Synthesis of 3C/2H/6H heterojunction SiC nanowires with high-performance supercapacitors by thermal evaporation

Abstract

In this study, we present a novel approach to enhance the electrochemical energy storage performance of SiC nanowires (SiC NWs) by developing heterostructured SiC NWs with varying contents of 3C-,...

Advancements in silicon carbide-based supercapacitors: materials, performance, and emerging applications

“…62,66 This inherent polymorphism enables the straightforward construction of heterogeneous structures via in situ self-generation of polymorphic SiC. 51,67 These heterostructures can establish junctions at interfaces, facilitating efficient charge transport and promoting favorable surface reaction kinetics. Consequently, this has the potential to significant enhance the capacitance in SC applications.…”

“…Consequently, this has the potential to significant enhance the capacitance in SC applications. 51,68,69…”

“…10d). 51 They created SiC NWs with a heterostructured combination of 3C-, 2H-, and 6H-SiC and a conductive network with a high specific surface area using a simple thermal evaporation method. By leveraging the synergistic effects of these multiple structures, they significantly improved the electrochemical properties of the SiC NWs, achieving a specific capacitance of 227.8 F g −1 at10 mV s −1 .…”

“…The tunable pore structure of SiC results in a large electrochemical reaction surface and short ion diffusion paths, further enhancing its performance as a supercapacitor material. 47,51 Furthermore, SiC's excellent cycling stability, even under high current densities, makes it as a potential candidate for supercapacitors used in electric vehicles or other demanding applications. Finally, SiC's semiconductor properties enable integration with other electronic components; 52–54 SiC-based supercapacitors offer the promise of improved energy storage, higher energy density, and enhanced durability, making them an enticing choice for a spectrum of applications, including electric vehicles, renewable energy storage, and portable electronics.…”