Palaniyandy, NithyadharseniKebede, Mesfin ARaju, KumarOzoemena, KILe Roux, LukasMathe, Mahlanyane KJayaprakasam, R2019-10-042019-10-042019-05Palaniyandy, N. (et.al.) 2019. a-MnO2 nanorod/onion-like carbon composite cathode material for aqueous zinc-ion battery. Materials Chemistry and Physics, v.230, pp 258-266.0254-05841879-3312https://www.sciencedirect.com/science/article/pii/S025405841930269Xhttps://doi.org/10.1016/j.matchemphys.2019.03.069http://hdl.handle.net/10204/11143Copyright: 2019 ElsevierOnion-like carbon (OLC) integrated a-MnO2 nanorods (a-MnO2/OLC) composite has been studied as a viable cathode material for potential development of high-performance zinc-ion batteries (ZIBs). XRD results revealed the tetragonal phase of the a-MnO2 materials, and the FE-SEM and HR-TEM images show nano-sized rod-shaped morphology with an average diameter of 30 nm. The BET surface area of the a-MnO2/OLC composite was almost 6 times (247.22 m2/g) higher than that of the pristine (42.48 m2/g) material and the thermogravimetric investigation was exposed 50% of MnO2 and 50% OLC is presented in the composite. The electrochemical performance of the cells was evaluated by galvanostatic cycling (GC), cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) using 1 M ZnSO4 plus 0.1 M MnSO4 additive as electrolyte and Zn foil as the anode. Cycling results indicate that a-MnO2/OLC composite exhibits a stable and high reversible capacity of 168 mAh g-1 (93% capacity retention) compared to the a-MnO2 material with a capacity of 104 mAh g-1 (81% capacity retention) after 100 cycles.ena-MnO2CathodeMolten salt methodOnion like carbonStable capacityZinc-ion batteriesArticlePalaniyandy, N., Kebede, M. A., Raju, K., Ozoemena, K., Le Roux, L., Mathe, M. K., & Jayaprakasam, R. (2019). a-MnO2 nanorod/onion-like carbon composite cathode material for aqueous zinc-ion battery. http://hdl.handle.net/10204/11143Palaniyandy, Nithyadharseni, Mesfin A Kebede, Kumar Raju, KI Ozoemena, Lukas Le Roux, Mahlanyane K Mathe, and R Jayaprakasam "a-MnO2 nanorod/onion-like carbon composite cathode material for aqueous zinc-ion battery." (2019) http://hdl.handle.net/10204/11143Palaniyandy N, Kebede MA, Raju K, Ozoemena K, Le Roux L, Mathe MK, et al. a-MnO2 nanorod/onion-like carbon composite cathode material for aqueous zinc-ion battery. 2019; http://hdl.handle.net/10204/11143.TY - Article AU - Palaniyandy, Nithyadharseni AU - Kebede, Mesfin A AU - Raju, Kumar AU - Ozoemena, KI AU - Le Roux, Lukas AU - Mathe, Mahlanyane K AU - Jayaprakasam, R AB - Onion-like carbon (OLC) integrated a-MnO2 nanorods (a-MnO2/OLC) composite has been studied as a viable cathode material for potential development of high-performance zinc-ion batteries (ZIBs). XRD results revealed the tetragonal phase of the a-MnO2 materials, and the FE-SEM and HR-TEM images show nano-sized rod-shaped morphology with an average diameter of 30 nm. The BET surface area of the a-MnO2/OLC composite was almost 6 times (247.22 m2/g) higher than that of the pristine (42.48 m2/g) material and the thermogravimetric investigation was exposed 50% of MnO2 and 50% OLC is presented in the composite. The electrochemical performance of the cells was evaluated by galvanostatic cycling (GC), cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) using 1 M ZnSO4 plus 0.1 M MnSO4 additive as electrolyte and Zn foil as the anode. Cycling results indicate that a-MnO2/OLC composite exhibits a stable and high reversible capacity of 168 mAh g-1 (93% capacity retention) compared to the a-MnO2 material with a capacity of 104 mAh g-1 (81% capacity retention) after 100 cycles. DA - 2019-05 DB - ResearchSpace DP - CSIR KW - a-MnO2 KW - Cathode KW - Molten salt method KW - Onion like carbon KW - Stable capacity KW - Zinc-ion batteries LK - https://researchspace.csir.co.za PY - 2019 SM - 0254-0584 SM - 1879-3312 T1 - a-MnO2 nanorod/onion-like carbon composite cathode material for aqueous zinc-ion battery TI - a-MnO2 nanorod/onion-like carbon composite cathode material for aqueous zinc-ion battery UR - http://hdl.handle.net/10204/11143 ER -