RuS2

Ruthenium disulfide (RuS₂) is a transition metal dichalcogenide semiconductor with a pyrite crystal structure, belonging to the family of layered and three-dimensional metal sulfides used in emerging electronic and energy applications. While primarily a research material rather than a production-scale commodity, RuS₂ is investigated for photocatalysis, electrocatalysis (particularly hydrogen evolution and oxygen reduction), and next-generation thermoelectric devices due to its favorable electronic band structure and chemical stability. Engineers consider RuS₂ when designing catalytic systems that require high activity and durability, or when exploring beyond-silicon semiconductors for niche optoelectronic or energy conversion roles where conventional materials reach performance limits.