Conductivity enhancement of MOFs via development of MOFpolymer composite material
AssigneeKing Fahd University of Petroleum and Minerals
InventorsAbdul Malik P. Peedikakkal, Abdul-Rahman Al-Betar, Ammar Hussain Al-Mousa
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Abstract
A method for enhancing the conductivity of MOF-5 by the development of an MOF-5 polymer composite material. The composite material incorporates a conductive polymer, preferably polyaniline, in the solvo-thermal synthesis pathway of MOF-5. The electrically conductive MOF-5 composite exhibits electric conductivity three orders of magnitude higher than that of MOF-5 while maintaining the crystallinity, robustness, and thermal stability of MOF-5.
Claims4
An electrically conductive composite material, comprising:
- polyaniline and
- a metal-organic framework having the formula Zn4O(BDC)3, where BDC is 1,4-benzenedicarboxylate and the metal-organic framework is MOF-5;
- wherein the polyaniline is present in the pores of the MOF-5;
- wherein the electrically conductive composite material has:
- an electric conductivity of about 4.69×10−9 S cm−1,
- an ionic resistance of about 100 ohms, and
- a minor powder x-ray diffraction peak in the range of 5° to 10°.
An electrically conductive composite material, comprising:
- polyaniline and a metal-organic framework, wherein the metal-organic framework is MOF-5;
- wherein the polyaniline is integrated into pores of the MOF-5 and the MOF-5 has a formula Zn4O(BDC)3, where BDC is 1,4-benzenedicarboxylate;
- wherein the electrically conductive composite material has:
- an electric conductivity of about 4.69×10−9 S cm−1,
- an ionic resistance of about 100 ohms, and
- a minor powder x-ray diffraction peak in the range of 5° to 10°;
- wherein the electrically conductive composite material is obtained by:
- mixing, by sonification, a first solution of polyaniline and dimethylformamide to form a second solution;
- mixing, by sonification, the second solution with 1,4-dicarboxylic acid;
- mixing, by sonification, a third solution of zinc nitrate hexahydrate with dimethylformamide;
- mixing, by sonification, the second and third solutions to form a fourth solution;
- solvo-thermal processing the fourth solution at a temperature in the range of 80-120° C. for a time in the range 12-48 hours;
- cooling the fourth solution;
- and
- filtering and washing the cooled fourth solution to isolate the electrically conductive composite material.
Dependencies are inferred from the claim text.