Facile synthesis of flexible Pt/NiO 1D nanohybrids with high electrical properties using electrospinning

Abstract

The push towards miniaturized electronics requires the development of microelectrode constituents that can effectively operate electronic devices for applications such as micro supercapacitors, micro fuel cells and field-effect transistors. Despite platinum (Pt) is considered as an attractive choice for electrode in micro-electrochemical devices, the difficulty of fabricating continuous one-dimensional (1D) Pt electrode with high electrical properties prevents its extensive use. Herein, nanohybrids electrodes consisting of high concentration Pt and low loading NiO with high flexibility are fabricated by the facile coaxial electrospinning technique. By means of controlling the core/shell liquid flow rates and sintering process, continuous nanobelts or nanotubes structure could be easily obtained. Ultrahigh conductivities are observed in Pt/NiO nanobelts and nanotubes with the value of 3.95 × 103 S/cm and 4.73 × 103 S/cm, respectively. The application of testing conductivity of film electrolyte and good catalytic performance prove the promising prospect of Pt/NiO 1D nanohybrids as electrode materials.