Frontiers in Energy Research (Oct 2014)

Electrochemical Hydrogen Storage in a Highly Ordered Mesoporous Carbon

  • Dan eLiu,
  • Chao eZeng,
  • Haolin eTan,
  • Dong eZheng,
  • Rong eLi,
  • Deyu eQu,
  • zhizhong eXie,
  • Jiahen eLei,
  • Liang eXiao,
  • Deyang eQu

DOI
https://doi.org/10.3389/fenrg.2014.00042
Journal volume & issue
Vol. 2

Abstract

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A highly order mesoporous carbon has been synthesized through a strongly acidic, aqueous cooperative assembly route. The structure and morphology of the carbon material were investigated using TEM, SEM and nitrogen adsorption-desorption isotherms. The carbon was proven to be meso-structural and consisted of graphitic micro-domain with larger interlayer space. AC impedance and electrochemical measurements reveal that the synthesized highly ordered mesoporous carbon exhibits a promoted electrochemical hydrogen insertion process and improved capacitance and hydrogen storage stability. The meso-structure and enlarged interlayer distance within the highly ordered mesoporous carbon are suggested as possible causes for the enhancement in hydrogen storage. Both hydrogen capacity in the carbon and mass diffusion within the matrix were improved.

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