Data related to the synthesis, characterization and electrochemical performance of high capacity sodium manganese periodate electrodes

Abstract

Sodium manganese periodate compounds were synthesized to serve as high capacity cathodes. The composition and morphology of resulting products were characterized by scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), X-ray Diffraction (XRD) and thermogravimetric analysis (TGA). Composite cathodes made from the synthesized periodates were used to fabricate batteries with zinc anode and acetic acid electrolyte. Electrode formulations were optimized using nanocarbon conductive additives. For the full design and mechanism related to the sodium manganese periodate electrode with specific capacity as high as 750 mAh g −1 , please refer to our research article “High Capacity Aqueous Periodate Batteries Featuring a Nine-Electron Transfer Process” [1].

High capacity aqueous periodate batteries featuring a nine-electron transfer process

“…More details can be found in Ref. [22]. Several synthetic processes were tested (See Table 1 in Ref.…”

“…Several synthetic processes were tested (See Table 1 in Ref. [22]). Direct addition of MnSO 4 into NaIO 4 was the best approach and showed the most desired Na:Mn:I atomic ratio of 1:1:1.…”

“…3 in Ref. [22]). There has been a trend to make metal oxide/salt-carbon composite for electrode applications [23–25].…”

“…Yet it was found that in presence of carbon, larger particles with undesired Na:Mn:I atomic ratio was obtained (Figure 4 and Table 2 in Ref. [22]).…”