Multifunctional microporous MOFs exhibiting gas/hydrocarbon adsorption selectivity, separation capability and three-dimensional magnetic ordering

Kunhao Li, David H. Olson, Jeong Yong Lee, Wenhua Bi, Ke Wu, Tan Yuen, Qiang Xu, Jing Li

Research output: Contribution to journalArticle

132 Citations (Scopus)

Abstract

Microporous materials [M3(HCOO)6] · DMF (M = Mn, Co, Ni) were synthesized solvothermally and structurally characterized by single crystal and powder X-ray diffraction methods. The metal network exhibits diamondoid connectivity and the overall framework gives rise to zigzag channels along the b axis where guest dimethylformamide molecules reside. The effective pore size of these channels is ∼5-6 Å. The materials feature high thermal stability and permanent porosity with relatively small pore diameters which are attributed to the extensive strong dative bonding between the metal centers and formate molecules. The title compounds exhibit interesting multi-fold gas adsorption and magnetic properties. The adsorption study of a series of alcohols, aromatics, and linear hydrocarbons revealed strong control of the adsorbent channel structures on their adsorption capacity and selectivity. The study also indicated possibility of using these materials for separation of close boiling chemicals (e.g., ethylbenzene and p-xylene) via pressure swing adsorption (PSA) process and molecules with different diffusion parameters via kinetic-based process. Three-dimensional spontaneous magnetic ordering was found in all three network structures investigated and at ground states they behave somewhat like soft magnets.

Original languageEnglish
Pages (from-to)2205-2214
Number of pages10
JournalAdvanced Functional Materials
Volume18
Issue number15
DOIs
Publication statusPublished - Aug 11 2008

Fingerprint

Hydrocarbons
Magnetization
formic acid
hydrocarbons
Gases
selectivity
Adsorption
Molecules
adsorption
Metals
porosity
gases
Microporous materials
Dimethylformamide
Gas adsorption
Ethylbenzene
Xylene
molecules
X ray powder diffraction
Adsorbents

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Science(all)
  • Condensed Matter Physics
  • Physics and Astronomy (miscellaneous)

Cite this

Multifunctional microporous MOFs exhibiting gas/hydrocarbon adsorption selectivity, separation capability and three-dimensional magnetic ordering. / Li, Kunhao; Olson, David H.; Lee, Jeong Yong; Bi, Wenhua; Wu, Ke; Yuen, Tan; Xu, Qiang; Li, Jing.

In: Advanced Functional Materials, Vol. 18, No. 15, 11.08.2008, p. 2205-2214.

Research output: Contribution to journalArticle

Li, Kunhao ; Olson, David H. ; Lee, Jeong Yong ; Bi, Wenhua ; Wu, Ke ; Yuen, Tan ; Xu, Qiang ; Li, Jing. / Multifunctional microporous MOFs exhibiting gas/hydrocarbon adsorption selectivity, separation capability and three-dimensional magnetic ordering. In: Advanced Functional Materials. 2008 ; Vol. 18, No. 15. pp. 2205-2214.
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