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Updated: Mar 15, 2026

Synthesis of Platinum-nickel Nanowires and Optimization for Oxygen Reduction Performance
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Synthesis of Platinum-nickel Nanowires and Optimization for Oxygen Reduction Performance

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高バレントニッケル-酸素種による急速な水素と酸素原子の移転

Teresa Corona1, Apparao Draksharapu2, Sandeep K Padamati2

  • 1Grup de Química Bioinspirada, Supramolecular i Catàlisi (QBIS-CAT), Institut de Química Computacional i Catàlisi (IQCC), Departament de Química, Facultat de Ciències, Universitat de Girona, C/ Maria Aurèlia Capmany 69 , E17003 Girona, Catalonia, Spain.

Journal of the American Chemical Society
|September 7, 2016
PubMed
まとめ

研究者らは,C−H結合を効果的に塩素化して酸化する新しいニッケル触媒を開発しました. ニッケル-ヒポクロライト複合体である活性種は,正式な酸化状態にもかかわらず反応性を示すことで"オクソウォール"概念に挑戦します.

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Catalysis02:50

Catalysis

The presence of a catalyst affects the rate of a chemical reaction. A catalyst is a substance that can increase the reaction rate without being consumed during the process. A basic comprehension of a catalysts’ role during chemical reactions can be understood from the concept of reaction mechanisms and energy diagrams.
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Radical Formation: Homolysis

A bond is formed between two atoms by sharing two electrons. When this bond is broken by supplying sufficient energy, either two electrons can be taken up by one atom forming ions by the cleavage called heterolysis, or the two electrons are shared by two atoms, with one each creating radicals by the cleavage called homolysis.
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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...
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Oxidative Cleavage of Alkenes: Ozonolysis

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