Heterostructured NiSe2/CoSe2 hollow microspheres as battery-type cathode for hybrid supercapacitors: Electrochemical kinetics and energy storage mechanism

Unlocking the potential of a novel hierarchical hybrid (Ni–Co)Se2@NiMoO4@rGO–NF core–shell electrode for high-performance hybrid supercapacitors

“…The scrutiny of all these peaks was sufficient to ascertain the presence of the Co 2+ and Co 3+ oxidation states. 32 The HR spectrum of Mo 3d is displayed in Fig. 4e.…”

“…14,[27][28][29] Additionally, compared to monometallic selenides, binary TMSs have attracted widespread attention owing to them having the highest electronic conductivity, synergistic effects on faradaic reactions, improved electrochemical activity, as well as ample structural deciencies, which make them auspicious contenders in the construction of electrode materials for high-energy SCs. [30][31][32] Despite these excellent electrochemical properties, the semiconductor nature of Ni-Co-Se however shields the charge transfer kinetics from active sites to the current collector resulting in minimal rate performance and specic energy density for energy storage and conversion systems. Designing the conductive current collector framework is assumed to be highly benecial for the swi transport of electrons between the electrode and active materials, thereby boosting the electrochemical reaction.…”

Novel bouquet-like cobalt phosphate as an ultrahigh-rate and durable battery-type cathode material for hybrid supercapacitors

“…However, both the use of renewable energy and the development of new energy vehicles are inseparable from electrochemical energy storage technologies. As a novel type of energy storage device, supercapacitors (SCs) have received enormous concern on account of their eminent power density, wonderful rate performance as well as outstanding cyclic stability [1][2][3][4]. But the low energy density limits their further development [5].…”

The Semicoherent Interface and Vacancy Engineering for Constructing Ni(Co)Se2@Co(Ni)Se2 Heterojunction as Ultrahigh‐Rate Battery‐Type Supercapacitor Cathode

“…Notably, it is difficult to thoroughly solve the challenging puzzles only through the above route, [31] thus, it must be combined with other strategy together to realize the goal. Vacancy engineering would be considered as a desirable technique to facilitate the electrochemical performances of transition metal compounds (TMCs).…”