Theoretical study on porphyrin based covalent organic polyhedra as a hydrogen storage

Daejin Kim, Dong Hyun Jung, Hyein Guk, Sang Soo Han, Noejung Park, Kihang Choi, Seung Hoon Choi

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

We introduce a new covalent organic polyhedron (COP) containing porphyrinyl groups. The porphyrin based COP (PCOP) is designed by modeling and simulation using 6 tetraaldehyde molecules and 8 triamine molecules combined by 24 imine bonds. Probable molecular crystal structures of the modeled PCOP are suggested by the simulated annealing Monte Carlo simulation method. We found that the predicted crystal structures show large surface areas up to over 6000 m 2/g and the surface area depends on how to pack PCOP molecules and the resulting pore structure. Grand canonical Monte Carlo simulations predict the hydrogen uptakes of these polymorphs of PCOP and the values are from 98 to 262 mg/g for gravimetric uptake and from 45 to 50 kg/m3 for volumetric uptake at 77 K. Hydrogen uptakes of PCOP crystals are comparable to the best records of metal-organic frameworks (164.1 mg/g for NU-100 and 176 mg/g for MOF-210 at 77 K). Hence, PCOP is expected to be applicable to hydrogen storage.

Original languageEnglish
Pages (from-to)6234-6240
Number of pages7
JournalInternational Journal of Hydrogen Energy
Volume38
Issue number14
DOIs
Publication statusPublished - 2013 May 10

Fingerprint

Hydrogen storage
Porphyrins
polyhedrons
porphyrins
hydrogen
Molecules
Crystal structure
Molecular crystals
molecules
Hydrogen
crystal structure
simulation
Chemical bonds
simulated annealing
Pore structure
Simulated annealing
Polymorphism
Molecular structure
imines
porosity

Keywords

  • Covalent-organic polyhedra
  • Density functional theory
  • Hydrogen storage
  • Monte Carlo simulation
  • Porphyrin
  • Schiff base

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

Cite this

Theoretical study on porphyrin based covalent organic polyhedra as a hydrogen storage. / Kim, Daejin; Jung, Dong Hyun; Guk, Hyein; Han, Sang Soo; Park, Noejung; Choi, Kihang; Choi, Seung Hoon.

In: International Journal of Hydrogen Energy, Vol. 38, No. 14, 10.05.2013, p. 6234-6240.

Research output: Contribution to journalArticle

Kim, Daejin ; Jung, Dong Hyun ; Guk, Hyein ; Han, Sang Soo ; Park, Noejung ; Choi, Kihang ; Choi, Seung Hoon. / Theoretical study on porphyrin based covalent organic polyhedra as a hydrogen storage. In: International Journal of Hydrogen Energy. 2013 ; Vol. 38, No. 14. pp. 6234-6240.
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