Retraction Note: High performance supercapacitor active electrode material by drop-casting of graphite and graphene synthesized from rice husk (The International Journal of Advanced Manufacturing Technology, (2022), 123, 1-2, (657-664), 10.1007/s00170-022-10166-7)

The Editor-in-Chief has retracted this article. A number of concerns were raised after publication by a third party. Figure 6A overlaps with figure 2A in an earlier paper by different authors [1]. Figure 6C appears to overlap with figure 3C in [2], representing different materials. The FTIR spectra in figure 8 appears to overlap with the spectra in figure 8 of another article under consideration at the same time [3]. The Editor has lost confidence in the data and conclusions of this article. Author Chukwunonso Okenwa disagrees with this retraction. Authors Victor Sunday Aigbodion and Peter Ogbuna Offor did not respond to correspondence from the Publisher about this retraction.