塩の溶融からのボロン炭素ニトリドナノ構造:調節可能な水溶性リン酸化物
Weiwei Lei1, David Portehault, Rumiana Dimova
1Department of Colloid Chemistry, Max-Planck-Institute of Colloids and Interfaces, Research Campus Golm, 14424 Potsdam, Germany.
Journal of the American Chemical Society
|April 22, 2011
まとめ
新しい化学処理により,炭酸塩酸化ボロン (BCNO) のナノ粒子と六角形の炭酸塩酸化ボロン (h-BN) のナノシートが生成されます. これらのBCNOナノ粒子は,調節可能な光放出と高量子産出を示し,光電子学の可能性を示しています.
科学分野:
- マテリアルサイエンス 材料科学
- ナノテクノロジー ナノテクノロジー
- 化学 化学は化学です.
背景:
- 発光ナノマテリアルの製造は,高度なアプリケーションにとって極めて重要です.
- ナノ材料の光学特性を制御するには,正確な合成方法が必要です.
研究 の 目的:
- 層状の六角性ボロン窒化物 (h-BN) ナノシートとボロン炭素窒化物 (BCNO) ナノ粒子を製造するためのシンプルで高生産性の化学プロセスを開発する.
- BCNOナノ粒子の炭素含量,そしてそれによって光放出特性を調節するために.
- 診断および光電子機器のためのBCNOナノ粒子の可能性を評価する.
主な方法:
- 700 °CでユーテクティックなLiCl/KCl塩の融媒介を用いた化学プロセス.
- ボロヒドリドナトリウムと尿素またはグアニジンを反応させる.
- 炭素含有量を0から50mol%まで制御するために,反応剤の比率を調整する.
主要な成果:
- h-BNナノシートとBCNOナノ粒子 (約. 5nm直径) である.
- 440~528nmの範囲で調節可能な光の放射を達成し,最大26%の量子収量を得ました.
- 塩溶融媒介による水中の反応運動とナノ粒子分散の強化が実証されています.
結論:
- 開発されたグリーン合成方法は,BCNOナノ粒子特性に対する正確な制御を提供します.
- 合成されたBCNOナノ粒子は無毒で,水中の集積に対して安定しており,有望な光発光特性を持っています.
- これらのBCNOナノ粒子は,診断および光電子学のアプリケーションに適しています.
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