Liutao Yu

Area of research

Electrical and Electronic Engineering · Cognitive Neuroscience

Research interest

Research topics from publications: 3D porous gear-like copper oxide and their high electrochemical performance as supercapacitors; High electrochemical performance based on ultrathin porous CuO nanobelts grown on Cu substrate as integrated electrode; Nonenzymatic glucose sensor based on Cu–Cu2S nanocomposite electrode; Controllable synthesis of silver nanodendrites on copper rod and its application to hydrogen peroxide and glucose detection; Flexible superior electrode architectures based on three-dimensional porous spinous α-Fe2O3 with a high performance as a supercapacitor; Effective Electrocatalysis Based on Ag2O Nanowire Arrays Supported on a Copper Substrate. Representative work: A facile and mild approach was used for the controlled synthesis of 3D porous gear-like CuO on a Cu substrate (PGC) based on annealing gear-like Cu(OH)2 (GC) at 200 °C in air. There are 3–10 edges that build up a gear-like structure and a huge number of holes formed on each edge. As an integrated nanostructure, the binder-free PGC can be used as a supercapacitors electrode (SC) directly. Due to its 3D porous structure and the highly conductive Cu substrate as a current collector, the integrated electrode exhibited excellent electrochemical properties. These were demonstrated by excellent specific capacitance as high as 348 F g−1 at a discharge current density of 1 A g−1, which corresponds to A facile and low-cost approach has been developed to fabricate porous CuO nanobelts directly grown on a Cu substrate. The as-prepared CuO samples can be directly used as integrated electrodes for lithium-ion batteries and pseudo-supercapacitors without the addition of other ancillary materials such as carbon black or a binder to enhance electrode conductivity and cycling stability. The unique nanostructural features endow them with excellent electrochemical performance as demonstrated by high capacities of 640 mA h g(-1) after 100 cycles at 0.2 C rate and an excellent specific capacitance of 340 F g(-1), which corresponds to the energy density of 45 W h kg(-1). The cyclability of the electro