Metallic nanofoams have seen a broad variety of applications, including catalysts, hydrogen storage, as well as fuel cells. Additionally, applications of metallic nanofoam as an electrocatalyst have been fruitful; a nickel-iron nanofoam catalyst has proven to exhibit exceptional electrocatalytic performance, as well as water-splitting to isolate hydrogen atoms. Applications to the clean energy industry, specifically for lithium-ion batteries and other fuel cells, have been discussed as well.