Please use this identifier to cite or link to this item:
|Title:||Effect of non-ionic surfactants and its role in K intercalation in electrolytic manganese dioxide|
Transmission electron microscopy
Rutherford backscattering spectroscopy
Energy storage systems
Lithhium ion batteries
|Citation:||Biswal, A., Tripathy, B. C., Subbaiah, T., Meyrick, D., Ionescu, M., & Minakshi, M. (2014). Effect of non-ionic surfactants and its role in K intercalation in electrolytic manganese dioxide. Metallurgical and Materials Transactions E, 1(3), 226-238. doi:/10.1007/s40553-014-0022-9|
|Abstract:||The effect of non-ionic surface active agents (surfactants) Triton X-100 (TX-100) and Tween-20 (Tw-20) and their role in potassium intercalation in electrolytic manganese dioxide (EMD) produced from manganese cake has been investigated. Electrosynthesis of MnO2 in the absence or presence of surfactant was carried out from acidic MnSO4 solution obtained from manganese cake under optimized conditions. A range of characterization techniques, including field emission scanning electron microscopy, transmission electron microscopy (TEM), Rutherford back scattering (RBS), and BET surface area/porosity studies, was carried out to determine the structural and chemical characteristics of the EMD. Galvanostatic (discharge) and potentiostatic (cyclic voltammetric) studies were employed to evaluate the suitability of EMD in combination with KOH electrolyte for alkaline battery applications. The presence of surfactant played an important role in modifying the physicochemical properties of the EMD by increasing the surface area of the material and hence, enhancing its electrochemical performance. The TEM and RBS analyses of the discharged EMD (γ-MnO2) material showed clear evidence of potassium intercalation or at least the formation of a film on the MnO2 surface. The extent of intercalation was greater for EMD deposited in the presence of TX-100. Discharged MnO2 showed products of Mn2+ intermediates such as MnOOH and Mn3O4. © 2014 ASM International (ASM) and The Minerals, Metals & Materials Society (TMS)|
|Gov't Doc #:||8989|
|Appears in Collections:||Journal Articles|
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.