Synthesis of 2-D nanostructured BiVO4:Ag hybrid as an efficient electrode material for supercapacitors

Facile Chemical Synthesis and Potential Supercapattery Energy Storage Application of Hydrangea-type Bi2MoO6

“…For Bi 2 MoO 6 , a single reduction peak (R1) with high current intensity could be due to the reduction of Bi 3+ to Bi 0 (−0.82 V), and, on the other hand, the two anodic peaks (O1 and O2) found at −0.48 and −0.30 V accounted for the oxidation of Bi 0 to Bi metal and the oxidation of Bi metal to Bi 3+ , respectively. The possible oxidation and reduction processes taking place during the redox reaction 40,46,47 could be as followsOxidation peaks at “O1” and “O2” were attributed to the presence of a minor amount of Bi metal situated at the Bi metal/electrolyte interface, and the oxidation peak O2 along with the voltage plateau indicated the oxidation of Bi metal to Bi(III) 48 as followsThe above equations support the occurrence of the quasi-Faradaic signature, where with an increase in scan rate the oxidation peak potential shifts to a more positive direction and the reduction peak potential to the negative direction. 43,49 Well-defined redox peaks in the CV profile are obtained only for Bi 2 O 3 , as it was found earlier that the molybdenum (Mo) element in Bi 2 MoO 6 cannot participate in redox reactions.…”

Investigation of thermal stability of 2D and 3D CoAl2O4 particles in core-shell nanostructures by Raman spectroscopy

“…Raman spectroscopy reveals information about the crystal structure, electronic structure and lattice vibrations; it can be used to probe thickness, strain, structural stability, defects or charger effects. For these reasons, it is an efficient tool for the characterization of 2D materials [20].…”

A novel method to synthesize BiSI uniformly coated with rGO by chemical bonding and its application as a supercapacitor electrode material

“…This affects the performance of the capacitor under high current discharge and long-term cycle stability. 24,29 In order to improve the conductivity of the Bi-based supercapacitor, carbon nanotubes (CNT) and Ag have been added to the Bi-based electrode material to form a composite material, which effectively improves the performance. 30,31 Carbon materials, when forming composites with Bi-materials, must have "appropriate" electrical conductivity.…”