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Electrodeposition of γ-MnO2 from Manganese Nodule Leach Liquor: Surface Modification and Electrochemical Applications

  • A. Baral
  • B. C. Tripathy
  • M. K. GhoshEmail author
Conference paper
Part of the The Minerals, Metals & Materials Series book series (MMMS)

Abstract

The electrolytic manganese dioxide (EMD) production through electrodeposition from manganese nodules by reduction leaching in H2SO4 medium using sucrose as reductant followed by purification through 2-stage precipitation methods is described. The purified leach liquor was the starting solution for electrodeposition. Influence of in situ addition of a cationic surfactant Cetyltri-methylammonium bromide (CTAB) (0–500 mg dm−3) on the surface morphology and electrochemical properties of the EMD was examined. The XRD patterns of the deposited material were indexed to the γ-MnO2 phase. FESEM results demonstrated that in the presence of CTAB uniform nano-fibrous type grains were formed. Higher concentration of CTAB in the electrolytic bath however, drastically decreased the current efficiency (CE) and increased the energy consumption (EC) during electrodeposition. Under the optimum CTAB concentration of 100 mg dm−3 the obtained CE and EC values were 87.64% and 1.70 kWh/Kg respectively.

Keywords

Electrolytic manganese dioxide (EMD) Nanomaterials CTAB Electrodeposition Discharge capacity 

Notes

Acknowledgements

The authors are thankful to the Director, CSIR-IMMT for his kind consent to publish this work. Authors are also thankful to Subrat K Padhi, Senior Research Fellow, CSIR-IMMT for his help and suggestions.

References

  1. 1.
    Post JE (1999) Manganese oxide minerals: crystal structures and economic and environmental significance. Proc Natl Acad Sci 96:3447–3454CrossRefGoogle Scholar
  2. 2.
    Song XC, Zhao Y, Zheng YF (2007) Synthesis of MnO2 nanostructures with sea urchin shapes by a sodium dodecyl sulfate-assisted hydrothermal process. Cryst Growth Des 7(1):159–162CrossRefGoogle Scholar
  3. 3.
    Zhang H, Gu J, Jiang Y, Zhao J, Zhang X, Wang C (2014) Effects of sodium dodecyl sulfate on the electrochemical behavior of super capacitor electrode MnO2. J Solid State Electrochem 18:235–247CrossRefGoogle Scholar
  4. 4.
    Baral A, Dash B, Ghosh MK, Subbaiah T, Minakshi M (2015) Pathway of sucrose oxidation in manganese (pyrolusite) nodule. J Ind Eng Chem 54 (49):12233–12241Google Scholar
  5. 5.
    Zhang W, Cheng CY (2007) Manganese metallurgy review. Part I: leaching of ores/secondary materials and recovery of electrolytic/chemical manganese dioxide. Hydrometallurgy 89:137–159CrossRefGoogle Scholar
  6. 6.
    Biswal A, Dash B, Tripathy BC, Subbaiah T, Shin SM, Sanjay K, Mishra BK (2013) Influence of alternative alkali reagents on Fe removal during recovery of Mn as Electrolytic Manganese Dioxide (EMD) from Mn sludge. Hydrometallurgy 140:151–162CrossRefGoogle Scholar
  7. 7.
    Ghaemi M, Khosravi-Fard L, Neshati J (2005) Improved performance of rechargeable alkaline batteries via surfactant-mediated electro synthesis of MnO2. J Power Sources 141:340–350CrossRefGoogle Scholar
  8. 8.
    Biswal A, Sanjay K, Ghosh MK, Subbaiah T, Mishra BK (2011) Preparation and characterization of EMD from manganese cake—a by product of manganese nodule processing. Hydrometallurgy 110:44–49CrossRefGoogle Scholar
  9. 9.
    Julien C, Massot M, Rangan S, Lemal M, Guyomard D (2002) Study of structural defects in γ-MnO2 by Raman spectroscopy. J Raman Spectrosc 33:223–228CrossRefGoogle Scholar
  10. 10.
    Wei M, Konishi Y, Zhou H, Sugihara H, Arakawa H (2005) Synthesis of single-crystal manganese dioxide nanowires by a soft chemical process. Nanotechnology 16:245–249CrossRefGoogle Scholar
  11. 11.
    Devaraj S, Munichandraiah N (2008) Effect of crystallographic structure of MnO2 on its electrochemical capacitance properties. J Phys Chem C 112:4406–4417CrossRefGoogle Scholar
  12. 12.
    Chen H, Wang Y, Lv YK (2016) Catalytic oxidation of NO over MnO2 with different crystal structures. RSC Adv 6:54032–54040CrossRefGoogle Scholar
  13. 13.
    Ghavami RK, Rafiei Z, Tabatabaei SM (2007) Effects of cationic CTAB and anionic SDBS surfactants on the performance of Zn–MnO2 alkaline batteries. J Power Sources 164:934–946CrossRefGoogle Scholar
  14. 14.
    Cheng BF, Chen J, Gou X, Shen P (2005) High-power Alkaline Zn–MnO2 batteries using γ-MnO2 nanowires/nanotubes and electrolytic Zinc Powder. Adv Mater 17:2753–2756CrossRefGoogle Scholar

Copyright information

© The Minerals, Metals & Materials Society 2018

Authors and Affiliations

  1. 1.CSIR-Institute of Minerals and Materials TechnologyBhubaneswarIndia

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