ブラッシュポリマーイオンゲルの二酸化炭素削減の電解
Brendon J McNicholas1, James D Blakemore1, Alice B Chang1
1Beckman Institute and Division of Chemistry and Chemical Engineering, California Institute of Technology , 1200 East California Boulevard, Mail Code 139-74, Pasadena, California 91125, United States.
Journal of the American Chemical Society
|August 26, 2016
まとめ
リドックス活性分子でポリマーイオンゲルを刷り込み 電気触媒を固定します これらのゲルは二酸化炭素を一酸化炭素に効率的に還元し,固体装置の可能性を秘めています.
科学分野:
- 電気化学
- 材料科学
- ポリマー科学
背景:
- ブラッシュポリマーイオンゲルは,電気化学アプリケーションにユニークな特性を提供します.
- レドックス活性小分子を組み込むことで これらのゲルの内部で触媒的機能を可能にします
- 効率的で安定した電気化学装置の開発には,固定電解が不可欠です.
研究 の 目的:
- リドックス活性種を埋め込んだブラッシュポリマーイオンゲルを電気化学的に特徴付ける.
- 二酸化炭素の減少のためのこれらのゲルの電解活性を調査する.
- 固体電気化学の応用におけるこれらの材料の可能性を評価する.
主な方法:
- ブロッシュポリマーイオンゲル (PS-PEO-PSトライブロック) とイオン液体 (BMIm-TFSI) の合成
- 酸化還元活性種の組み込み:フェロセン (Fc),コバルトセニウム (CoCp2 ((+)) とRe ((bpy)) ((CO)) 3Cl (1).
- 拡散係数と触媒効率を決定するために,サイクル電圧測定とクロノアンペロメトリーを用いた電気化学的特徴化.
主要な成果:
- ゲルのレドックス処理は,純粋なイオン液体の約5分の1の拡散係数を示した.
- Re ((bpy) ((CO) 3Cl (1) は均質に溶け,電気触媒によるCO2をCOに還元した.
- 誘導波は正にシフトし,CO生成の90%のファラダイ効果を達成しました.
結論:
- ブラッシュポリマーイオンゲルは,酸化還元活性種を触媒化のために効果的に固定することができます.
- これらの材料は,炭素の吸収と利用のための重要な反応である 効率的な電気触媒によるCO2削減を証明しています.
- 開発されたゲルは,固体装置における固定電気触媒の有望な代替手段である.
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