The secondary recycling and utilization of precious metals used to be so important

Precious metals (Rh), platinum (Pt), palladium (Pd), ruthenium Ru), iridium (Ir), and osmium (Os) are widely used as strategic resource reserves. Unique chemical and physical properties. The application of precious metals can deeply participate in multiple high-tech fields such as aviation, navigation, rockets, atomic energy, microelectronics technology, as well as chemistry, optics, lubricating materials, instruments and meters, petrochemicals, automotive exhaust purification, biomedicine, etc.

With the continuous integration of nanotechnology and deep technology in processing technology, the application scope of precious metals is expanding, especially in the field of chemical catalysis, playing an irreplaceable role. Almost all of them are precious.

Metals can be used as catalysts, but the most commonly used ones are platinum recovery, palladium recovery, rhodium recovery, silver recovery, and ruthenium recovery, among which platinum recovery and rhodium recovery are more commonly used. Precious metal particles are easily adsorbed. The active substance on its surface promotes the formation of intermediate "active compounds". They can be widely used as important catalyst materials in the chemical industry. Industry, biocatalysis, and environmental protection, due to their high degree of decomposition activity. Precious metal catalysts play a crucial role in the petrochemical industry, accelerating chemical reaction rates without participating in the reaction itself. In addition, they are often used in hydrogenation, dehydrogenation, oxidation, reduction, isomerization, aromatization, cracking, synthesis and other reactions. With the development of technology, precious metal catalysts have begun to be used in emerging environmental and energy fields.

As a clean energy carrier, hydrogen is considered a very promising renewable energy source due to its high energy density, zero carbon emissions, and abundance of rare earth elements. However, slow reaction kinetics. The precipitation of hydrogen at the cathode and overpotential oxygen at the anode is becoming the main obstacles to large-scale electrolysis. Therefore, high-performance electrocatalysts are needed to reduce overpotential, improve the efficiency of overpotential water splitting, and precious metal (PGMS) catalysts have been proven.