The f-block elements, also known as the inner transition elements, are a group of elements found in the periodic table in the f-block. These elements include cerium (Ce), lanthanum (La), praseodymium (Pr), neodymium (Nd), promethium (Pm), samarium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb), and lutetium (Lu).
In the automotive field, some of the f-block elements have been used in various applications. For example, yttrium and cerium are used in catalytic converters to reduce the emissions of harmful pollutants such as nitrogen oxides and hydrocarbons. Dysprosium and neodymium are used in the magnets of electric vehicles to improve their energy efficiency. Lanthanum and cerium have also been used in the development of high-performance batteries for hybrid and electric vehicles.
In addition to these specific applications, many of the f-block elements have unique chemical and physical properties that make them attractive for use in various other technologies. For example, many of these elements have high melting points, good electrical conductivity, and strong magnetic properties, which makes them useful in the aerospace and electronics industries. However, the cost of these elements is usually higher than other more common elements.