Jove
Visualize
お問い合わせ
JoVE
x logofacebook logolinkedin logoyoutube logo
JoVEについて
概要リーダーシップブログJoVEヘルプセンター
著者向け
出版プロセス編集委員会範囲と方針査読よくある質問投稿
図書館員向け
推薦の声購読アクセスリソース図書館諮問委員会よくある質問
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experimentsアーカイブ
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教員リソースセンター教員サイト
利用規約
プライバシーポリシー
ポリシー

関連する概念動画

Reduction of Alkenes: Catalytic Hydrogenation02:13

Reduction of Alkenes: Catalytic Hydrogenation

12.5K
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...
12.5K
Reduction of Benzene to Cyclohexane: Catalytic Hydrogenation01:28

Reduction of Benzene to Cyclohexane: Catalytic Hydrogenation

4.8K
Unlike the easy catalytic hydrogenation of an alkene double bond, hydrogenation of a benzene double bond under similar reaction conditions does not take place easily. For example, in the reduction of stilbene, the benzene ring remains unaffected while the alkene bond gets reduced. Hydrogenation of an alkene double bond is exothermic and a favorable process. In contrast, to hydrogenate the first unsaturated bond of benzene, an energy input is needed; that is, the process is endothermic. This is...
4.8K
Reduction of Alkenes: Asymmetric Catalytic Hydrogenation02:17

Reduction of Alkenes: Asymmetric Catalytic Hydrogenation

3.4K
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...
3.4K
Reduction of Alkynes to cis-Alkenes: Catalytic Hydrogenation02:24

Reduction of Alkynes to cis-Alkenes: Catalytic Hydrogenation

8.1K
Introduction
Like alkenes, alkynes can be reduced to alkanes in the presence of transition metal catalysts such as Pt, Pd, or Ni. The reaction involves two sequential syn additions of hydrogen via a cis-alkene intermediate.
8.1K
Hybridization of Atomic Orbitals II03:35

Hybridization of Atomic Orbitals II

33.7K
sp3d and sp3d 2 Hybridization
33.7K
Hydrogen Bonds00:26

Hydrogen Bonds

124.7K
Hydrogen bonds are weak attractions between atoms that have formed other chemical bonds. One of these atoms is electronegative, like oxygen, and has a partial negative charge. The other is a hydrogen atom that has bonded with another electronegative atom and has a partial positive charge.
Hydrogen Bonds Control the World!
Because hydrogen has very weak electronegativity when it binds with a strongly electronegative atom, such as oxygen or nitrogen, electrons in the bond are unequally shared....
124.7K

こちらも読む

関連記事

共著者、ジャーナル、引用グラフによってこの研究に関連する記事。

並び替え
Same author

Interlayer Electronic Coupling Breaks the *OH Desorption Limitation in Single-Atom Oxygen Reduction Catalysts.

Journal of the American Chemical Society·2026
Same author

Active site design enables industrial scale H<sub>2</sub>O<sub>2</sub> electrosynthesis with metal-free catalysts.

Nature communications·2026
Same author

Fullerenes as Unique Modular Carbon Building Blocks for Advanced Electrocatalysis.

Small methods·2025
Same author

Electronic Modulation and Active Site Exposure Using C<sub>60</sub> Fullerenolamine Enable High-Performance Alcohol Oxidation on Pd Metallene Catalysts.

Angewandte Chemie (International ed. in English)·2025
Same author

Interface Engineering, Charge Carrier Dynamics, and Solar-Driven Applications of Halide Perovskite/2D Material Heterostructured Photocatalysts.

ACS applied materials & interfaces·2025
Same author

Atomically Dispersed Metal Catalysts for Oxygen Reduction Reaction: Two-Electron vs. Four-Electron Pathways.

Angewandte Chemie (International ed. in English)·2025

関連する実験動画

Updated: Sep 9, 2025

A Simple, Low-cost, and Robust System to Measure the Volume of Hydrogen Evolved by Chemical Reactions with Aqueous Solutions
06:32

A Simple, Low-cost, and Robust System to Measure the Volume of Hydrogen Evolved by Chemical Reactions with Aqueous Solutions

Published on: August 17, 2016

19.7K

フラーレン:水素進化反応のための潜在的なプラットフォーム

Ao Yu1, Qi Huang1, Wenhao Yang1

  • 1State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, 430074, P. R. China.

ChemSusChem
|September 2, 2025
PubMed
まとめ
この要約は機械生成です。

フルレンは水分分裂における水素進化反応 (HER) の電気触媒として有望である. 独特の構造により 効率的な水素生成と幅広い触媒的応用が可能である.

キーワード:
電気触媒電子調節フラーレン水素進化反応

さらに関連する動画

Hydrogen Production and Utilization in a Membrane Reactor
10:00

Hydrogen Production and Utilization in a Membrane Reactor

Published on: March 10, 2023

2.5K
Author Spotlight: Design and Evaluation of Au-Electroplated Carbon Fiber Cloth Electrodes for Hydrogen Peroxide Fuel Cells
06:39

Author Spotlight: Design and Evaluation of Au-Electroplated Carbon Fiber Cloth Electrodes for Hydrogen Peroxide Fuel Cells

Published on: October 20, 2023

3.2K

関連する実験動画

Last Updated: Sep 9, 2025

A Simple, Low-cost, and Robust System to Measure the Volume of Hydrogen Evolved by Chemical Reactions with Aqueous Solutions
06:32

A Simple, Low-cost, and Robust System to Measure the Volume of Hydrogen Evolved by Chemical Reactions with Aqueous Solutions

Published on: August 17, 2016

19.7K
Hydrogen Production and Utilization in a Membrane Reactor
10:00

Hydrogen Production and Utilization in a Membrane Reactor

Published on: March 10, 2023

2.5K
Author Spotlight: Design and Evaluation of Au-Electroplated Carbon Fiber Cloth Electrodes for Hydrogen Peroxide Fuel Cells
06:39

Author Spotlight: Design and Evaluation of Au-Electroplated Carbon Fiber Cloth Electrodes for Hydrogen Peroxide Fuel Cells

Published on: October 20, 2023

3.2K

科学分野:

  • 材料科学
  • 電気化学
  • カタリシス

背景:

  • 水素エネルギーは 化石燃料のクリーンな代替品で エネルギー密度が高く 環境に優しいものです
  • 電気化学的な水分解は大規模水素生産の鍵となる技術です.
  • このプロセスには効率的な水素進化反応 (HER) 触媒が不可欠です.

研究 の 目的:

  • フルレン基の電気触媒の 最近の進歩を要約します
  • 触媒合成と電子調節におけるフルレンの二重の役割を強調する.
  • フルレンの電気触媒の新たな応用を探求する

主な方法:

  • 原子分散の亜ナノメートルの金属クラスタを合成するためのテンプレートとしてフルレンを使用します.
  • フルレンの電子特性を活用して 触媒界面を調節する
  • フルレンベースのHERの触媒活性と安定性を調査する.

主要な成果:

  • フルレネは HERに対して例外的な触媒的活性と安定性を示しています.
  • フラーレンは,高度に分散した金属触媒を作るための効果的なテンプレートとして機能します.
  • フルレンの電子調節により,触媒性能が向上する.

結論:

  • フラーレン基の電気触媒は,効率的な水素生成のための有望な経路を提供します.
  • これらの触媒は,HERの効率と安定性を高めています.
  • フラーレンはHERを超えた 触媒的変換の新たな道を開きます