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

Ion Exchange01:17

Ion Exchange

Ion exchange chromatography separates charged molecules from a solution by reversibly exchanging them with mobile, or 'active', ions associated with the oppositely charged stationary phase. This method can be used to separate ions, soften and deionize water, and purify solutions. The polymers comprising the ion-exchange column are high-molecular-weight and chemically stable polymers, crosslinked to be porous and essentially insoluble. They are also functionalized with either acidic or basic...
Potentiometry: Membrane Electrodes01:15

Potentiometry: Membrane Electrodes

Membrane electrodes, also known as p-ion electrodes, use membranes that selectively interact with free analyte ions, generating a potential difference across the membrane. The resulting membrane potential, known as the asymmetry potential, is not zero even when analyte concentrations on both sides of the membrane are equal. The membrane's response is typically not selective to a single analyte but proportional to the concentration of all ions in the sample solution capable of interacting at the...
Ion-Exchange Chromatography01:09

Ion-Exchange Chromatography

Ion-exchange chromatography, or IEC, is a technique for separating ions based on their affinity for the stationary phase. The stationary phase is a cross-linked polymer resin with covalently attached ionic functional groups. The functional groups can be either positively charged (cation exchangers) or negatively charged (anion exchangers). A cation exchanger consists of a polymeric anion and active cations, while an anion exchanger is a polymeric cation with active anions. The choice of...
Extraction: Advanced Methods00:56

Extraction: Advanced Methods

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 formed in...
Types of Reversible Electrodes01:24

Types of Reversible Electrodes

For electrode reversibility to be maintained, all the reactants and products involved in the half-reaction must be present at the electrode. There are several types of reversible electrodes (half-cells).In metal-metal-ion electrodes, a metal balances electrochemically with a solution of its own ions. Examples are Cu2+|Cu and Zn2+|Zn. Metals that react with the solvent, like group 1 and most group 2 metals, which react with water, and zinc, which reacts with aqueous acidic solutions, cannot be...
Metal-Ligand Bonds02:51

Metal-Ligand Bonds

The hemoglobin in the blood, the chlorophyll in green plants, vitamin B-12, and the catalyst used in the manufacture of polyethylene all contain coordination compounds. Ions of the metals, especially the transition metals, are likely to form complexes.
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...

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

Bottlebrush Side Chain Isomers: Spherical Self-Assembly Eliminates PEG Crystallinity at Room Temperature.

ACS macro letters·2026
Same author

Real-Space Local Dynamics in 1,2,3-Triazole Using Inelastic Neutron Scattering.

The journal of physical chemistry. B·2025
Same author

Controlling Chloride Crossover in Bipolar Membrane Water Electrolysis.

ACS electrochemistry·2025
Same author

Structured Polymer-Derived Ceramic Composites via Near-Infrared Thermal Stereolithography.

ACS applied polymer materials·2025
Same author

Methodology for Selecting Anion and Cation Exchange Membranes Based on Salt Transport Properties for Bipolar Membrane Fabrication.

ACS applied polymer materials·2025
Same author

Wet/Dry Bottlebrush Pressure Sensitive Adhesives via a Dangling Defect-Driven Design.

ACS applied materials & interfaces·2025

関連する実験動画

Updated: May 24, 2026

Ion-Exchange Membranes for the Fabrication of Reverse Electrodialysis Device
07:55

Ion-Exchange Membranes for the Fabrication of Reverse Electrodialysis Device

Published on: July 20, 2021

メタルカチオンベースのアニオン交換膜

Yongping Zha1, Melanie L Disabb-Miller, Zachary D Johnson

  • 1Department of Polymer Science and Engineering, University of Massachusetts, Amherst, Massachusetts 01003, United States.

Journal of the American Chemical Society
|March 6, 2012
PubMed
まとめ

研究者らは,ルテニウム複合体を用いて,金属カチオンベースの新しいアニオン交換膜 (AEM) を開発した. これらの新しいAEMは,さまざまなアプリケーションで有望な伝導性と安定性を示しています.

科学分野:

  • マテリアルサイエンス 材料科学
  • ポリマー化学のポリマー化学について
  • 電気化学 電気化学について

背景:

  • アニオン交換膜 (AEM) は,燃料電池のような電気化学装置にとって極めて重要です.
  • 伝統的なAEMは,しばしば四分位アンモニアまたはフォスフォニウムカチオンに依存しています.
  • 安定性と性能を改善したAEMの開発は,現在進行中の研究分野です.

研究 の 目的:

  • 第1回メタルカチオンベースのアニオン交換膜 (AEM) を導入し,特徴づけること.
  • AEMアプリケーションにおけるルテニウムベースの複合体の可能性を評価する.
  • これらの新しいAEMの性能を従来のAEMと比較する.

主な方法:

  • AEMsの合成は,bis ((terpyridine)) ルテニウム ((II)) 複合体とジクロペンタディエンで機能化されたノルボネンモノメールの共ポリマー化とクロスリンクによる.
  • アニオン伝導性,機械的強度,アルカリ性安定性,メタノール耐性など,膜特性の特徴.
  • 金属カタン系におけるユニークな対アニオン結合の調査.

主要な成果:

  • 合成された金属カタンベースのAEMは,従来の四分位アンモニアベースのAEMと比べてアニオン伝導性を示した.

さらに関連する動画

Merging Ion Concentration Polarization between Juxtaposed Ion Exchange Membranes to Block the Propagation of the Polarization Zone
08:06

Merging Ion Concentration Polarization between Juxtaposed Ion Exchange Membranes to Block the Propagation of the Polarization Zone

Published on: February 23, 2017

関連する実験動画

Last Updated: May 24, 2026

Ion-Exchange Membranes for the Fabrication of Reverse Electrodialysis Device
07:55

Ion-Exchange Membranes for the Fabrication of Reverse Electrodialysis Device

Published on: July 20, 2021

Merging Ion Concentration Polarization between Juxtaposed Ion Exchange Membranes to Block the Propagation of the Polarization Zone
08:06

Merging Ion Concentration Polarization between Juxtaposed Ion Exchange Membranes to Block the Propagation of the Polarization Zone

Published on: February 23, 2017

  • 膜は優れた機械性能と顕著なアルカリの安定性を示した.
  • 新しいAEMでは,メタノールに対する優れた耐性が観察されました.
  • ルテニウム複合体は,従来のAEMの単一カチオン-アニオンペアとは異なる2つの関連カウンターアニオンを示した.

    • 結論:

    • メタルカチオンベースのポリマーは,アニオン伝導アプリケーションのための有望な新しい材料のクラスを表しています.
    • 開発されたルテニウムベースのAEMは,既存の膜技術に有効な代替案を提供します.
    • 金属カタンベースの材料に関するさらなる研究は,電気化学エネルギーシステムの進歩につながる可能性があります.