GPa. This is attributed to the multifunctional nature of the hybrid system: 1) the incorporated nickel performed as an oxygen scavenger, protecting the sliding surface from unwanted oxidation, 2) the combination of a robust GnP tribofilm supported on a soft copper surface benefitted from the absence of oxygen, allowing for a long-lasting, stable lubricating phase to establish, and 3) the high-mechanical strength of the GnP nanosheets was observed, revealing that the GnP-tribofilm undergoes minimal changes in the rates of degradation at significantly higher loads. These results open up the field to durable, scalable and low-friction solid lubrication systems for use in mechanical engineering applications.