Highly Monodisperse Zirconia-Coated Silica Spheres and Zirconia/Silica Hollow 
Spheres with Remarkable Textural Properties

Arnal, Pablo M.; Weidenthaler, Claudia; Schüth, Ferdi

doi:10.1021/cm052580a

アイテム詳細

登録内容を編集ファイル形式で保存

一時保存へ追加

タグ情報を表示リリース履歴を表示詳細要約

公開

学術論文

Highly Monodisperse Zirconia-Coated Silica Spheres and Zirconia/Silica Hollow Spheres with Remarkable Textural Properties

MPS-Authors

/persons/resource/persons58401

Arnal, Pablo M.
Research Department Schüth, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

/persons/resource/persons59100

Weidenthaler, Claudia
Research Department Schüth, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

/persons/resource/persons58985

Schüth, Ferdi
Research Department Schüth, Max-Planck-Institut für Kohlenforschung, Max Planck Society;

External Resource

There are no locators available

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

フルテキスト (公開)

公開されているフルテキストはありません

付随資料 (公開)

There is no public supplementary material available

引用

Arnal, P. M., Weidenthaler, C., & Schüth, F. (2006). Highly Monodisperse Zirconia-Coated Silica Spheres and Zirconia/Silica Hollow Spheres with Remarkable Textural Properties. Chemistry of Materials, 18(11), 2733-2739. doi:10.1021/cm052580a.

引用: https://hdl.handle.net/11858/00-001M-0000-000F-92D1-1

要旨

High surface area zirconia is an interesting material for many applications. In this contribution, we describe the synthesis of SiO₂@ZrO₂ and @ZrO₂ (Liz-Marzán, L. M.; Correa-Duarte, M. A.; Pastoriza-Santos, I.; Mulvaney, P.; Ung, T.; Giersig, M.; Kotov, N. A. In Handbook of Surfaces and Interfaces of Materials; Nalwa, H. S., Ed.; Academic Press: San Diego, 2001; Vol. 3) of high surface area zirconia. The synthesis consists of (1) preparing monodisperse silica spheres; (2) coating the spheres with hydrated zirconia; (3) aging the composites; (4) calcining the composite at 1173 K; and (5) leaching the silica with NaOH solution. This process results in the formation of hollow zirconia spheres with a surface area of around 300 m² g^-1. The zirconia is present in the tetragonal polymorph. The final material still contains silicon and sodium. However, it is present in a phase of which the nature could not be fully ascertained.