日本东北大学与日本物质材料研究机构合作开发出了完全不用稀有金属和稀土元素的高性能汽车尾气催化剂载体(纳米多孔NiCuMnO)。如果将该材料用于汽车尾气催化剂载体,可使材料成本降至原来的1%左右,有利于大量节约稀有金属和稀土。纳米多孔金属是指呈海绵状拥有纳米尺寸细孔的金属。通过用酸对固溶体合金进行选择性腐蚀, Tohoku University and Japan’s Materials Research Institute have developed a high-performance automotive exhaust catalyst carrier (nanoporous NiCuMnO) that completely eliminates the need for rare metals and rare earth elements. If the material is used for automobile exhaust catalyst carrier, the material cost can be reduced to about 1%, which is beneficial to save a lot of rare metals and rare earths. Nanoporous metal means a metal that has sponge-like nano-sized pores. By acid selective solid solution alloy corrosion,