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Materials Science and Engineering Commons

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Michigan Technological University

Theses/Dissertations

2013

DIFFaX

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Full-Text Articles in Materials Science and Engineering

Faulted Structures In Li Ion Exchanged Namo2 (M=Ni(0.25)Mn(0.75)), Aaron M. Dewahl Jan 2013

Faulted Structures In Li Ion Exchanged Namo2 (M=Ni(0.25)Mn(0.75)), Aaron M. Dewahl

Dissertations, Master's Theses and Master's Reports - Open

A family of LiMO2 materials (M=Ni0.25Mn0.75) was prepared from Na1.2-xLixMO precursors (0≤x≤0.6) via ion exchange. The resulting IE products were examined via XRD and compared to simulated XRD patterns produced using DIFFax to determine the defect structures resulting from the IE process. For the 0.1≤x≤0.6 materials, it is observed that there are 3 LiMO2 sub-phases with different Li contents present. As the amount of Li in the precursor increases, the amount of each phase changes resulting in a net shift to higher 2-theta; corresponding to an overall decrease in lattice …