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Synthesis and electrochemical properties of carbon nanotubes obtained by pyrolysis of acetylene using AB5 alloy

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Abstract

The paper discusses the efficiency of catalytic synthesis and structure of multi-wall carbon nanotubes obtained by acetylene decomposition over Mm (mischmetal)-based multi-component alloy of AB5 type. Different parameters of catalytic chemical vapor deposition process have an influence on the efficiency. Some of them were changed to obtain the highest amount of carbon material. The samples were purified by acid and were characterized by BET surface area measurements, scanning electron microscopy, and transmission electron microscopy analysis. However, both catalyst and parameters of process (such as the flow rate of acetylene) need further examination to make it cost effective. The capacitance properties of carbon nanotubes as electrode materials for electrochemical capacitors are discussed. It has been shown that carbon nanotubes show moderate values of capacitance. In the form of a network, the material provides good charge propagation and can be used as a support and additive for different composite electrode materials.

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Acknowledgments

The work was presented at ABA-9 meeting in Brno. The authors acknowledge the financial support from the Ministry of Science and Higher Education (Poland) under Grants N N205 012334 and DS 31-155/2008.

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Authors and Affiliations

  1. Central Laboratory of Batteries and Cells, Institute of Non-Ferrous Metals Branch in Poznan, 61-362, Poznan, Forteczna 12, Poland

    Katarzyna Lota, Agnieszka Sierczyńska & Grzegorz Lota

  2. Institute of Chemistry and Technical Electrochemistry, Poznan University of Technology, 60-965, Poznan, Piotrowo 3, Poland

    Grzegorz Lota

Authors
  1. Katarzyna Lota
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  2. Agnieszka Sierczyńska
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  3. Grzegorz Lota
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Correspondence to Grzegorz Lota.

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Lota, K., Sierczyńska, A. & Lota, G. Synthesis and electrochemical properties of carbon nanotubes obtained by pyrolysis of acetylene using AB5 alloy. J Solid State Electrochem 14, 2209–2212 (2010). https://doi.org/10.1007/s10008-008-0782-1

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  • DOI: https://doi.org/10.1007/s10008-008-0782-1

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