Thermodynamically Stable Pickering Emulsion Configured with Carbon-Nanotube-Bridged Nanosheet-Shaped Layered Double Hydroxide for Selective Oxidation of Benzyl Alcohol

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• 作者：Yuanyuan Shan ; Chang Yu ; Juan Yang ; Qiang Dong ; Xiaoming Fan ; Jieshan Qiu
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2015
• 出版时间：June 10, 2015
• 年：2015
• 卷：7
• 期：22
• 页码：12203-12209
• 全文大小：431K
• ISSN：1944-8252

文摘

A simple strategy to configure a high thermodynamically stable Pickering emulsion with 2D sheet-shaped layered double hydroxide (LDH) coupled carbon nanotube (CNT) nanohybrid (LDH鈥揅NT) is reported. With the benefit of a unique 2D sheet-shaped structure of the LDH, the as-made LDH鈥揅NTs with amphiphilicity as solid emulsifiers have a good capability for assembling and stabilizing at the water鈥搊il interface, and a superior thermostability emulsion is delivered, indicative of an increased catalytic performance for selective oxidation of benzyl alcohol to benzaldehyde. Such a unique and excellent thermodynamic stability characteristic makes high reaction interfacial areas well-kept during the reaction process, yielding high catalytic performance. The present strategy provides a simple method for configuration and design of solid nanoparticle emulsifiers with high thermodynamic stability, which will make such a material be of great potential in many important applications such as catalysis and emulsifiers.