Duocel® aluminum foam is used as the heat exchange media and granulated chemical support matrix for the atmospheric carbon dioxide control system on the space shuttle and International Space Station. Amine powder granules can selectively absorb and desorb carbon dioxide at specific temperatures, but generate or require heat for the reaction. The high thermal conductivity foam matrix increases the response rate and efficiency of the system. The foam also electrically grounds the powder and disrupts its packing structure to improve gas flow and increase its lifetime.