Polystyrene/silica microspheres with core/shell structure as support of tungstophosphoric acid
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- 作者：Marina N. Gorsd ; marinagorsd@conicet.gov.ar" class="auth_mail" title="E-mail the corresponding author ; Mirta N. Blanco ; Luis R. Pizzio ; lrpizzio@quimica.unlp.edu.ar" class="auth_mail" title="E-mail the corresponding author
- 关键词：Composite materials ; Sol&ndash ; gel growth ; Electron microscopy ; Nuclear magnetic resonance
- 刊名：Materials Chemistry & Physics
- 出版年：2016
- 出版时间：1 March 2016
- 年：2016
- 卷：171
- 期：Complete
- 页码：281-289
- 全文大小：1039 K
文摘
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Tungstophosphoric acid on core/shell polystyrene/silica microspheres were prepared.
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Spheres presented a narrow size distribution and SiO2 nanoparticles uniform layer.
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Mesoporous tungstophosphoric acid impregnated solids were achieved.
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Tungstophosphate anion with undegraded Keggin structure is present in the solids.
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Solids have very strong acid sites being suitable for use in acid catalyzed reactions.