サイクロヘクセンエポキシデーションのための非常に安定した金属-有機フレームワークのモリブデン (VI) オキシード触媒
Hyunho Noh1, Yuexing Cui1, Aaron W Peters1
1Department of Chemistry and Chemical and Biological Engineering, Northwestern University , 2145 Sheridan Road, Evanston, Illinois 60208, United States.
Journal of the American Chemical Society
|October 26, 2016
まとめ
新しいモリブデン触媒 (Mo-SIM) は,MOF (SIM) の新しい溶熱堆積法を使用して開発されました. この高度に安定し,活性な触媒は,浸出せずにサイクロヘクセンエポキシデーションの優れた性能を示し,従来のサポートされた触媒を上回ります.
科学分野:
- 材料科学
- カタリシス
- ナノテクノロジー
背景:
- 異質な触媒は工業化学プロセスにとって不可欠です.
- モリブデンベースの触媒は酸化反応に有効ですが,浸出に苦しんでいます.
- メタル・オーガニック・フレームワーク (MOF) は,触媒のサポートのためのユニークな構造を提供します.
研究 の 目的:
- MOFのサポートを使用して,高度に安定した活性モリブデン触媒を開発する.
- サイクロヘクセンエポキシデーションのための新しい触媒の触媒性能を調査する.
- MOFノードにおけるモリブデン触媒の構造と安定性を解明する.
主な方法:
- NU-1000でMo-SIM触媒を合成するためにMOF (SIM) で溶熱堆積.
- Mo-SIM構造を特徴付けるための計算法 (DFT) とスペクトル法.
- サイクロヘクセンエポキシデーションに対するMo-SIMの触媒試験とMo-ZrO2との比較
主要な成果:
- Mo-SIM触媒は,サイクロヘクセンエポキシデーションでほぼ定量的な収量を示した.
- Mo-SIMはモリブデン (VI) オキシード粉よりも著しく高い活性を示した.
- Mo-SIMは,Mo-ZrO2アナログとは異なり,モリブデンの浸出を示さなかった.
結論:
- SIM方法は,MOFがサポートされた触媒を準備するための安定的かつ効果的な経路を提供します.
- Mo-SIMは,エポキシデーション反応のための高度に活性で安定した異質な触媒です.
- 計算データと実験データは,モリブデンがNU-1000フレームワークに強く結合することを確認しています.
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