Xingcheng Xiao

TL;DR: In this paper, the dielectric properties of the CVD diamond thin films have been studied using impedance and dc measurements on metal-diamond-metal test structures, and correlations have been observed between the hydrogen content in the bulk of the diamond films, measured by elastic recoil detection (ERD), and their electrical conductivity and capacitance frequency (C-f) behaviors.

TL;DR: In this article, a surface coating method for improving electrochemical performance of an electrode for a lithium-based battery is presented, where an aromatic resin or a polycyclic aromatic hydrocarbonate is dissolved in an organic solvent to form a solution.

Abstract: Nanostructured carbon materials, including carbon nanotubes, nanofibers, and nanowalls, exhibit a wide range of interesting properties dictated by the many different bonding configurations. Many of these materials can possess superhydrophobic behavior when water drops are placed on their surfaces: these drops have high contact angles and can roll freely on the surfaces, which is desirable for self-cleaning. In this work, we prepared porous carbon films using a microwave plasma enhanced chemical vapor deposition technique. These films showed superhydrophobicity with contact angle of 150°, which was explained by the synergetic effect of the highly rough surface combined with the hydrogen terminated edges of graphene sheets. However, the condensed water drops can behave differently: the drops did not roll readily. This behavior mimicked that of water on lotus leaves and further demonstrated that the reported superhydrophobic behavior is a function of how the water gets on to the surfaces.

TL;DR: In this paper, the shape memory applied to the nanowires of the active electrode material and other members of the electrode assembly is used to deal with the stresses arising from volume changes in the long shapes with lithiation and de-lithiation of active material.

TL;DR: In this paper, an asymmetric supercapacitor based on graphene/V2O5 composites and activated carbon is fabricated and evaluated, where a high energy density of approximately 50'Wh'kg−1 can be achieved at a power density of 136.4'W' kg−1, as well as long cycling stability.