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Updated: Mar 28, 2026

On the Preparation and Testing of Fuel Cell Catalysts Using the Thin Film Rotating Disk Electrode Method
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電気化学的酸素還元反応のための耐久性と活性性の高いPtFeナノ触媒

Dong Young Chung1, Samuel Woojoo Jun1, Gabin Yoon1

  • 1Center for Nanoparticle Research, Institute for Basic Science (IBS) , Seoul 151-742, South Korea.

Journal of the American Chemical Society
|December 17, 2015
PubMed
まとめ

研究者は,プラチナ-鉄 (PtFe) ナノ粒子のための新しいN-ドーピングカーボンシェルコーティングを開発しました. 燃料電池の商用化への道を開くのです

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Catalysis02:50

Catalysis

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Ozone is a symmetrical bent molecule stabilized by a resonance structure.
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In the presence of oxidizing agents, phenols are oxidized to quinones. Quinones can be easily reduced back to phenols using mild reducing agents. The electron-donating hydroxyl group enhances the reactivity of the aromatic ring, enabling oxidation of the ring even in the absence of an α hydrogen.
o-hydroxy phenols are oxidized to o-quinones and p-hydroxy phenols to p-quinones. Such redox reactions involve the transfer of two electrons and two protons. The reversible redox...
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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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Electrocyclic reactions are reversible reactions. They involve an intramolecular cyclization or ring-opening of a conjugated polyene. Shown below are two examples of electrocyclic reactions. In the first reaction, the formation of the cyclic product is favored. In contrast, in the second reaction, ring-opening is favored due to the high ring strain associated with cyclobutene formation.
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