Methane storage in zeolite-like carbon materials

摘要: High specific surface area zeolite-like carbon materials (CZ) were synthesized by combining the hard template method with Chemical Vapor Deposition (CVD), using zeolite beta as solid and acetylene precursor, at different reaction temperatures (1023, 1073 1123 K). CZ characterized X-ray diffraction, Scanning Electron Microscopy nitrogen adsorption– desorption measurements. The nanoporous possess areas up to 1130 m 2 /g total pore volumes 0.75 mL/g while XRD data SEM images show successful replication of structure morphology particles into final materials. Methane storage properties (287, 298 313 K) have been investigated Sievert’s-type apparatus 3.5 MPa. exhibit a high reversible methane capacity, measured gravimetric uptake 8.0 wt% K MPa, much higher value compared pristine which shows adsorption capacity 1.5 same conditions. analysis obtained isotherm curves To 9th model grade homogeneity on sample porosity for all probed samples evaluation enthalpy low pressures reveals similar binding energy between molecules samples’ surfaces despite their long range order.