Solution Processed NiO/MoS2 Heterostructure Nanocomposite for Supercapacitor Electrode Application

Abstract

Metal oxide and metal dichalcogenide heterostructure composites are promising candidates for electrochemical use. In this study, a hybrid heterostructure composite electrode material was made using a straightforward hydrothermal process using transition metal oxide (NiO) and metal dichalcogenide (MoS2). The surface of the flower-like structured MoS2 was grown with granular structured NiO, and this heterostructure composite exhibited considerably improved specific capacitance when compared to the pure NiO and MoS2 materials. The pseudocapacitive performance was effectively supported by the heterostructure combination of transition metal oxide (TMOs) and metal dichalcogenide (MDC), which greatly improved ion transport within the material and storage. At a current density of 1 A/g, the prepared heterostructure composite electrode material exhibited a specific capacitance of 289 F/g, and, after 2000 cycles, the capacitance retained 101% of its initial value. The symmetric device was constructed and put through tests using LED light. This finding opens up a new avenue for the quickly increasing the field of heterostructure materials.

Formulation of Hierarchical Nanowire-Structured CoNiO2 and MoS2/CoNiO2 Hybrid Composite Electrodes for Supercapacitor Applications

“…This capacitance retention surpasses or closely aligns with the majority of the previously fabricated 2D TMDs or oxide-based ECs (Table S1). − The hierarchical MoS 2 /CoNiO 2 hybrid composite possesses several advantages in terms of outstanding rate capabilities and cyclic stability. These advantages stem from the unique properties and synergistic effects of the combined materials.…”

Microwave‐Induced Rapid Synthesis of MoS2@Cellulose Composites as an Efficient Electrode Material for Quasi‐Solid‐State Supercapacitor Application

“…of current density. [18] Muthulakshmi et al have reported SnO 2 / MoS 2 which delivered C sp 146 F g À1 at 1 A g À1 . [19] Nevertheless, the low utilization of the interlaminar reaction sites, aggregation, and restacking phenomenon of the conjugated layers exhibited by transition-metal sulfides limit their performance in ultra-capacitor and avoid their commercialization.…”

“…[ 17 ] Kasinathan et al studied the electrochemical performance of NiO–MoS 2 heterostructure and observed C sp 289 F g −1 at 1 A g −1 of current density. [ 18 ] Muthulakshmi et al have reported SnO 2 /MoS 2 which delivered C sp 146 F g −1 at 1 A g −1 . [ 19 ]…”

Recent Trends in Highly Porous Structured Carbon Electrodes for Supercapacitor Applications: A Review

“…Currently, the most important demand for cutting-edge industrial electrical technologies is using energy storage materials that are environmentally friendly. The stage of present energy-based storage devices is occupied by devices such as batteries and SCs [4][5][6][7][8]. While batteries find widespread use in electric vehicles and other electrically powered devices, the fact that they have short cycle stability and a limited power density (PD) is one of the reasons why more study has to be done on the topic, in addition to the search for other energy sources.…”