2D borophene: An emerging material for supercapacitor applications.

The progress of high-performance supercapacitor electrodes based on emerging 2D materials has garnered tremendous attention due to their high power density (>10 kW kg) and long charge-discharge cycle life (>10 cycles). Having been discovered in 2015, 2D borophene has emerged as a unique material among the Xenes due to its excellent electron mobility, metallic behaviour, thermal conductivity, Dirac nature, strength, and flexibility, compared to graphene. Theoretical studies show that borophene possesses a high electron density near the Fermi level which contributes to enhanced charge storage capability and quantum capacitance.

Graphene hybrids for supercapacitor applications.

The most intriguing 2D form of carbon, graphene, is composed of a thin layer of tightly spaced carbon atoms. Since its discovery, graphene has fascinated researchers owing to its distinct electrical, chemical, and mechanical properties and large surface area. Graphene is the most efficient electrode material for supercapacitor applications because of its distinctive properties.

MXene-transition metal chalcogenide hybrid materials for supercapacitor applications.

The rapid growth of technologies and miniaturization of electronic devices demand advanced the use of high-powered energy storage devices. The energy storage device are utilized in modern wearable electronics, stretchable screens, and electric vehicles. Due to their favorable electrochemical properties, nanomaterials have been used as electrodes for supercapacitors (SCs) with high power density, but they generally suffer from lower energy density than batteries.