除氧
水滑石
催化作用
脱氢
生物柴油生产
化学
表征(材料科学)
酯交换
碳纤维
有机化学
多相催化
金属
材料科学
化学工程
生物柴油
纳米技术
复合材料
工程类
复合数
作者
Shun Nishimura,Atsushi Takagaki,Kohki Ebitani
出处
期刊:Green Chemistry
[The Royal Society of Chemistry]
日期:2013-01-01
卷期号:15 (8): 2026-2026
被引量:220
摘要
This review is intended to introduce recent progress in the characterization, synthesis and catalysis of hydrotalcite (HT) and HT-related materials. NMR, in situ neutron diffraction and TG–DTA techniques have been used to determine the local structure and structural changes of HT. Various synthetic methods of controlling the morphology of HT are introduced together with the crystal formation mechanism. The preparation methods of magnetic HTs are also included. The HT acts as a heterogeneous base catalyst for efficient transformations of organic compounds such as the synthesis of glycerol carbonate, transesterification of oils (biodiesel production) and carbon–carbon bond formations. The HT has also been used as a support for immobilizing various metal species (Ru, Pd, Ag, Au, Pt, Cu, V, Mn etc.), which enables highly selective organic reactions such as dehydrogenation of alcohols and deoxygenation of epoxides. Cooperative actions between basic sites of the HT surface and supported metal species are introduced. It is also shown that the HT can work together with other solid acids and metal catalysts to promote sequential reactions in a one-pot manner, which gives us a very important methodology for environmentally-benign synthesis of value-added chemicals, especially from biomass-derived compounds.
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