Self-supporting NiO-coated activated carbon nanofibers based on atomic layer deposition for supercapacitor

Recent Progress of the Application of Electropolymerization in Batteries and Supercapacitors: Specific Design of Functions in Electrodes

“…In addition, a self-supporting electrode is advantageous for in situ/operando analysis, allowing for a more intuitive and accurate understanding of the electrode's phase, morphology, and structural changes during charge and discharge processes without altering the electrode state or causing damage. [4,5] Methods for preparing self-supporting electrodes include hard templating, [6][7][8] electrospinning, [9,10] electropolymerization, [11] physical vapor deposition, [12] chemical vapor deposition, [13,14] and atomic layer deposition, [15] etc. Among these methods, electropolymerization is a process that uses electrochemical techniques to form continuous polymer films or structures from dispersed monomers or polymers.…”

In situ synthesis of europium oxide (Eu2O3) nanoparticles in heteroatom doped carbon nanofibers for boosting the cycling stability of supercapacitors

“…9–11 Nevertheless, MO-based materials exhibit poor electrochemical stability owing to their limited electrical conductivity during a charge/discharge process. 12 This limitation can be addressed by integrating them with conductive carbon materials, such as carbon nanotubes, 13,14 carbon nitride nanosheets, 15 graphene, 16 reduced graphene oxide (rGO), 17 graphene/carbon nanotubes, 18,19 and carbon nanofibers (CNFs), 20 to enhance their overall conductivity. Specifically, CNFs are growing into an increasingly popular option for supercapacitor electrode materials due to their high conductivity, freestanding structure, light weight, and elastic shape.…”

“…For instance, NiO-coated activated CNFs showed an excellent capacitance of 870 F g −1 at 1 A g −1 . 20 Wang et al demonstrated that ternary composites of MnO 2 @polypyrrole@N-doped porous CNFs exhibited a high electrochemical performance for supercapacitors. 24 On the other hand, rare earth oxides (REOs) have recently gained a lot of popularity due to their excellent electronic, optical, and electrochemical properties.…”