In Situ Growth of Prussian Blue Nanostructures at Reduced Graphene Oxide as a Modified Platinum Electrode for Synergistic Methanol Oxidation.
In Situ Growth of Prussian Blue Nanostructures at Reduced Graphene Oxide as a Modified Platinum Electrode for Synergistic Methanol Oxidation.
复制标题
DOI：
10.1021/acs.langmuir.5b04278
复制
发表时间：
2016-02
期刊：
影响因子：
--
通讯作者：
S. Manivannan;Inhak Kang;Kyuwon Kim
中科院分区：
文献类型：
--
作者：
S. Manivannan;Inhak Kang;Kyuwon Kim
在此，我们报告了一个简单的合成策略，原位生长普鲁士蓝纳米结构（PB NS）在胺功能化的硅酸盐溶胶-凝胶基质（TPDT）-RGO复合材料通过静电相互作用。随后，将Pt纳米结构电沉积到预先形成的ITO/TPDT-RGO-PB电极上以制备RGO/PB/Pt催化剂。本方法的意义在于通过RGO层的互连原位生长PB NS，导致3D笼状多孔纳米结构。用FESEM、EDAX、XRD、XPS和电化学技术对修饰电极进行了表征。RGO/PB/Pt催化剂对甲醇氧化具有协同电催化活性和高稳定性。TPDT和PB的多孔性以及PB与RGO在Pt纳米结构存在下集成的独特电子转移介导行为促进了甲醇氧化的协同电催化活性。
Herein, we report a facile synthetic strategy for the in situ growth of Prussian blue nanostructures (PB NSs) at the amine-functionalized silicate sol-gel matrix (TPDT)-RGO composite via the electrostatic interaction. Subsequently, Pt nanostructures are electrodeposited onto the preformed ITO/TPDT-RGO-PB electrode to prepare the RGO/PB/Pt catalyst. The significance of the present method is that the PB NSs are in situ grown by interconnecting the RGO layers, leading to 3D cage-like porous nanostructure. The modified electrodes are characterized by FESEM, EDAX, XRD, XPS, and electrochemical techniques. The RGO/PB/Pt catalyst exhibits synergistic electrocatalytic activity and high stability toward methanol oxidation. The porous nature of the TPDT and PB and unique electron-transfer mediating behavior of PB integrated with RGO in the presence of Pt nanostructures facilitated synergistic electrocatalytic activity for methanol oxidation.