Structural, optical and electrochemical performances of undoped and Sn2+-doped Bi2Te3 nanoparticles on WO3 electrodes

The role of native point defects and donor impurities in the electrical properties of ZnSb2O4: a hybrid density-functional study

“…Metal chalcogenide semiconductors in the form of nanoparticles and thin films have previously been considered the most promising materials for electrocatalytic and electrochemical applications. [1][2][3] Electrochemical devices, however, are primarily focused on metals with earth abundance, non-toxicity, low cost, ionic charging and discharging capabilities, and safety during chemical reactions. One of the major interests is transition metal oxides with high potential performance in various technological applications.…”

Poly(Ether Amide)-Derived, Nitrogen Self-Doped, and Interfused Carbon Nanofibers as Free-Standing Supercapacitor Electrode Materials

“…Thus, there has been a growing interest in high power and energy density storage systems. , As a promising candidate for energy storage systems, supercapacitors have the intermediate characteristics of conventional capacitors and lithium-ion batteries. , Supercapacitors have superior advantages in terms of fast charge–discharge time, high power density, high operational stability, and long cycle-life in comparison to lithium-ion batteries. , However, supercapacitors are not able to store the same amount of charge as lithium-ion batteries do, which is usually several or dozens of times lower. , This relatively low energy density of supercapacitors limits their practical applications in various application sectors of energy storage devices. Accordingly, many studies have been widely carried out to improve the energy density of supercapacitor electrode materials. − …”

Synthesis of three-dimensional hierarchical furball-like tungsten trioxide microspheres for high performance supercapacitor electrodes

“…With the advantages of high-power density, long cycling stability, high conversion efficiency and easy maintenance, supercapacitors have become a promising candidate for renewable energy conversion and storage devices, especially in photovoltaics and wind power generation and transition. 1,2 But their application in renewable energy eld is limited by their relatively low specic capacitance and relatively high average equivalent series resistance caused by the preparation technique. 3 According to the energy storage mechanism, supercapacitor electrode materials can be classied into two types, one is electrical double-layer capacitive material and another one is pseudocapacitor material.…”