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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

マグネシウムおよびマグネシウム水素ナノクラスターおよびナノ結晶の初期研究:効率的な水素貯蔵のための最適な構造と組成を調べる

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
まとめ

この研究は,効率的な水素貯蔵のためのマグネシウムベースのナノクラスターとナノ結晶を探索しています. 計算分析により,強化された水素貯蔵材料の最適なサイズと水素濃度が特定されました.

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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...
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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...