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Updated: May 19, 2026

Supercritical Nitrogen Processing for the Purification of Reactive Porous Materials
09:05

Supercritical Nitrogen Processing for the Purification of Reactive Porous Materials

Published on: May 15, 2015

和化纳米集群和纳米晶体的初始研究:检查有效储存的最佳结构和组成

Emmanuel N Koukaras1, Aristides D Zdetsis, Michael M Sigalas

  • 1Molecular Engineering Laboratory, Department of Physics and §Department of Material Science, University of Patras, Patras 26500 GR, Greece. koukaras@physics.upatras.gr

Journal of the American Chemical Society
|August 28, 2012
PubMed
概括

这项研究探讨了基于的纳米集群和纳米晶体,以有效地储存气. 计算分析确定了增强存储材料的最佳尺寸和度.

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Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production

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Reduction of Alkenes: Asymmetric Catalytic Hydrogenation02:17

Reduction of Alkenes: Asymmetric Catalytic Hydrogenation

Catalytic hydrogenation of alkenes is a transition-metal catalyzed reduction of the double bond using molecular hydrogen to give alkanes. The mode of hydrogen addition follows syn stereochemistry.
The metal catalyst used can be either heterogeneous or homogeneous. When hydrogenation of an alkene generates a chiral center, a pair of enantiomeric products is expected to form. However, an enantiomeric excess of one of the products can be facilitated using an enantioselective reaction or an...
Reduction of Alkenes: Catalytic Hydrogenation02:13

Reduction of Alkenes: Catalytic Hydrogenation

Alkenes undergo reduction by the addition of molecular hydrogen to give alkanes. Because the process generally occurs in the presence of a transition-metal catalyst, the reaction is called catalytic hydrogenation.
Metals like palladium, platinum, and nickel are commonly used in their solid forms — fine powder on an inert surface. As these catalysts remain insoluble in the reaction mixture, they are referred to as heterogeneous catalysts.
The hydrogenation process takes place on the surface of...