ボールニトリド触媒を用いたプロパンからプロペンの選択的酸化脱水
J T Grant1, C A Carrero1, F Goeltl1
1Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI 53706, USA.
Science (New York, N.Y.)
|December 10, 2016
まとめ
六角性ボルニトリドとそのナノチューブは,プロパンからプロペンとエチンを生産する際の顕著な選択性を示しています. この発見は オレフィンの生産に 潜在的突破をもたらし 過去の過酸化課題を克服します
科学分野:
- 化学工学
- 材料科学
- カタリシス
背景:
- プロパンからプロペンの酸化脱水化は化学工業にとって極めて重要です.
- CO2への過酸化によりプロペンの選択性が低いため,商業的活性を阻害する.
- 効率的なオレフィン生産には新しい触媒の開発が不可欠です.
研究 の 目的:
- プロパン酸化脱水化のための六角性ボロン窒化物 (h-BN) とボロン窒化物ナノチューブ (BNNT) の触媒的性質を調査する.
- オレフィン,特にプロペンの高い選択性を達成する.
- 反応メカニズムを解明し,活性な触媒部位を特定する.
主な方法:
- プロパン酸化脱水化におけるh-BNとBNNTの触媒性能評価
- 選択性と変換を決定するための反応産物の分析.
- 触媒の振る舞いを理解するために,スペクトロスコピック技術とアブ・イニシオモデリング.
主要な成果:
- h-BNとBNNTは前例のない触媒活性とオレフィン生成の選択性を示した.
- 14%のプロパン変換で,プロペンの79%,エチンの12%の選択性が達成された.
- 活性部位として,酸化窒素の座椅子の縁が特定されました.
結論:
- 六角性ボロンニトリド材料は,選択的なオレフィン合成のための有望な代替品を提供します.
- 特定された触媒メカニズムは,高度な触媒の設計のための経路を提供します.
- この研究は,商業的に実用的なプロペンの生産技術への道を開くことができます.
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