| 초록 |
Quasi one-dimensional (1-D) nanostructure materials have been of great interest as the most promising architectures to enhance the electrocatalytic activity due to their much higher surface area, higher mass transport rate, and amendable control of more complex hybrid nanostructures. Particularly, electrochemical nanosensors based on 1-D nanostructures demonstrate immense surface area-to-volume ratios that allow improved sensitivity, portability, small size for reduced power consumption and heat generation and a reduced cost of materials. Thus, rational design and facile synthesis of hierarchical architectures based on 1-D nanostructures are currently of a great interest as unique building blocks with novel functions toward the development of advanced nanoscale electrochemical devices. It means that secondary 1-D nanostructures directly grow in a radial direction on a primary 1-D backbone, resulting in higher dimensionality structures and capability of achieving parallel connectivity and interconnection. In this study, thus, we introduce a facile synthetic strategy to grow hierarchically driven metal oxide 1-dimensional structures via the combination of an electrospinning process with a simple vapor phase transport process. Additionally, their electrochemical performances as efficient electrocatalysts will be discussed for a variety of applications. This rational engineering of a nanoscale architecture based on the direct formation of the hierarchical 1-dimensional (1-D) nanostructures on an electrode can offer a useful platform for high performance electrochemical biosensors, enabling the efficient, ultrasensitive detection of biologically important molecules. |
