Author:Jafta, CJ; Roos, WD; Terblans, JJ; Asante, JKO; Ozoemena, KIDate:Jul 2011Previous experimental investigations have only shown, without explanation, that the pre-exponential factor (D0), in the diffusion coefficient of Sb segregating in Cu, is dependent on the surface orientation of a crystal. In this study, the ...Read more
Author:Jafta, CJ; Ozoemena, KI; Mathe, Mahlanyane K; Roos, WDDate:Aug 2012The electrochemistry and intercalation kinetics of nanostructured Li[Li0.2Mn0.54Ni0.13Co0.13]O2 (LMNC) and its aluminium-doped counterpart Li[Li0.2Mn0.52Ni0.13Co0.13Al0.02]O2 (LMNCA) are reported. FESEM and AFM images showed the LMNCA to be ...Read more