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

682
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...
682
Extraction: Advanced Methods00:56

Extraction: Advanced Methods

497
Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...
497
Formation of Complex Ions03:45

Formation of Complex Ions

23.8K
A type of Lewis acid-base chemistry involves the formation of a complex ion (or a coordination complex) comprising a central atom, typically a transition metal cation, surrounded by ions or molecules called ligands. These ligands can be neutral molecules like H2O or NH3, or ions such as CN− or OH−. Often, the ligands act as Lewis bases, donating a pair of electrons to the central atom. These types of Lewis acid-base reactions are examples of a broad subdiscipline called coordination...
23.8K
Ladder Diagrams: Redox Equilibria01:30

Ladder Diagrams: Redox Equilibria

485
Ladder diagrams are useful tools for understanding redox equilibrium reactions, especially the effects of concentration changes on the electrochemical potential of the reaction. The vertical axis in the redox ladder diagrams represents the electrochemical potential, E. The area of predominance is demarcated using the Nernst equation.
Consider the Fe3+/Fe2+ half-reaction, which has a standard-state potential of +0.771 V. At potentials more positive than +0.771 V, Fe3+ predominates, whereas Fe2+...
485
Voltammetric Techniques: Cyclic Voltammetry01:10

Voltammetric Techniques: Cyclic Voltammetry

569
Cyclic voltammetry (CV) is an electrochemical technique used to investigate the redox properties of a chemical species. It involves measuring the current response of an electrochemical cell as a function of the applied potential. The setup for cyclic voltammetry typically consists of a working electrode, a reference electrode, and a counter electrode—all immersed in an electrolyte solution. The working electrode is where the redox reaction of interest occurs, while the reference electrode...
569
Photochemical Electrocyclic Reactions: Stereochemistry01:26

Photochemical Electrocyclic Reactions: Stereochemistry

1.9K
The absorption of UV–visible light by conjugated systems causes the promotion of an electron from the ground state to the excited state. Consequently, photochemical electrocyclic reactions proceed via the excited-state HOMO rather than the ground-state HOMO. Since the ground- and excited-state HOMOs have different symmetries, the stereochemical outcome of electrocyclic reactions depends on the mode of activation; i.e., thermal or photochemical.
Selection Rules: Photochemical Activation
1.9K

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

Hydrogen bond network disruption enables efficient direct reactive capture of CO<sub>2</sub> from flue gas.

Nature communications·2026
Same author

Ultralong-Life Zinc-Bromine Flow Battery with Low Polybromide Shuttle and Stable Zinc Interface.

Journal of the American Chemical Society·2026
Same author

Synergistic Regulation of Interfacial Potential and Anionic Covalency for High-Voltage Cobalt-Free All-Solid-State Batteries.

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

Hydrophobic liquid electrolyte interphases for efficient aqueous zinc batteries.

Nature nanotechnology·2026
Same author

Influence of Alkaline Medium in Molten Salt Reaction on the Local Structures of Iridium Oxide Catalysts for Oxygen Evolution Reaction.

Inorganic chemistry·2026
Same author

Potential of Zero Charge as a Kinetic Descriptor for CO<sub>2</sub> Electroreduction.

Journal of the American Chemical Society·2026

関連する実験動画

Updated: Jul 26, 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

18.3K

C2+ CO2に対する選択性 酸化Cuベースの触媒

Haobo Li1, Yunling Jiang1, Xinyu Li2

  • 1School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia.

Journal of the American Chemical Society
|June 21, 2023
PubMed
まとめ

二酸化炭素 (CO2) を多炭素 (C2+) 燃料に電還元するための選択的触媒の開発は極めて重要です. この研究では,計算,AI,実験を組み合わせて,酸化銅触媒のC2+選択性をモデル化しています.

さらに関連する動画

Synthesis and Testing of Supported Pt-Cu Solid Solution Nanoparticle Catalysts for Propane Dehydrogenation
10:19

Synthesis and Testing of Supported Pt-Cu Solid Solution Nanoparticle Catalysts for Propane Dehydrogenation

Published on: July 18, 2017

12.0K
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

3.6K

関連する実験動画

Last Updated: Jul 26, 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

18.3K
Synthesis and Testing of Supported Pt-Cu Solid Solution Nanoparticle Catalysts for Propane Dehydrogenation
10:19

Synthesis and Testing of Supported Pt-Cu Solid Solution Nanoparticle Catalysts for Propane Dehydrogenation

Published on: July 18, 2017

12.0K
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

3.6K

科学分野:

  • 電気化学
  • 材料科学
  • コンピュータ化学

背景:

  • 二酸化炭素 (CO2) を多炭素 (C2+) 燃料に電還元するための選択的触媒の設計は大きな課題です.
  • 銅基触媒におけるC2+選択性メカニズムの現在の理解は限られている.

研究 の 目的:

  • 酸化銅触媒の組成に基づいたC2+製品の選択性の予測モデルを開発する.
  • C2+形成のための C-C カップリングの促進における触媒組成と酸化状態の役割を明らかにする.

主な方法:

  • 量子化学計算,人工知能 (AI) クラスタリング,実験的検証の組み合わせを使用した.
  • 酸化銅の状態の臨界潜在条件を決定するために,ab initio熱力学を用いる.
  • 触媒特性と選択性の関係を分析するために多次元スケーリング (MDS) を適用した.

主要な成果:

  • 酸化した銅の表面は,C2+形成の重要なステップであるC-C結合を大幅に強化することが判明しました.
  • 実験的なファラダイの効率と臨界の可能性との間には,逆の火山関係が確立された.
  • 選択的なC2+生産のための効果的な電気触媒を設計するために,早期および遅い移行金属とのコドーピング戦略が実証されました.

結論:

  • 理論的計算,AIクラスタリング,実験データの統合は,複雑な触媒反応における構造選択性関係を確立するための実践的な枠組みを提供します.
  • このアプローチは,効率的なCO2の電気還元を価値あるC2+製品にするために,先進的な電気触媒の合理的な設計を導くことができます.