稀土催化专刊前言(英文)

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Rare earth elements have wide applications in optics, elec‐tronics, magnetics, and catalysis due to the unique properties of4f electrons. Many countries see them as having strategic val‐ues 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, Rare earth elements have wide applications in optics, elec-tronics, magnetics, and catalysis due to the unique properties of 4f electrons. Many countries see them as having strategic val-ues and consider them a “vault for new materials.” 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,
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