Composite monoliths between a PIM-1 matrix and commercially available activated carbon, AX21, particulate filler have been freeze cast to yield a series of 3D macrostructures exhibiting enhanced BET surface areas. An isotropic freeze casting methodology was developed to produce these monoliths from chloroform solutions, attaining both a practical size and geometry towards useful applications as a hydrogen store. The inclusion of 20% wt. AX21, was found to improve the BET surface areas, beyond that of the pristine PIM-1, from 762 to 849 m3 g-1, with scope to increase this further. Therefore, here reports the first clear cut evidence of a PIM-1 monolith of a reasonable stiffness (0.18 – 0.26 GPa) and of sufficient compressive strength (5.5 - 6.7 MPa) for safe integration with state-of-the-art Type IV hydrogen compression vessels.
|Date of Award||2019|
|Sponsors||Engineering and Physical Sciences Research Council|
|Supervisor||Tim Mays (Supervisor), Chris Bowen (Supervisor) & Andrew Burrows (Supervisor)|