LAUSR

Abstract Ultra-performance non-compact Graphene/Carbon Hollow Fibers/Graphene ∼(G/CHF/G) junction like membrane was successfully fabricated by chemical vapor deposition (CVD) of graphene on the two sides of carbon fibers pellet of with thickness of 6 mm. Mono-, bi-junction and tri-units junction membranes were loaded in column with specific parameters suitable for junction size. The column was made from special glass with controlled in/outlet stopper. The adsorption capacities of Mono-, bi-junction and tri-units junction like membranes were measured from adsorption isotherm at 25 °C and found to be 76, 93 and 117 mmol. CO2/gm G/CHF/G respectively. These promising results are attributable to G/CHF/G junction like membrane has ultra-high surface area coupled with mesoporous structure. Furthermore compactness of graphene layers with thickness average 67.5 A on the surface of carbon hollow fibers act as true membrane reinforced by adsorption on cavities of carbon hollow fibers.