In the ZnO based varistor, the improvement of nonlinear coefficient (α) and prevention of evaporation of Bi2O3 during heat treatments can be achieved by the addition of MnO2 or Co3O4. In this conjunction, it is proper to see the effect of these additives at different low mol percentage and sintering conditions to nonlinear coefficient improvement of the varistor ceramics. In this paper, the inv...

Due to their enormous potential for large-scale energy storage, rechargeable potassium-ion batteries have been widely researched and developed. However, the drastic volume change of electrode materials induced by huge size potassium ions during cycling remains a challenge construction stable anodes. Herein, we propose novel weak acid etching strategy design fabricate robust yolk-shell spheres w...

The green synthesis method synthesized the bismuth oxide and lead-doped nanoparticles using Ferula Asafoetida leaves extract. showed greater degradation efficiency than undoped oxide. This was due to decreases in band gap energy between valence conduction of metal reduced chances electron-hole pair recombination with catalyst. were characterized by TGA, SEM, FT-IR, EDX, XRD, UV- visible Spectro...

Partially stabilized Y2O3–ZrO2 (Y-PSZ) is often used as a material in the field of oxygen sensors and batteries. However, presence tetragonal phase will seriously reduce conductivity Y-PSZ materials. As sintering aid, Bi2O3 can be to sinter materials with high ion at low temperatures. It first choice for doped system. A new microwave technique prepared Bi2O3–Y-PSZ powders. The effects doping am...

In recent years, green synthesis of nanoparticles has attracted a great attention because of medicine and biological applications. In this work, bismuth oxide nanoparticles (Bi2O3 NP) was prepared via green synthesis using mentha pulegium aqueous extract after 24 h at 90°C. The product was characterized by ultraviolet-visible (UV-VIS) spectrophotometer, Fourier transform infrared (FTIR), X-ray ...

Rare earth element-doped bismuth oxides with the fluorite structure (δ-Bi2O3) exhibit high oxygen ion conductivity at low temperature, which is promising electrolyte materials for intermediate-temperature solid oxide fuel cells (IT-SOFCs). However, traditional co-sintering process not applicable to manufacturing of IT-SOFCs using melting point Bi2O3-based electrolyte, while further high-tempera...

In this study, the possibility to stabilize O2-ion conductors in Bi2O3-V2O5 system was investigated. Six pseudo-binary mixtures [3.50 < x(V2O5) 8.50 mol%] were thermally treated at 1000?C for 1 h. The samples characterized by XRD, HRTEM/SAED, DTA and EIS techniques. high-temperature reaction between ? Bi2O3 V2O5 resulted formation of microcrystalline single-phase specimens containing phase b...