How is neodymium trifluoride (CAS: 13709-42-7) typically synthesized?

Neodymium trifluoride can be synthesized by heating neodymium oxide with fluorine gas or by reacting neodymium metal with hydrofluoric acid. Common methods include the fluorination of neodymium oxide or reduction of neodymium tetrafluoride with hydrogen or carbon. The yield and selectivity of these reactions are influenced by the reaction conditions and the choice of catalysts.