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: Asymmetric Catalytic Hydrogenation02:17

Reduction of Alkenes: Asymmetric Catalytic Hydrogenation

3.8K
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...
3.8K
Reduction of Alkenes: Catalytic Hydrogenation02:13

Reduction of Alkenes: Catalytic Hydrogenation

13.8K
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...
13.8K
Catalysis02:50

Catalysis

30.0K
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.
30.0K
Reduction of Alkynes to cis-Alkenes: Catalytic Hydrogenation02:24

Reduction of Alkynes to cis-Alkenes: Catalytic Hydrogenation

8.9K
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.
8.9K

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

Hydroxyl-rich nanocavities on perovskite enable nearly barrierless intramolecular hydrogen transfer for nitrate electroreduction to ammonia.

Nature communications·2026
Same author

Template-Confined Synthesis of 1 nm High-Entropy-Alloy Nanoparticle Library for Electrocatalysis.

ACS nano·2026
Same author

Goblet-Like P-Driven Pt<sub>3</sub>Mn Alloys Enable High Power Density and 1000 h Durability in Practical Fuel Cells.

Journal of the American Chemical Society·2026
Same author

Structural Reconstruction and Electronic Microenvironment of Active FeCoNiOOH Support Optimized by Single Mo Atoms for Lattice Oxygen Evolution.

Small (Weinheim an der Bergstrasse, Germany)·2026
Same author

Interfacial Robustness in Fe<sub>2</sub>TiO<sub>5</sub>/ZnO Core-Shell Nanodendrites Revealed by STXM-Ptychography for Enhanced Photoelectrochemical Performance.

ACS applied materials & interfaces·2026
Same author

Molybdenum-Pocket Driven Low-Platinum Oxygen Reduction Catalysts for 100-Watt-Scale Fuel Cell Stacks.

Advanced materials (Deerfield Beach, Fla.)·2026

関連する実験動画

Updated: Jan 5, 2026

Hydrogen Production and Utilization in a Membrane Reactor
10:00

Hydrogen Production and Utilization in a Membrane Reactor

Published on: March 10, 2023

3.1K

シングルサイトPt1/CeO2触媒を使用してメタノールから効率的な水素生成

Lu-Ning Chen1, Kai-Peng Hou2, Yi-Sheng Liu

  • 1State Key Laboratory of Physical Chemistry of Solid Surfaces, Collaborative Innovation Center of Chemistry for Energy Materials, and Department of Chemistry, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen 361005 , China.

Journal of the American Chemical Society
|October 25, 2019
PubMed
まとめ

シングル・サイト・プラチナ・オン・セリウム・オキシード・触媒はメタノールから水素生成を大幅に促進する. 持続可能エネルギー貯蔵のための ナノ粒子触媒の40~800倍の効率を 提供しています

さらに関連する動画

Solar-Driven Electrochemical Green Fuel Production from CO2 and Water Using Ti3C2Tx MXene-Supported CuZn and NiCo Catalysts
10:15

Solar-Driven Electrochemical Green Fuel Production from CO2 and Water Using Ti3C2Tx MXene-Supported CuZn and NiCo Catalysts

Published on: November 7, 2025

334
Tuning the Acidity of Pt/ CNTs Catalysts for Hydrodeoxygenation of Diphenyl Ether
09:21

Tuning the Acidity of Pt/ CNTs Catalysts for Hydrodeoxygenation of Diphenyl Ether

Published on: August 17, 2019

9.3K

関連する実験動画

Last Updated: Jan 5, 2026

Hydrogen Production and Utilization in a Membrane Reactor
10:00

Hydrogen Production and Utilization in a Membrane Reactor

Published on: March 10, 2023

3.1K
Solar-Driven Electrochemical Green Fuel Production from CO2 and Water Using Ti3C2Tx MXene-Supported CuZn and NiCo Catalysts
10:15

Solar-Driven Electrochemical Green Fuel Production from CO2 and Water Using Ti3C2Tx MXene-Supported CuZn and NiCo Catalysts

Published on: November 7, 2025

334
Tuning the Acidity of Pt/ CNTs Catalysts for Hydrodeoxygenation of Diphenyl Ether
09:21

Tuning the Acidity of Pt/ CNTs Catalysts for Hydrodeoxygenation of Diphenyl Ether

Published on: August 17, 2019

9.3K

科学分野:

  • キャタリシス
  • 材料科学
  • 持続可能なエネルギー

背景:

  • 水素は有望なエネルギーキャリアですが,体積の低いエネルギー密度のために貯蔵と輸送の課題に直面しています.
  • 液体有機水素キャリア (LOHC) は,現地での水素生成を可能にすることで,実行可能な解決策を提供します.
  • 効率的な触媒の開発は,費用対効果の高い水素貯蔵と放出に不可欠です.

研究 の 目的:

  • メタノールから水素を生成する単一場所の触媒の有効性を調査する.
  • シングルサイト Pt1/CeO2の性能を従来のナノ粒子触媒と比較する.
  • 効率的な持続可能なエネルギー貯蔵のための高度な触媒材料を探求する.

主な方法:

  • 液体有機水素のキャリアとしてメタノールを利用した.
  • 単一の場所のPt1/CeO2触媒を用いて,現地で水素を生成する.
  • 2.5nmと7.0nmのPt/CeO2ナノ粒子触媒に対する触媒性能の比較

主要な成果:

  • シングルサイトPt1/CeO2触媒は,水素生成効率が著しく高いことを示した.
  • 効率は2.5 nmのPt/CeO2サンプルより40倍でした.
  • 効率は7.0nmのPt/CeO2サンプルより800倍でした.

結論:

  • シングルサイト触媒は,ナノ粒子触媒と比較して,水素生成に優れた性能を提供します.
  • この研究は,効率的で持続可能なエネルギー貯蔵のための単一サイト触媒の可能性を検証しています.
  • この発見は,水素アプリケーションのための次世代の触媒の設計のための基礎を提供します.