Bottom-Up Assembly of Hydrophobic Nanocrystals and Graphene Nanosheets into Mesoporous Nanocomposites

详细信息    查看全文

• 作者：Jijiang Huang ; Wenxian Liu ; Li Wang ; Xiaoming Sun ; Fengwei Huo ; Junfeng Liu
• 刊名：Langmuir
• 出版年：2014
• 出版时间：April 22, 2014
• 年：2014
• 卷：30
• 期：15
• 页码：4434-4440
• 全文大小：421K
• 年卷期：v.30,no.15(April 22, 2014)
• ISSN：1520-5827

文摘

A general strategy for constructing graphene-based nanocomposites is achieved by emulsion-based bottom-up self-assembly of hydrophobic nanocrystals (NCs) to positively charged colloidal spheres, followed by the electrostatic assembly of NC colloidal spheres with negatively charged graphene oxide in an acidulous aqueous solution. With a simple heat treatment, 3D mesoporous NC spheres/graphene composites are obtained. TiO₂/graphene composites typically exhibit a better rate capability and cycle performance than do the corresponding isolated TiO₂ spheres.