsutoshi Nagaoka
通讯作者：
Y. Takita;Xia Qing;A. Takami;H. Nishiguchi;Katsutoshi Nagaoka
影响因子：
10.9
作者：
Li Hui;南昌 南昌大学化学系;Xuan XiangLan;Chen Wei-qing;Shi Qiu-jie;Liu Wenming;W. Xiang;南昌 南昌大学应用化学研究所
通讯作者：
Li Hui;南昌 南昌大学化学系;Xuan XiangLan;Chen Wei-qing;Shi Qiu-jie;Liu Wenming;W. Xiang;南昌 南昌大学应用化学研究所
酸度对Cs取代多金属氧酸盐丙烷氧化脱氢催化行为的显着影响
影响因子：
5.5
作者：
Sun, Miao;Wang, Ye;Cao, Chuanjing;Zhang, Qinghong;Wan, Huilin;Zhang, Jizhe
通讯作者：
Zhang, Jizhe
影响因子：
--
作者：
Yinghuan Fu;Hong-chao Ma;Zhenlu Wang;Wanchun Zhu;Tonghao Wu;Guojian Wang
通讯作者：
Yinghuan Fu;Hong-chao Ma;Zhenlu Wang;Wanchun Zhu;Tonghao Wu;Guojian Wang