Now showing items 1-6 of 6
Confining Sulfur Species in Cathodes of Lithium−Sulfur Batteries: Insight into Nonpolar and Polar Matrix Surfaces
(American Chemical Society, 2016-08-02)
To alleviate the polysulfides shuttle effect in lithium–sulfur batteries (LSBs), the use of a functionalized carbon matrix with a polar surface has been widely reported to chemically bind the soluble polysulfides. However, ...
Ultrahigh-rate supercapacitors with large capacitance based on edge oriented graphene coated carbonized cellulous paper as flexible freestanding electrodes
Large-capacitance and ultrahigh-rate electrochemical supercapacitors (UECs) with frequency response up to kilohertz (kHz) range are reported using light, thin, and flexible freestanding electrodes. The electrode is formed ...
Polarization and Dielectric Study of Methylammonium Lead Iodide Thin Film to Reveal its Nonferroelectric Nature under Solar Cell Operating Conditions
(American Chemical Society, 2016-05-20)
Researchers have debated whether methylammonium lead iodide (MAPbI3), with a perovskite crystal structure, is ferroelectric and therefore contributes to the current–voltage hysteresis commonly observed in hybrid perovskite ...
Ionic and Optical Properties of Methylammonium Lead Iodide Perovskite across Its Tetragonal-Cubic Structural Phase Transition
Practical hybrid perovskite solar cells (PSCs) must endure temperatures above the tetragonal–cubic structural phase transition of methylammonium lead iodide (MAPbI3). However, the ionic and optical properties of MAPbI3 in ...
Perpendicular edge oriented graphene foam supporting orthogonal TiO2(B) nanosheets as freestanding electrode for lithium ion battery
We report three-dimensional (3D) freestanding electrodes based on edge-oriented multilayer graphene (EOG) foam loaded with oriented TiO2 (B) nanosheets for lithium ion battery that exhibits large capacity and extremely ...
Soybean-derived hierarchical porous carbon with large sulfur loading and sulfur content for high-performance lithium–sulfur batteries
(Royal Society of Chemistry, 2016-09-17)
An hierarchical porous carbon nanostructure with intrinsic O- and N-dopants and an ultrahigh specific surface area of 1500 m2 g−1 is reported towards the goal of designing and achieving a better sulfur electrode for ...