To investigate the differences between the SL-LMR and AR-LMR pathway quantitatively, the synthesis was quenched at five temperatures chosen to highlight the portion of calcination in which the two pathways diverge and then reconverge, as indicated by TGA and in situ XAS (see SI Figure ): 330°C, 430°C, 530°C, 700°C, and 750°C. The same path difference observed in TGA is also observed in Mn oxidation state in Figure , in morphology as measured by BET in Figure , and in the shape of the XANES curves in 4e.