Synthesis of a novel hybrid anode nanoarchitecture of Bi2O3/porous-RGO nanosheets for high-performance asymmetric supercapacitor

Phyto-inspired Cu/Bi oxide-based nanocomposites: synthesis, characterization, and energy relevant investigation

“…The redox peaks indicate the pseudocapacitive behavior of the investigated electrode, a typical behavior associated with, and reported for, metal oxides. 39,42,43 This pseudocapacitive behavior was further illustrated by the GCD in Fig. 6b, where the obvious plateau type shapes of GCD can be observed.…”

“…7b. The energy density is much higher than that reported for previous electrodes 39,42,43,45 Subsequently, the stability of the CuO-Bi 2 O 3 electrode was measured for 5000 cycles, as presented in Fig. 7a.…”

Bi2O3@Bi2O2CO3 Heterostructure Electrode for Significant Enhancement of Electrochemical Capacity

“…However, the replacement of metal monomers from oxides is accompanied by large volume changes, resulting in irreversible capacitance losses, as well as poor inherent conductivity and poor ion diffusivity, making the capacitance of Bi 2 O 3 much lower than the theoretical value . To ameliorate these problems, some works have compounded Bi 2 O 3 with other materials (e.g., graphene, MnO 2 , and PPy) − or growing Bi 2 O 3 directly onto collectors (e.g., nickel foam and BC). , Despite considerable progress, it is still challenging to optimize the structural properties of Bi 2 O 3 to improve its electrochemical performance …”

Electrophoretic co‐deposition of Bi2O3–multiwalled carbon nanotubes coating as supercapacitor electrode

“…In contrast, increasing the current density has a significant negative effect on the specific capacitances of pure Bi 2 O 3 , Bi 2 O 3 -MWCNTs1, and Bi 2 O 3 -MWCNTs3 electrodes, which can be observed in Figure S7. In the case of relatively high loading of active materials (>1 mg cm −2 ), the specific capacitances of the Bi 2 O 3 -MWCNTs2 are at the top level (Table2) [34][35][36][37][38]40,56,57. Although the specific capacitance of Bi 2 O 3 -MWCNTs2 prepared in our work is lower than that reported by Qiu and Uner,45,56 we found that the potential window of charging-discharging used in our work (−1.2-0.2 V) is wider than that in their work (−1.2-0 V in Qiu's work, and 0.25-0.6 V in Uner's work).…”

“…In the case of relatively high loading of active materials (>1 mg cm −2 ), the specific capacitances of the Bi 2 O 3 -MWCNTs2 are at the top level (Table2) [34][35][36][37][38]40,56,57. Although the specific capacitance of Bi 2 O 3 -MWCNTs2 prepared in our work is lower than that reported by Qiu and Uner,45,56 we found that the potential window of charging-discharging used in our work (−1.2-0.2 V) is wider than that in their work (−1.2-0 V in Qiu's work, and 0.25-0.6 V in Uner's work). In other words, a specific capacitance of Bi 2 O 3 -MWCNTs2 can be further improved when the potential window is properly compressed.…”