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関連する概念動画

Batteries and Fuel Cells03:12

Batteries and Fuel Cells

31.6K
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...
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ATP Driven Pumps I: An Overview01:27

ATP Driven Pumps I: An Overview

10.1K
ATP-driven pumps, also known as transport ATPases, are integral membrane proteins. They have binding sites for ATP located on the membrane's cytosolic side and the ion-conducting domain in the transmembrane region. These pumps use the free energy released from ATP hydrolysis to move the solutes across cell membranes against an electrochemical gradient.
There are four main types of ATP-driven pumps - P-type, V-type, F-type, and ABC transporter. All these pumps are of varying complexities and...
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Electrochemical Cells01:28

Electrochemical Cells

36
Electrochemical cells are systems that convert chemical energy into electrical energy or use electrical energy to drive chemical reactions. They consist of two electrodes in contact with an electrolyte, where redox reactions enable electron transfer. Most electrochemical cells include two half-cells connected by an external wire for electron flow and a salt bridge for ion flow. The salt bridge contains an electrolyte solution and maintains charge neutrality by allowing ions—not...
36
Proton (¹H) NMR: Chemical Shift01:07

Proton (¹H) NMR: Chemical Shift

3.9K
Organic molecules primarily contain carbon and hydrogen atoms. While all the hydrogen isotopes are NMR-active, protium or hydrogen-1 is the most abundant. It has a significant energy separation between its nuclear spin states due to its large gyromagnetic ratio. As per Boltzmann's distribution, an increase in the energy separation implies a greater excess population of nuclei available for excitation, resulting in a strong NMR absorption signal.
Absorption signals of all the protium nuclei...
3.9K
Electrochemical Systems01:24

Electrochemical Systems

41
Electrochemical systems provide a fascinating insight into the dynamic interplay of charged species within various phases. One notable example is the interaction between a membrane permeable to K⁺ ions but not to Cl⁻ ions, separating an aqueous KCl solution from pure water. As K⁺ ions diffuse through the membrane, they generate net charges on each phase, leading to a potential difference between them.Similarly, when a piece of Zn is immersed in an aqueous ZnSO₄ solution,...
41
Voltaic/Galvanic Cells02:47

Voltaic/Galvanic Cells

67.1K
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,...
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Updated: Mar 6, 2026

A Protocol for Electrochemical Evaluations and State of Charge Diagnostics of a Symmetric Organic Redox Flow Battery
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A Protocol for Electrochemical Evaluations and State of Charge Diagnostics of a Symmetric Organic Redox Flow Battery

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完全 に 有機 の プロトン バッテリー

Rikard Emanuelsson1, Mia Sterby1, Maria Strømme1

  • 1Nanotechnology and Functional Materials, Department of Engineering Sciences, The Ångström Laboratory, Uppsala University , Box 534, SE-751 21 Uppsala, Sweden.

Journal of the American Chemical Society
|March 16, 2017
PubMed
まとめ
この要約は機械生成です。

この研究では,機能化された導電ポリマーを用いた 完全有機プロトン電池を導入し,金属や導電性添加物の必要性を排除します. この画期的な発見は サイクル安定性と逆転性を向上した 持続可能なプラスチック製の電池の道を開きます

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Protocol of Electrochemical Test and Characterization of Aprotic Li-O2 Battery
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科学分野:

  • 電気化学
  • 材料科学
  • オーガニック電子

背景:

  • オーガニック充電電池は 未来の技術ですが 初期の設計では 導電性添加物と金属イオン電解質が必要でした
  • 持続可能なエネルギー貯蔵には,金属や添加物のない有機電池の開発が不可欠です.

研究 の 目的:

  • プロトン電池の概念を証明する
  • 機能化された導電ポリマーを電極材料として使用することを調査する.
  • 導電性添加物や金属ベースの電解質の必要性を排除する.

主な方法:

  • 導電性ポリ ((3,4-エチレンダイオキシチオフェン) (PEDOT) を利用し,アントラキノン (PEDOT-AQ) とベンゾンキノン (PEDOT-BQ) を負の電極と正の電極として機能させた.
  • 陽子ドナーと受容体スラージの電解質を使用した.
  • 強い陽子ドナーを使って PEDOT伝導性を調整した.

主要な成果:

  • PEDOT-AQで103mAhg−1とPEDOT-BQで120mAhg−1の特定の容量を達成した.
  • 平均0.5Vの電位を示した.
  • PEDOT-AQの優れた可逆性 (>1000サイクル) を示し,PEDOT-BQをサイクル安定性の鍵として特定した.

結論:

  • 導電性添加物や金属を使わずに 完全有機プロトン電池は実現可能です
  • 機能化されたPEDOT材料は,有機電池の有望な性能を提供します.
  • プラスチックの電池の開発に伴う課題と機会を 更に研究することで解決できるでしょう