The main use of rhodium is as an anti-wear coating and catalyst for high-quality scientific instruments, and rhodium-platinum alloy is used to produce thermocouples. It is also used for plating on car headlight reflectors, telephone repeaters, pen tips, etc. The automotive industry is the largest user of rhodium. At present, the main use of rhodium in automobile manufacturing is automobile exhaust catalyst. Other industrial sectors that consume rhodium are glass manufacturing, dental alloy manufacturing, and jewelry products. With the continuous development of fuel cell technology and the gradual maturity of fuel cell vehicle technology, the amount of rhodium used in the automotive industry will continue to increase.

Proton exchange membrane fuel cells have the advantages of zero emissions, high energy efficiency, and adjustable power. They are considered to be the ideal driving power source for electric vehicles in the future. However, the existing technology requires the use of a large amount of precious metal platinum nanocatalysts to maintain its efficient operation.
Some researchers have developed a proton exchange membrane fuel cell cathode catalyst with excellent catalytic activity and stability, using platinum nickel rhodium nano xian
The new platinum nickel rhodium ternary metal nanowire catalysts have significantly improved in terms of quality activity and catalytic stability, showing excellent performance and application potential.