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

Batteries and Fuel Cells03:12

Batteries and Fuel Cells

27.8K
A battery is a galvanic cell that is used as a source of electrical power for specific applications. Modern batteries exist in a multitude of forms to accommodate various applications, from tiny button batteries such as those that power wristwatches to the very large batteries used to supply backup energy to municipal power grids. Some batteries are designed for single-use applications and cannot be recharged (primary cells), while others are based on conveniently reversible cell reactions that...
27.8K
Voltaic/Galvanic Cells02:47

Voltaic/Galvanic Cells

58.2K
Spontaneous Chemical Reactions
Spontaneous redox reactions occur abundantly in nature. The chemical reaction occurring in a disposable AA battery powering our remote controls is one such example of a spontaneous redox reaction. Another example is the immersion of coiled copper wire into an aqueous silver nitrate solution. The reaction shows a gradual, visually impressive color change from colorless to bright blue and the formation of a grey precipitate on the copper wire. In this experiment,...
58.2K
Electron Transport Chain: Complex III and IV01:43

Electron Transport Chain: Complex III and IV

7.9K
During the electron transport chain, electrons from NADH and FADH2 are first transferred to complexes I and II, respectively. These two complexes then transfer the electrons to ubiquinol, which carries them further to complex III. Complex III passes the electrons across the intermembrane space to Cyt c, which carries them further to complex IV. Complex IV donates electrons to oxygen and reduces it to water. As electrons pass through complexes I, III, and IV, the energy released aids the pumping...
7.9K
Electron Transport Chains01:28

Electron Transport Chains

100.9K
The final stage of cellular respiration is oxidative phosphorylation that consists of two steps: the electron transport chain and chemiosmosis. The electron transport chain is a set of proteins found in the inner mitochondrial membrane in eukaryotic cells. Its primary function is to establish a proton gradient that can be used during chemiosmosis to produce ATP and generate electron carriers, such as NAD+ and FAD, that are used in glycolysis and the citric acid cycle.
The ETC is comprised of...
100.9K
Electrolysis03:00

Electrolysis

27.2K
In a galvanic cell, the electrical work is done by a redox system on its surroundings as electrons produced by the spontaneous redox reactions are transferred through an external circuit. Alternatively, an external circuit does work on a redox system by imposing a voltage sufficient to drive an otherwise nonspontaneous reaction in a process known as electrolysis. For instance, recharging a battery involves the use of an external power source to drive the spontaneous (discharge) cell reaction in...
27.2K
The Electron Transport Chain01:30

The Electron Transport Chain

17.1K
The electron transport chain or oxidative phosphorylation is an exothermic process in which free energy released during electron transfer reactions is coupled to ATP synthesis. This process is a significant source of energy in aerobic cells, and therefore inhibitors of the electron transport chain can be detrimental to the cell's metabolic processes.
Inhibitors of the electron transport chain
Rotenone, a widely used pesticide, prevents electron transfer from Fe-S cluster to ubiquinone or Q...
17.1K

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

Toward Efficient Hydrogen Production: Impact of Solid Solution of Tungsten on Nickel-Iron Hydroxide OER Catalysts.

ACS catalysis·2026
Same author

Breaking the Linear Scaling Relations for the Oxygen Reduction Reaction with a Dual-Atom Catalyst Composed of a MnFe-Porphyrrole Aerogel.

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

Anion-Exchange-Membrane Electrolysis with Alkali-Free Water Feed.

Chemical reviews·2025
Same author

Morphological and structural design through hard-templating of PGM-free electrocatalysts for AEMFC applications.

Nanoscale·2024
Same author

Applying Nuclear Forward Scattering as <i>In Situ</i> and <i>Operando</i> Tool for the Characterization of FeN<sub>4</sub> Moieties in the Hydrogen Evolution Reaction.

Journal of the American Chemical Society·2024
Same author

Introducing Electron Buffers into Intermetallic Pt Alloys against Surface Polarization for High-Performing Fuel Cells.

Journal of the American Chemical Society·2024

関連する実験動画

Updated: Aug 13, 2025

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

3.1K

ダイレクトキノン燃料電池

Yan Yurko1, Lior Elbaz1

  • 1Department of Chemistry, Institute of Nanotechnology and Advanced Materials (BINA), Bar-Ilan University, Ramat Gan 5290002, Israel.

Journal of the American Chemical Society
|January 20, 2023
PubMed
まとめ
この要約は機械生成です。

ダイレクト・ヒドロキノン燃料電池 (DQFC) は,ダイレクト・メタノール燃料電池 (DMFC) を3倍上回る持続可能なエネルギーソリューションを提供します. この新しいシステムは,液体水素キャリアとしてアントラキノン-2,7-ジスルフォニック酸 (AQDS) を利用し,アノド触媒なしで可逆的に動作します.

さらに関連する動画

On the Preparation and Testing of Fuel Cell Catalysts Using the Thin Film Rotating Disk Electrode Method
12:12

On the Preparation and Testing of Fuel Cell Catalysts Using the Thin Film Rotating Disk Electrode Method

Published on: March 16, 2018

22.1K
Combustion Characterization and Model Fuel Development for Micro-tubular Flame-assisted Fuel Cells
08:16

Combustion Characterization and Model Fuel Development for Micro-tubular Flame-assisted Fuel Cells

Published on: October 2, 2016

9.6K

関連する実験動画

Last Updated: Aug 13, 2025

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

3.1K
On the Preparation and Testing of Fuel Cell Catalysts Using the Thin Film Rotating Disk Electrode Method
12:12

On the Preparation and Testing of Fuel Cell Catalysts Using the Thin Film Rotating Disk Electrode Method

Published on: March 16, 2018

22.1K
Combustion Characterization and Model Fuel Development for Micro-tubular Flame-assisted Fuel Cells
08:16

Combustion Characterization and Model Fuel Development for Micro-tubular Flame-assisted Fuel Cells

Published on: October 2, 2016

9.6K

科学分野:

  • 電気化学と持続可能なエネルギー技術
  • エネルギー貯蔵のための材料科学
  • 燃料電池の開発のための化学工学

背景:

  • 燃料電池技術の採用を 推進しています
  • メタノールのような液体水素キャリア (LHC) は,直接的なLHC燃料電池 (例えば,DMFC) で使用されます.
  • 既存のDMFCは,高い触媒負荷と副産物の形成により耐久性とコストに問題があります.

研究 の 目的:

  • 新しいLHCとしてアントラキノン-2,7-ジスルフォン酸 (AQDS) を使用した直接ヒドロキノン燃料電池 (DQFC) の開発と特徴付け.
  • 既存のDMFC技術と比較してDQFCの性能を評価する.
  • キノンを用いた可逆燃料電池システムの可能性を実証する.

主な方法:

  • 液体水素キャリアとしてAQDSを使用するDQFCの開発.
  • 燃料電池システム内のキノンの継続的なフロー操作.
  • 燃料電池の性能を最大化するために,動作条件の最適化.

主要な成果:

  • DQFCは最先端のDMFCの3倍以上のピーク電力密度を示しています.
  • DQFCのアノードは触媒を必要とせずに効果的に動作します.
  • クイノンは,現場で陽子で充電され,可逆燃料電池システムを確立しました.

結論:

  • DQFCは燃料電池技術の有望な進歩であり,優れた性能とシンプルな設計を提供します.
  • 触媒のないアノドと可逆的な操作は,効率的なLHCとしてのAQDSの可能性を強調しています.
  • 運用条件のさらなる最適化により,持続可能なエネルギーのためのDQFCの実用的な応用が強化されます.