Iron Selenide-Based Heterojunction Construction and Defect Engineering for Fast Potassium/Sodium-Ion Storage Key Laboratory/Collaborative Innovation Center of Chemical Energy Storage & Novel Cell Technology, School of Chemistry
Herein, monodispersed iron selenide embedded in a carbon nanotube network is synthesized. Graphitic carbon shells enclosing monodispersed iron selenide address the primary challenge of nanoparticle catalysts—aggregation and corrosion of nanoparticles over repeated oxygen redox reactions.
To determine the energy storage potential of the selenide-based electrodes, GCD experiments were conducted at 1 A g −1. As displayed in Fig. S7b, the GCD graphs are not strictly linear, pointing towards characteristics reminiscent of batteries, further underlined by the presence of clear plateaus.
Iron Selenide-Based Heterojunction Construction and Defect Engineering for Fast Potassium/Sodium-Ion Storage Key Laboratory/Collaborative Innovation Center of Chemical Energy Storage & Novel Cell Technology, School of Chemistry and Chemical Engineering, Liaocheng University, Shandong, 252000 China
Enhancing the long-term Na-storage cyclability of conversion-type iron selenide composite by construction of 3D inherited hyperbranched polymer buffering matrix.
Enhancing the long-term Na-storage cyclability of conversion-type iron selenide composite by construction of 3D inherited hyperbranched polymer buffering matrix.
This outstanding energy storage performance demonstrated the importance of iron-based selenides as an effective alternative for achieving a robust, energy-efficient energy storage performance.
This study portrays a facile wet-chemical synthesis of FeSe2/TiO2 nanocomposites for the first time for advanced asymmetric supercapacitor (SC) energy storage applications.
Nowadays, iron (II) selenide (FeSe), which has been widely studied for years to unveil the high-temperature superconductivity in iron-based superconductors, is drawing increasing attention in the electrical energy storage (EES) field as a supercapacitor electrode because of its many advantages.
The developed bendable solid-state supercapacitor reveals a remarkable power density of 5.1 kW kg −1 with outstanding deformation tolerance, including its use in a practical demo to run a small fan, demonstrating its capability for
This study portrays a facile wet-chemical synthesis of FeSe2/TiO2 nanocomposites for the first time for advanced asymmetric supercapacitor (SC) energy storage applications.
The developed bendable solid-state supercapacitor reveals a remarkable power density of 5.1 kW kg −1 with outstanding deformation tolerance, including its use in a practical demo to run a small fan, demonstrating its capability for advanced energy storage applications.
The facile preparation of hierarchical iron-based selenide that possess superior energy storage properties could be useful for the preparation of other metal selenide-based anode materials for use in high-performance energy storage devices.
Pandit et al.50 prepared iron selenide via successive ion layer deposition and reaction methods, which revealed a capacity of 671 F g −1 and 431 F g −1, respectively, when tested using cyclic voltammetry and charge–discharge measurements with substantially-improved rate and cycling performance.
So far, there have been few reports on the preparation of iron selenide-based electrode materials, which have mostly reported on spherical nanoparticles or nanowires morphologies.
In this work, we demonstrated that ultrasmall (∼5 nm) iron selenide (FeSe 2) nanoparticles exhibited a remarkable activity for sodium-ion storage. They were prepared from a high-temperature solution method with a narrow size distribution and high yield and could be readily redispersed in nonpolar organic solvents.
These energy storage devices are typically composed of a cathode, an anode, an electrolyte and a separator. The charge storage in these devices is generally accomplished through the charging and discharging of the electrode materials, resulting in the transfer of electrons/ions.
