Morphological and structural characterisation of sol–gel electrospun Co₃O₄nanofibres and their electro-catalytic behaviour

Abstract

Evolution of hydrogen and oxygen are a crucial part of many renewable energy systems.

Continuous nanobelts of nickel oxide–cobalt oxide hybrid with improved capacitive charge storage properties

“…On the other hand, NiO offers an order of magnitude higher conductivity (10 -2 S m -1 ) despite its relatively lower C S . There have been efforts to enhance electrochemical performance of Co 3 O 4 by the addition of NiO [25][26][27][28][29][30][31][32][33][34][35][36][37][38]. Although improved C S have been reported in many of these works, poor rate capability and device performance were still observed.…”

Polymorph nickel titanate nanofibers as bifunctional electrocatalysts towards hydrogen and oxygen evolution reactions

“…and 100 mV•s -1 ). 49 The maximum peak current attained after equilibrium was observed for the scan rate of 100 mV•s -1 for the stable cycle. Hence, CV analysis for all working electrodes were performed at this scan rate.…”

“…The protons from the electrolyte are adsorbed on the active sites of the electrocatalyst surface (cathode) through HER and receive electrons to form chemisorbed hydrogen atoms, which later disengage as hydrogen gas. 11,49,50 In this regard, CV analysis is a well-established technique to comprehend the thermodynamics of redox reactions and kinetics of adsorption process. Besides, the CP analysis is a basis for evaluating the material stability, where a definite controlled current is applied between electrodes (three electrode system) as the redox reactions occur at the active sites of the working electrode.…”

Recent Advance in Co3O4 and Co3O4-Containing Electrode Materials for High-Performance Supercapacitors

“…The sol-gel method is an important method for the synthesis of Co 3 O 4 electrode materials. In a typical sol-gel method, an active precursor is evenly mixed in the liquid phase to form a transparent and stable sol through a hydrolysis and condensation process, and then aging to form a gel [44]. The sol-gel method has some advantages, such as low reaction temperature, ease of operation, miscellaneous and uniform molecular-level mixing, smaller size, and so on [45].…”