Cs Promoted Triglyceride Transesterification Over MgO Nanocatalysts
Cs Promoted Triglyceride Transesterification Over MgO Nanocatalysts
复制标题
Cs 在 MgO 纳米催化剂上促进甘油三酯酯交换反应
DOI:
10.1007/s11244-010-9461-4
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发表时间:
2010
影响因子:
3.6
通讯作者:
Montero J
中科院分区:
文献类型:
--
作者:
Montero J
The influence of Cs on the structure and basicity of nanocrystalline MgO was assessed via electron microscopy, CO2chemisorption, XRD and XPS. Caesium incorporation via co-precipitation under supercritical conditions generates Cs2Mg(CO3)2nanocrystallites with an enhanced density and strength of surface base sites. Wet impregnation proved less effective for modifying MgO nanocrystals. A strong synergy between Cs and Mg components in the co-precipitated material dramatically enhanced the rate of tributyrin transesterification with methanol relative to undoped MgO and homogeneous Cs2CO3catalysts. On-stream deactivation of Cs-doped MgO reflects heavy surface carbon deposition and loss of the high activity Cs2Mg(CO3)2phase due to limited Cs dissolution.
DOI:
--
发表时间:
2006
期刊:
影响因子:
--
作者:
C. Trionfetti;I. Babich;K. Seshan;L. Lefferts
通讯作者:
L. Lefferts
影响因子:
9.8
作者:
Montero, Janine M.;Gai, Pratibha;Lee, Adam F.
通讯作者:
Lee, Adam F.