Rare earth elements have wide applications in optics,electronics,magnetics,and catalysis due to the unique properties of 4f electrons.Many countries see them as having strategic values and consider them a"vault f...Rare earth elements have wide applications in optics,electronics,magnetics,and catalysis due to the unique properties of 4f electrons.Many countries see them as having strategic values and consider them a"vault for new materials".China has abundant reserves of rare earth elements and produces most of the world's supplies.With the quick development of the metal alloy,magnet,and fluorescent powder industries,there have been large usages of the middle and heavy rare earth metals,resulting in a large backlog of the light rare earth oxides(La,Ce,etc.).The research and development of rare earth catalytic materials will greatly promote the highly efficient use of these abundant rare earth elements,such as La and Ce.展开更多
文摘Rare earth elements have wide applications in optics,electronics,magnetics,and catalysis due to the unique properties of 4f electrons.Many countries see them as having strategic values and consider them a"vault for new materials".China has abundant reserves of rare earth elements and produces most of the world's supplies.With the quick development of the metal alloy,magnet,and fluorescent powder industries,there have been large usages of the middle and heavy rare earth metals,resulting in a large backlog of the light rare earth oxides(La,Ce,etc.).The research and development of rare earth catalytic materials will greatly promote the highly efficient use of these abundant rare earth elements,such as La and Ce.
