Sequestration of carbon dioxide in natural and engineered porous materials is most viable option to mitigate the anthropogenic CO2. However, the fundamental understanding of confined fluids in matrix consisting of pores of varying length scale is still lacking. Fluids confined in nanometer sized pores exhibit properties significantly different from those of the corresponding bulk fluids at similar thermodynamic conditions. The presence of wall forces, and competing fluid-wall and fluid-fluid forces, can lead to interesting surface-induced effects. We propose neutron diffraction experiment using near and intermediate range order diffractometer (NIMROD) to study confinement effect on the interaction between CO2 molecules.In addition to this, this experiment will also give insights into the nature of interaction between CO2 molecules and pore wall.