Electrocatalytic Reduction of Carbon Dioxide to Methane

{ntb_intro_text}A room-temperature electrocatalytic process has been investigated as a means of removing carbon dioxide from air and restoring oxygen to the air. The process was originally intended for use in a spacecraft life-support system, but may also have potential utility in applications on Earth in which the methane and oxygen produced might be utilized or vented to the atmosphere.{/ntb_intro_text}