Bismuth-Yttrium Oxide Bi₃YO₆ (BYO) is well-known among researchers for its potential applications in different fields but its use as an electrode for asymmetric supercapacitor (ASC) has not yet been discussed and uncovered. As high energy and power densities could be well achieved with the aid of optimum potential. In the current scenario, BYO is used as an electrode material for ASCs for the first time. The material is prepared by a solid-state reaction method and its structural, morphological, and electrochemical properties have been explored by using different characterization tools. Structural analysis declared the flourite based structure of BYO having a cubic phase without any visible impurity. In a morphological analysis, a mesoporous thin film with a high surface area (~ 36.6 m² g⁻¹) with a narrow pore width of (~ 5–18 nm) has been observed. The as-prepared BYO employed as an electrode material for SCs delivers a high specific capacitance of (388 F g⁻¹ at 100 m Vs⁻¹ in the three-electrode system) with excellent cycling stability (5% loss after 6000 cycles). Essentially, an ASC is assembled using BYO and rGO as a positive and negative electrodes operating in a stable and wide potential window up to 2.2 V. Moreover, a high energy density of 11 Wh kg⁻¹ along with a power density of 648 W kg⁻¹ is obtained and maintained a high power density of 888 W kg⁻¹ with the downfall of energy density to 3.7 Wh kg⁻¹. The results prove electrode material as an alternative promising candidate for ASCs.

氧化铋钇Bi ₃ YO ₆（BYO）因其在不同领域的潜在应用而在研究人员中广为人知，但尚未讨论和发现其作为不对称超级电容器（ASC）的电极的用途。由于可以借助最佳电位很好地实现高能量和功率密度。在当前情况下，BYO首次用作ASC的电极材料。该材料是通过固态反应方法制备的，并且已通过使用不同的表征工具探索了其结构，形态和电化学性能。结构分析表明，BYO的基于萤石的结构具有立方相，没有任何可见杂质。在形态分析中，具有高表面积（〜36.6 m ²  g ^-1的中孔薄膜））的孔宽度狭窄（〜5-18 nm）。用作SCs电极材料的BYO具有高比电容（在三电极系统中，在100 m Vs ^-1下为388 F g ^-1，在三电极系统中），具有出色的循环稳定性（6000次循环后损耗为5％）。本质上，使用BYO和rGO作为正负电极组装ASC，可在高达2.2 V的稳定且宽的电位范围内运行。此外，具有11 Wh kg ^-1的高能量密度和648 W kg的功率密度获得^-1并保持888 W kg ^-1的高功率密度，而能量密度下降到3.7 Wh kg ^-1。结果证明电极材料可以作为ASC的替代候选材料。