Hydrogen adsorption on lithium-functionalized calixarenes: A computational study

Natarajan Sathiyamoorthy Venkataramanan, Ryoji Sahara, Hiroshi Mizuseki, Yoshiyuki Kawazoe

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

In this work, density functional theory (DFT) was performed to investigate hydrogen storage in Li-functionalized p-tert-butyl calixarene (LTBC). Calculations based on DFT show that Li-functionalized calixarene significantly improves the average binding energy of hydrogen molecules. Each Li-functionalized calixarene molecules was found to hold four hydrogen molecules inside its cavity, yielding an approximate gravimetric density of ̃ 10 wt %. Furthermore, the ab initio molecular dynamics simulations show that LTBC molecules are stable up to 200 K. Finally, the pair distribution function calculated for LTBC with four hydrogen molecules inside the cavity shows that the hydrogen molecules are stable inside the cavity until 100 K.

Original languageEnglish
Pages (from-to)19676-19679
Number of pages4
JournalJournal of Physical Chemistry C
Volume112
Issue number49
DOIs
Publication statusPublished - 2008 Dec 11

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

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