One-pot synthesis of functional two-dimensional graphene/SnO2 composite nanosheets as a building block for self-assembly and an enhancing nanomaterial for biosensing
One-pot synthesis of functional two-dimensional graphene/SnO2 composite nanosheets as a building block for self-assembly and an enhancing nanomaterial for biosensing
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DOI：
10.1039/c1jm11612f
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发表时间：
2011-10
影响因子：
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通讯作者：
Chengzhou Zhu;Youxing Fang;D. Wen;S. Dong
中科院分区：
文献类型：
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作者：
Chengzhou Zhu;Youxing Fang;D. Wen;S. Dong
报道了一种一步合成功能二维石墨烯/SnO2复合纳米片的方法。需要注意的是，SnCl2不仅是氧化石墨烯（GO）的还原剂，也是SnO2的前驱体。另一方面，在制备过程中同时引入聚电解质聚二烯基二甲基氯化铵（PDDA），使其具有理想的自组装构件。通过静电相互作用，开发了一种与高密度贵金属纳米粒子混合制备三元GSCN/NPs （GSCN/NPs）的通用方法。突出的例子包括Au， Pt和Au@Pt杂化NPs可以加载在GSCN表面。此外，我们采用GSCN负载的高密度Au@Pt NPs作为非酶促葡萄糖检测的电化学材料，其具有良好的电催化活性。
A one-step approach to synthesize functional two-dimensional graphene/SnO2 composite nanosheets (GSCN) is reported. It should be noted that SnCl2 is not only a reducing agent for graphene oxide (GO), but also a precursor of SnO2. On the other hand, polyelectrolyte poly(diallyldimethylammonium chloride) (PDDA) was introduced simultaneously in the preparation, to endow it with an ideal self-assembly building block. Through electrostatic interaction, a general method has been developed for the preparation of ternary GSCN/nanoparticles (GSCN/NPs) hybrid structures with high-density noble metal NPs. Prominent examples including Au, Pt and Au@Pt hybrid NPs could be loaded on the surface of GSCN. Furthermore, we employed high-density Au@Pt NPs supported on GSCN as the electrochemical material for nonenzymatic glucose detection, which exhibited good electrocatalytic activity.