リドックス活性コロイドは,分離されたエネルギー貯蔵キャリアとして
Elena C Montoto1,2, Gavvalapalli Nagarjuna1,2, Jingshu Hui1,3
1Joint Center for Energy Storage Research , United States.
Journal of the American Chemical Society
|September 16, 2016
まとめ
研究者はエネルギー貯蔵のための新しい酸化還元活性コロイド (RAC) を開発した. これらのモジュラーポリマー球は バッテリーやフローシステムで安定した効率的なサイクルを可能にします
科学分野:
- 材料科学
- 電気化学
- ポリマー化学
背景:
- 先進的なバッテリー材料は 再生可能エネルギー貯蔵に不可欠です
- 既存の有機材料は クロスオーバーや安定性といった課題に直面しています
- バッテリーの設計に適合する多機能でモジュール化された材料が必要
研究 の 目的:
- 新しい材料のクラスである 酸化還元活性コロイド (RAC) を導入します
- RACのモジュラリティと安定性を実証する.
- エネルギー貯蔵アプリケーションにおける RAC の可能性を調査する.
主な方法:
- 制御された直径 (80~800 nm) の交結ポリマー球 (RAC) の合成.
- 単一の粒子,膜,分散としてRACの電気化学的特徴付け.
- ビオロゲン基のRACを大量電解で,フェロセン/ビオロゲン基のRACを非水性酸化還元流電池で試験する.
主要な成果:
- ViologenベースのRACは,50サイクルで99%の容量保持と99 ± 1%のクーロンビック効率を達成しました.
- 効率的な循環は,長距離の粒子内伝送によって示される.
- サイズ選択分離器でフェロゼンとビオゲンRACを使用した非水性酸化還元流電池の動作を成功させた.
結論:
- レドックス活性コロイドは,小分子有機バッテリー材料に多用途で安定した代替品を提供します.
- RACのモジュール化設計とコロイド性により,新しいエネルギー貯蔵ソリューションが可能になります.
- RACは次世代再生可能エネルギー貯蔵システムの有望なプラットフォームです.
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