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Updated: Aug 4, 2026

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Fabrication of Spatially Confined Complex Oxides
Published on: July 1, 2013
階層的に秩序付けられた酸化物
1P. Yang, D. Zhao, G. D. Stucky, Department of Chemistry, University of California, Santa Barbara, CA 93106, USA. T. Deng and G. M. Whitesides, Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA. P. Feng,
まとめ
研究者は,シリカ,ニオビア,チタニアのような新鮮な多孔性材料を調節可能で階層的な構造で作成しました. この汎用的な方法は,さまざまなアプリケーションの材料組成とアーキテクチャの独立した制御を可能にします.
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:
- 制御された多孔性と階層的な構造を持つ材料の開発は,高度なアプリケーションにとって不可欠です.
- 既存の方法では,複数の長さスケールを独立して調節する能力が欠けていることが多い.
研究 の 目的:
- 多孔のシリカ,ニオビア,チタニアを階層的,複数長さのスケール構造で作るための汎用的な方法を開発する.
- 構造的特徴と材料組成の独立した調節性を実証する.
主な方法:
- 組み合わせたマイクロモールディング,ポリステルレン球体テンプレート,およびアンフィフィリックトライブロック共ポリマーによる無機ソルゲル種の協同組み立て.
- 構造を制御するために,異なる鋳型パターン,ラテックス球体,ブロックコポリマーを使用した.
主要な成果:
- 10ナノメートルから数マイクロメートルまでの階層的な順序で,多孔性のシリカ,ニオビア,チタニアを成功裏に準備しました.
- オーダーされた構造と物質組成の独立した改変が実証されています.
- 提示されたアプローチで達成可能な構成と構造の多様性を示した.
結論:
- 開発されたアプローチは,複雑な多孔性の材料を設計するためのシンプルで強力な経路を提供します.
- この方法は,階層構造の正確な制御を可能にし,マテリアルデザインに合わせた可能性を開きます.
関連する概念動画
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An element composed of atoms that readily lose electrons (a metal) can react with an element composed of atoms that readily gain electrons (a nonmetal) to produce ions through complete electron transfer. The compound formed by this transfer is stabilized by the electrostatic attractions (ionic bonds) between the oppositely charged ions.
Oxidation Numbers
In redox reactions, the transfer of electrons occurs between reacting species. Electron transfer is described by a hypothetical number called the oxidation number (or oxidation state). It represents the effective charge of an atom or element, which is assigned using a set of rules.
Periodic Classification of the Elements
The periodic table arranges atoms based on increasing atomic number so that elements with the same chemical properties recur periodically. When their electron configurations are added to the table, a periodic recurrence of similar electron configurations in the outer shells of these elements is observed. Because they are in the outer shells of an atom, valence electrons play the most important role in chemical reactions. The outer electrons have the highest energy of the electrons in an atom...
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Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
Most monatomic ions behave as charged spheres, and their attraction for ions of opposite charge is the same in every direction. Consequently, stable structures for ionic compounds result (1) when ions of one charge are surrounded by as many ions as possible of the opposite...
Properties of Transition Metals
Transition metals are defined as those elements that have partially filled d orbitals. As shown in Figure 1, the d-block elements in groups 3–12 are transition elements. The f-block elements, also called inner transition metals (the lanthanides and actinides), also meet this criterion because the d orbital is partially occupied before the f orbitals.

