A novel carbon-based solid-liquid duplex lubricating coating with super-high tribological performance for space applications

► A carbon-based solid-liquid duplex lubricating coatings was successfully fabricated. ► The carbon-based solid-liquid lubricating coating has excellent tribological performance. ► Such excellent tribological performance depends on the synergy lubricating mechanism. ► The carbon-based solid-liquid coating is considered as potential lubricating coating for space.