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

Electrodeposition01:08

Electrodeposition

709
Electrodeposition is a technique used to separate an analyte from interferents by electrochemical processes. Here, the analyte is a metal ion that can be deposited on an electrode immersed in the sample solution. The electrochemical setup consists of an anode and a cathode. When an electric current is applied to the setup, oxidation occurs at the anode. At the cathode, which consists of a large metal surface, metal ions undergo reduction and deposit onto the surface.
Electrodeposition can...
709
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
Colloidal precipitates01:09

Colloidal precipitates

747
The high insolubility of some precipitates can result in an unfavorable relative supersaturation. This can lead to colloidal particles with a large surface-to-mass ratio, where adsorption is promoted. For instance, in the precipitation of silver chloride, silver ions are adsorbed on the surface of the colloidal particles, forming a primary layer. This layer attracts ions of opposite charge (such as nitrate ions), forming a diffuse secondary layer of adsorbed ions. This electric double layer...
747

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

Trefoil polymers from a knotted synthon.

Nature chemistry·2026
Same author

Hydrogen bond stabilized *CO intermediate enables CO<sub>2</sub> electroreduction to multi-electron products on silver catalysts.

Nature communications·2026
Same author

Tuning Intermediate Adsorption and Interfacial Water Networks via Lattice Strain of NiFe Alloys Boosts Low-Concentration Nitrate Electroreduction.

Advanced materials (Deerfield Beach, Fla.)·2026
Same author

Tailoring the Cu Local Microenvironment to Create Formate Conversion-Desorption Equilibrium for Industrial Level Formaldehyde Electrooxidation.

Angewandte Chemie (International ed. in English)·2026
Same author

Ultrafast Photothermal Conversion of Ru/Zn Heterometallic Metal-Organic Framework for Synergistic Catalytic CO<sub>2</sub> Fixation.

Journal of the American Chemical Society·2026
Same author

Topological structure optimization of B,N-doped nanographenes for deep-blue emitters.

Nature communications·2026
Same journal

Linker Engineering toward NIR-II Metal-Organic Framework with Maximal Emission beyond 1000 nm for Inflammatory Bowel Disease Imaging.

Journal of the American Chemical Society·2026
Same journal

Observing Kinetic Selectivity in Anthracene Photodimerization through Selective Quenching by Excited States of Proximate Rare Earth Cations.

Journal of the American Chemical Society·2026
Same journal

Sequence-Dependent Folding of Recognition-Encoded Melamine Oligomers.

Journal of the American Chemical Society·2026
Same journal

Large Thermo- and Mechanosalient Actuation via Cooperative Twist Elasticity-Induced Packing Motif Conversion.

Journal of the American Chemical Society·2026
Same journal

Discovery and Biosynthesis of Lanthipeptides Featuring an Azepinoindole Scaffold by Radical <i>S</i>-Adenosylmethionine Enzyme-Catalyzed C-C Bond Formation.

Journal of the American Chemical Society·2026
Same journal

Enantiopurity-Controlled Magnetism in a Two-Dimensional Organic-Inorganic Material.

Journal of the American Chemical Society·2026
関連記事をすべて見る

関連する実験動画

Updated: Sep 9, 2025

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction
10:57

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction

Published on: April 10, 2018

18.4K

CO2電還元のためのモデル触媒として単層のFeクラスターの構築

Hengpan Yang1, Huizhu Cai1, Kai Song1

  • 1College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518060, China.

Journal of the American Chemical Society
|September 2, 2025
PubMed
まとめ
この要約は機械生成です。

研究者は二酸化炭素電還元 (CO2RR) のモデル触媒として,金に原子規模の鉄のクラスターを作成しました. 精密に制御されたこれらの触媒は,高効率のCO生成を実現し,触媒の設計に関する洞察を提供しました.

さらに関連する動画

Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production
08:40

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

3.7K
Simple Methods for the Preparation of Non-noble Metal Bulk-electrodes for Electrocatalytic Applications
09:18

Simple Methods for the Preparation of Non-noble Metal Bulk-electrodes for Electrocatalytic Applications

Published on: June 21, 2017

11.5K

関連する実験動画

Last Updated: Sep 9, 2025

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction
10:57

Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction

Published on: April 10, 2018

18.4K
Synthesis of Metal Nanoparticles Supported on Carbon Nanotube with Doped Co and N Atoms and its Catalytic Applications in Hydrogen Production
08:40

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

3.7K
Simple Methods for the Preparation of Non-noble Metal Bulk-electrodes for Electrocatalytic Applications
09:18

Simple Methods for the Preparation of Non-noble Metal Bulk-electrodes for Electrocatalytic Applications

Published on: June 21, 2017

11.5K

科学分野:

  • 表面科学
  • 電気触媒
  • 材料科学

背景:

  • 活性部位と構造-活性関係を理解することは,電気触媒反応を進めるために極めて重要です.
  • 鉄基の材料は,CO2電還元 (CO2RR) について広く研究されているが,鉄の正確な役割は不明である.
  • これらの課題を克服するために,よく定義された構造を持つモデル触媒の開発は不可欠です.

研究 の 目的:

  • CO2RRのモデル触媒として,Au111の単層鉄クラスター (ML-Fe) を構築し,調査する.
  • 原子スケールでの鉄触媒の構造活動関係を解明する.
  • 鉄のクラスターサイズの変化が触媒性能と反応経路にどのように影響するか理解する.

主な方法:

  • 超高真空 (UHV) の蒸気堆積を用いた単結晶基板上の単層のFeクラスターの製造.
  • スキャントンネル顕微鏡 (STM) を使用したFeクラスタサイズの原子スケールの特徴化.
  • CO2RRの電気触媒性能評価と反応メカニズムを分析するための理論的計算

主要な成果:

  • 調節可能な単層のFeクラスター (ML-Fe) を成功裏に構築した.
  • ML-Fe触媒は,CO2RRの過程で,CO生成のための60%以上のファラダイク効率 (FE) を達成した.
  • より大きな鉄ナノ粒子は,より強い*CO中間結合により,水素進化反応 (HER) を促進した.

結論:

  • 原子スケールの単層のFeクラスターは,CO2RRを研究するための効果的なモデル触媒として機能する.
  • 触媒の構造,特にFeクラスタサイズは,CO2RRとHERの選択性に決定的な影響を及ぼします.
  • この研究は,電気触媒における構造-活性関係を探求するための明確に定義された触媒の設計のための基礎を提供します.