Surface heterogeneity analysis of MWCNT from methane adsorption isotherms for adsorbed natural gas storage

Author

Lee, Jae-Wook ; Kang, Hyun-Chul ; Shim, Wang-Geun ; Kim, Chan ; Suh, Soong-Hyuck ; Moon, Hee

Author_Institution

Dept. of Environ. & Chem. Eng., Seonam Univ., Namwon

Volume

1

fYear

2006

fDate

22-25 Oct. 2006

Firstpage

490

Lastpage

491

Abstract

Adsorption equilibria of methane on multi-walled carbon nanotube (MWCNT) were measured. For comparison of the adsorption properties, two zeolites (DAY and HSZ-320) were chosen. The isotherm data were obtained using a static volumetric method at 303.15 K, 313.15 K, 323.15 K and at pressures up to 3 MPa. Experimental data of zeolites and carbon nanotube were correlated by the Sips isotherm and the hybrid Langmuir-Sips equations, respectively. Isosteric enthalpies of adsorption were calculated as a function of surface loading.

Keywords

adsorption; carbon nanotubes; natural gas technology; adsorbed natural gas storage; adsorption equilibria; hybrid Langmuir-Sips equations; methane adsorption isotherms; multiwalled carbon nanotube; static volumetric method; surface heterogeneity analysis; surface loading; Amorphous materials; Carbon nanotubes; Chemical analysis; Chemical engineering; Equations; Fuel storage; Impurities; Moon; Natural gas; Vehicles; MWCNT; adsorption; heterogeneity; methane; natural gas storage;

fLanguage

English

Publisher

ieee

Conference_Titel

Nanotechnology Materials and Devices Conference, 2006. NMDC 2006. IEEE

Conference_Location

Gyeongju

Print_ISBN

978-1-4244-0540-4

Electronic_ISBN

978-1-4244-0541-1

Type

conf

DOI

10.1109/NMDC.2006.4388831

Filename

4388831