Abstract: Compositing a gas adsorbant, macroporous object includes the immersion of a macroporous substrate into a charge stabilized suspension of nanoparticles that has been adapted for electrostatic repulsion. In this regard, the macroporous substrate includes a multiplicity of pores and demonstrates a compatibility with an adsorbant additive while lacking a repellant reaction to the charge stabilized solution. The nanoparticles are then positioned onto different walls of the pores resulting in the decoration of the macroporous structure with high surface volume materials. Finally, the macroporous substrate is removed from the suspension and dried. Thereafter, a gas adsorbant additive is introduced onto both surface portions of the macroporous substrate and also to the different walls of the pores of the macroporous substrate.