AI Insight
This study introduces a new two-dimensional transition metal boride material, Mo1.33Y0.67B2-xTz, termed an i-MBene, featuring in-plane ordered vacancies and yttrium substitutions within a molybdenum boride lattice. The material was synthesized and evaluated as an electrode for supercapacitor applications, demonstrating improved energy and power densities compared to previously reported MBene analogues. The structural ordering and surface terminations (Tz) of the material are proposed to contribute to enhanced electrochemical performance by facilitating ion intercalation and charge storage.
Why it matters
Advances in 2D boride materials with tunable compositions could contribute to the development of more efficient energy storage devices, which are relevant to applications in portable electronics, electric vehicles, and grid-scale energy storage. This work expands the known family of MBene materials and provides a compositional strategy for optimizing supercapacitor electrode performance.