2016 AIChE Annual Meeting

(653d) Selective Gas Adsorption on Functionalized H3btc and Di-Isophthalate Based Metal Organic Frameworks

Authors

Sasidhar Gumma, Cleveland State University
Sastri Chivukula, Indian Institute of Technology Guwahati

Selective Gas Adsorption on Functionalized
H3BTC and Di-Isophthalate
Based Metal Organic Frameworks

Prudhviraj Medikonda1,
Sastri Chivukula2 and Sasidhar Gumma1*

1 Department of Chemical Engineering, Indian
Institute of Technology Guwahati, India

2 Department of Chemistry, Indian
Institute of Technology Guwahati, India

E-mail: s.gumma@iitg.ernet.in

                Functionalization
of organic linkers towards metal organic frameworks (MOFs) containing open metal sites having more attention and interest
provides predictable pore size, surface area and more adsorption sites (Collins, 2009). The Cu-BTC
MOF is a widely studied adsorbent for gases separation and storage, but limited
work has been done to modify the H3BTC ligand or functionalize
Cu-BTC to optimize its properties for gas adsorption. On the other hand, organic linkers
containing double-bond functionalities have rarely been studied for gas
adsorption using MOFs and N containing MOFs are more selective for CO2
over N2, CH4 and CO (Liu et al. 2007, Belof et al. 2007). In this work we report the effect of functionalization by
comparing the gas adsorption properties of 1 with 2 and those of 3 with 4.  The role of the functional group and the
polarity of the gas will be discussed.

Description: C:\Users\Aceri3\Pictures\1.png

Description: C:\Users\Aceri3\Pictures\2.png

Description: C:\Users\Aceri3\Pictures\3.png

Description: C:\Users\Aceri3\Pictures\4.png

1

   2

         3

          4

                                  

Scheme 1: Structures of organic linkers H3BTC (1), H3IBTC (2),
H4AzoBTC (3) and H4 reduced AzoBTC (4) used in this work

                References

D. J. Collins, S.
Ma, H. C. Zhou. Hydrogen and methane
storage in Metal-Organic Frameworks:
Design and Application, Wiley-VCH, Weinheim 2009.

Y. Liu, J. F. Eubank, A.
J. Cairns, J. Eckert, V. Ch. Kravtsov, R. Luebke, M. Eddaoudi. Angew. Chem. Int. Ed. 46, 3278, 2007.

J. L. Belof, A. C. Stern,
M. Eddaoudi, B. Space. J. Am. Chem. Soc., 129,
15202, 2007.

Y. Cai, Y.
Zhang, Y. Huang, S. R. Marder, K. S. Walton. Cryst. Growth Des.,
12, 3709−3713, 2012.