モノミセルインターフェース・コンフィネッド・アセンブリによるユニークなメソポラス・カーボン・スーパーストラクチャの構築
Zaiwang Zhao1, Linlin Duan1, Yujuan Zhao2
1Department of Chemistry, Laboratory of Advanced Materials, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, iChEM and State Key Laboratory of Molecular Engineering of Polymers, College of Chemistry and Materials, Fudan University, Shanghai 200433, P. R. China.
Journal of the American Chemical Society
|June 22, 2022
まとめ
研究者は,単細胞インターフェースアセンブリを使用して,新しい3DメソポラスN-ドープされた炭素上部構造を開発しました. この材料は,高表面積と酸素還元反応 (ORR) の優れた性能を提供します.
科学分野:
- 材料科学
- ナノテクノロジー
- 電気化学
背景:
- 制御された多孔性と機能性を持つ階層的な3Dメソストラクチャは,合成することが困難です.
- 既存の材料には 十分な表面積と 互いにつながった孔のネットワークが 欠けていることが多いのです
研究 の 目的:
- 調整可能な性質を持つ新しい3DメソポラスなN-ドープされた炭素上部構造を開発する.
- 先進的な電気触媒材料としての可能性を探るため
主な方法:
- モノミケルのインターフェースは 閉じ込められたアセンブリアプローチです
- 中央の空洞と球形のメソポールの階層構造の製造.
- 毛穴の構造,表面積,形状の特徴
主要な成果:
- 前例のない 3D メソポラスな N-ドーピングカーボン・スーパーストラクチャを 互いにつながった孔で達成した.
- 展示されている超高度のアクセス可能な表面面積 (685 m2 g−1)
- 制御可能なメソポールの数,粒子の大きさ,殻の厚さ.
- 3Dの空洞なナノベシクルや 2Dのナノシートなどの他の構成が得られました
結論:
- 開発された上部構造は,酸素還元反応 (ORR) の先進的な電気触媒として有望である.
- 商用Pt/Cに匹敵する0.82Vの半波電位を達成した.
- ORRにとって顕著な耐久性を示し,エネルギーアプリケーションにおけるその可能性を強調した.
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