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Effect of heating rate on the electrochemical performance of MnO X @CNF nanocomposites as supercapacitor electrodes

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  • Materials Science
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Chinese Science Bulletin

Abstract

Carbon nanofibers (CNFs) and MnO X @CNF nanocomposites (MCNFs) are fabricated by electrospinning and investigated as free-standing electrodes for supercapacitor. This work presents the effect of heating rate during carbonization on the electrochemical behavior of the as-prepared MCNFs electrodes in 6 mol/L KOH electrolyte. Results show that the MCNFs electrodes carbonized by relatively slower heating rate exhibit higher specific capacitance. The electronic conductivity of the slow heated MCNFs electrodes is better than that of the fast heated electrodes due to the better crystallinity of the MnO X nanoparticles and the graphitic carbon layers forming on the surface of the Mn-loaded CNFs. These MCNFs electrodes demonstrate elevated rate capability and improved cycling performance without adding any polymer binder or electronic conductor.

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References

  1. Conway BE (1999) Electrochemical capacitors: scientific fundamentals and technological applications. Kluwer Academic/Plenum Press, New York

    Google Scholar 

  2. Sharma RK, Oh HS, Shul YG et al (2007) Carbon-supported, nano-structured, manganese oxide composite electrode for electrochemical supercapacitor. J Power Sources 173:1024–1028

    Article  Google Scholar 

  3. Zhang YQ, Xia XH, Kang J et al (2012) Hydrothermal synthesized porous Co(OH)2 nanoflake film for supercapacitor application. Chin Sci Bull 57:4215–4219

    Article  Google Scholar 

  4. Wei WF, Cui XW, Chen WX et al (2011) Manganese oxide-based materials as electrochemical supercapacitor electrodes. Chem Soc Rev 40:1697–1721

    Article  Google Scholar 

  5. Toupin M, Brousse T, Bélanger D (2004) Charge storage mechanism of MnO2 electrode used in aqueous electrochemical capacitor. Chem Mater 16:3184–3190

    Article  Google Scholar 

  6. Wang JG, Yang Y, Huang ZH et al (2013) Effect of temperature on the pseudo-capacitive behavior of freestanding MnO2@carbon nanofibers composites electrodes in mild electrolyte. J Power Sources 224:86–92

    Article  Google Scholar 

  7. Fan J, Wang T, Yu CZ et al (2004) Ordered, nanostructured tin-based oxides/carbon composite as the negative-electrode material for lithium-ion batteries. Adv Mater 16:1432–1436

    Article  Google Scholar 

  8. Lu X, Wang C, Wei Y (2009) One-dimensional composite nanomaterials: synthesis by electrospinning and their applications. Small 5:2349–2370

    Article  Google Scholar 

  9. Cheng Q, Tang J, Ma J et al (2011) Graphene and nanostructured MnO2 composite electrodes for supercapacitors. Carbon 49:2917–2925

    Article  Google Scholar 

  10. Zhi MJ, Manivannan A, Meng FK et al (2012) Highly conductive electrospun carbon nanofiber/MnO2 coaxial nano-cables for high energy and power density supercapacitors. J Power Sources 208:345–353

    Article  Google Scholar 

  11. Chang JK, Chen YL, Tsai WT (2004) Effect of heat treatment on material characteristics and pseudo-capacitive properties of manganese oxide prepared by anodic deposition. J Power Sources 135:344–353

    Article  Google Scholar 

  12. Barakat NAM, Woo KD, Ansari SG et al (2009) Preparation of nanofibers consisting of MnO/Mn3O4 by using the electrospinning technique: the nanofibers have two band-gap energies. Appl Phys A 95:769–776

    Google Scholar 

  13. Kwon OS, Kim T, Lee JS et al (2012) Fabrication of graphene sheets intercalated with manganese oxide/carbon nanofibers: toward high-capacity energy storage. Small 9:248–254

    Article  Google Scholar 

  14. Ni ZH, Wang HM, Kasim J et al (2007) Graphene thickness determination using reflection and contrast spectroscopy. Nano Lett 7:2758–2763

    Article  Google Scholar 

  15. Wang JG, Yang Y, Huang ZH et al (2011) Coaxial carbon nanofibers/MnO2 nanocomposites as freestanding electrodes for high-performance electrochemical capacitors. Electrochim Acta 56:9240–9247

    Google Scholar 

  16. Wang JN, Zhang L, Niu JJ et al (2007) Synthesis of high surface area, water-dispersible graphitic carbon nanocages by an in situ template approach. Chem Mater 19:453–459

    Article  Google Scholar 

  17. Zou WY, Wang W, He BL et al (2010) Supercapacitive properties of hybrid films of manganese dioxide and polyaniline based on active carbon in organic electrolyte. J Power Sources 195:7489–7493

    Article  Google Scholar 

  18. Ragupathy P, Park DH, Campet G et al (2009) Remarkable capacity retention of nanostructured manganese oxide upon cycling as an electrode material for supercapacitor. J Phys Chem C 113:6303–6309

    Article  Google Scholar 

  19. Yan J, Liu JP, Fan ZJ et al (2012) High-performance supercapacitor electrodes based on highly corrugated graphene sheets. Carbon 50:2179–2188

    Article  Google Scholar 

  20. Yan J, Fan ZJ, Wei T et al (2010) Fast and reversible surface redox reaction of graphene–MnO2 composites as supercapacitor electrodes. Carbon 48:3825–3833

    Article  Google Scholar 

  21. Song MK, Cheng S, Chen H et al (2012) Anomalous pseudocapacitive behavior of a nanostructured, mixed-valent manganese oxide film for electrical energy storage. Nano Lett 12:3483–3490

    Article  Google Scholar 

Download references

Acknowledgments

This work was supported by the National Natural Science Foundation of China (20973044, 21173057, 51102168, 5021103030), the Ministry of Science and Technology of China (2009DPA41220, 2012CB933403), and the Chinese Academy of Sciences (KJCX2-YW-H21).

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Correspondence to Linjie Zhi.

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SPECIAL TOPIC: Nano Materials

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Shi, L., He, H., Fang, Y. et al. Effect of heating rate on the electrochemical performance of MnO X @CNF nanocomposites as supercapacitor electrodes. Chin. Sci. Bull. 59, 1832–1837 (2014). https://doi.org/10.1007/s11434-014-0294-6

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  • DOI: https://doi.org/10.1007/s11434-014-0294-6

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