Thermal analysis and heat capacity study of metal-organic frameworks

Bin Mu, Krista S. Walton

Research output: Contribution to journalArticle

61 Citations (Scopus)

Abstract

Thermal stability and heat capacity of several metal-organic frameworks and their corresponding organic ligands have been investigated systematically using TGA-DSC technique. A simple notation system was created to present the local coordination environment around metal atoms in a secondary building unit (SBU). The heat capacity contributions of organic functional groups and SBUs were examined using the group-contribution method. Our results suggest that the thermal stability of MOFs is determined by the coordination number and local coordination environment instead of framework topology. Specific heat capacities (Cp) of all examined MOFs exhibit comparable values as other solids including carbon nanotubes, zeolites, and minerals. The molar heat capacity contributions of SBUs in MOFs indicate similar abnormal thermal behavior as negative thermal expansion of MOFs.

Original languageEnglish (US)
Pages (from-to)22748-22754
Number of pages7
JournalJournal of Physical Chemistry C
Volume115
Issue number46
DOIs
StatePublished - Nov 24 2011
Externally publishedYes

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Thermoanalysis
Specific heat
thermal analysis
Metals
specific heat
metals
Thermodynamic stability
thermal stability
Zeolites
Carbon Nanotubes
coordination number
zeolites
Functional groups
Minerals
thermal expansion
Carbon nanotubes
coding
topology
carbon nanotubes
Ligands

ASJC Scopus subject areas

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

Cite this

Thermal analysis and heat capacity study of metal-organic frameworks. / Mu, Bin; Walton, Krista S.

In: Journal of Physical Chemistry C, Vol. 115, No. 46, 24.11.2011, p. 22748-22754.

Research output: Contribution to journalArticle

Mu, Bin ; Walton, Krista S. / Thermal analysis and heat capacity study of metal-organic frameworks. In: Journal of Physical Chemistry C. 2011 ; Vol. 115, No. 46. pp. 22748-22754.
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