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Oxidation of Alkenes: Syn Dihydroxylation with Potassium Permanganate02:21

Oxidation of Alkenes: Syn Dihydroxylation with Potassium Permanganate

17.9K
Alkenes can be dihydroxylated using potassium permanganate.  The method encompasses the reaction of an alkene with a cold, dilute solution of potassium permanganate under basic conditions to form a cis-diol along with a brown precipitate of manganese dioxide.
17.9K
Oxidation-Reduction Reactions03:11

Oxidation-Reduction Reactions

77.7K
Oxidation–Reduction Reactions
77.7K
Redox Reactions01:27

Redox Reactions

1.3K
Redox reactions are vital biochemical processes that underpin energy metabolism in cells. These reactions involve the transfer of electrons between molecules, occurring in tandem as oxidation and reduction. Oxidation refers to the loss of electrons, while reduction denotes their gain. This coupling ensures the seamless flow of electrons through metabolic pathways. For example, in bacterial metabolism, glucose undergoes oxidation to carbon dioxide, while oxygen is simultaneously reduced to...
1.3K
Redox Reactions01:24

Redox Reactions

59.3K
Oxidation-reduction or redox reactions involve the transfer of electrons from one molecule or atom to another. When an atom gains an electron, another atom must lose an electron, meaning oxidation and reduction must occur together. Since the redox occurs in pairs, the atom that gets oxidized is also called the reducing agent or reductant, and the atom that is reduced is also called the oxidizing agent or oxidant. A straightforward way to remember the definitions of oxidation and reduction is...
59.3K
Redox Titration: Other Oxidizing and Reducing Agents01:26

Redox Titration: Other Oxidizing and Reducing Agents

1.7K
Besides iodine, other oxidizing or reducing agents can serve as titrants in redox titrations. Common oxidizing titrants include KMnO4, cerium(IV), and K2Cr2O7. The choice of oxidizing titrants depends on factors like stability, cost, analyte strength, and reaction rate between the analyte and titrant. KMnO4 is a strong oxidizing titrant that reduces from Mn(VII) to Mn(II) in a highly acidic solution, simultaneously oxidizing the analyte to a higher oxidation state. In this case, KMnO4 acts as a...
1.7K
Oxidation of Phenols to Quinones01:17

Oxidation of Phenols to Quinones

5.2K
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...
5.2K

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Updated: Mar 24, 2026

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

Published on: December 6, 2021

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CoMnPナノ粒子を用いた効率的な水酸化

Da Li1, Habib Baydoun1, Cláudio N Verani1

  • 1Department of Chemistry, Wayne State University , Detroit, Michigan 48202, United States.

Journal of the American Chemical Society
|March 15, 2016
PubMed
まとめ
この要約は機械生成です。

研究者らは,効率的な水酸化触媒のための新しいコバルト・マンガン・フォスフィード (CoMnP) ナノ粒子を開発した. 地球に豊富に存在するこれらの触媒は 持続可能な代替エネルギー生産の可能性を 水分分解によって示しています

さらに関連する動画

Photochemical Oxidative Growth of Iridium Oxide Nanoparticles on CdSe@CdS Nanorods
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Developing Photosensitizer-Cobaloxime Hybrids for Solar-Driven H2 Production in Aqueous Aerobic Conditions
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科学分野:

  • 材料科学
  • カタリシス
  • 電気化学

背景:

  • 効率的な水酸化触媒は 持続可能なエネルギーに不可欠です
  • 地球に豊富に存在する物質から触媒を開発することは 重要な課題です

研究 の 目的:

  • 新しい三元コバルトマンガン酸化物 (CoMnP) ナノ粒子を合成し,特徴づけること.
  • これらのCoMnPナノ粒子の水酸化触媒活性を評価する.

主な方法:

  • マンガンとコバルトのカルボニル複合体のトリオクチルフォスフィンとの溶液相反応.
  • ほぼ単分散型,均質なCoMnPナノ粒子の合成 (約. 5ナノメートルの直径).
  • 触媒インクとしてのCoMnPナノ粒子の電気化学試験

主要な成果:

  • CoMnPナノ粒子は 効率的な水酸化触媒を示した.
  • 96%のファラダイク効率で 0.33Vの超電位を達成した.
  • Pエッチングと表面酸化による500サイクル後の活性がわずかに低下した.

結論:

  • ターナリ・コバルト・マンガネス・フォスフィードは,水酸化のための有望な新材料です.
  • CoMnPナノ粒子は 効率的で持続可能な水分解技術を開発するための 潜在的な経路を提供します