Do New Energy Vehicles Need Palladium?
1 Answers
New energy vehicles do not require the use of palladium. Introduction to Palladium: Palladium (Pd), one of the rarest precious metals in the world, is a platinum group element with the chemical symbol Pd. Palladium has extremely high purity, resembling platinum in appearance, and exhibits a natural silvery-white metallic luster that never fades. It is resistant to high temperatures, corrosion, and wear, and possesses ductility. In terms of purity, rarity, and durability, palladium can serve as a substitute for platinum, making it an ideal material for crafting jewelry and setting gemstones. Palladium, along with platinum, gold, and silver, is one of the international precious metals traded in spot and futures markets, and its price has historically surpassed that of platinum at times. Additionally, palladium is a widely used catalyst, appearing in industries ranging from petrochemicals to healthcare, and from automotive to watchmaking. Chemical Properties of Palladium: Palladium has stable chemical properties and is insoluble in hydrofluoric acid. It can resist phosphoric acid, perchloric acid, hydrochloric acid, and cold sulfuric acid but dissolves in aqua regia and hot concentrated sulfuric and nitric acids. Molten sodium hydroxide, sodium carbonate, and sodium peroxide can corrode palladium. At room temperature, palladium does not oxidize or lose its luster easily. When heated to around 400 degrees Celsius, an oxide layer forms on its surface. At room temperature, palladium remains stable in air and humid environments, but heating it to 800 degrees Celsius forms a palladium monoxide film on the surface. Palladium shares the same naturally pure white and dazzling brilliance as platinum, with a bright and vivid color. Its appearance is very similar to platinum, but palladium is generally less expensive. Due to its unique physical and chemical properties, the processing of palladium jewelry is more challenging than platinum, requiring high precision at every stage.