Comments on the paper "studies of structural, dielectric, conductivity, leakage current mechanism, and efficiency of complex electroceramic".

The commented paper claimed the preparation of a new compound, Bi 1/2 Li 1/2 Fe 1/2 W 1/2 O 3. By this commentary, we show that erroneous experimental evidence was provided for such claims. We demonstrate that the main phase in the commented paper is Bi 2 WO 6. [ABSTRACT FROM AUTHOR]