TY  - JOUR
AU  - Du, Guiru
AU  - Zhang, Yujuan
AU  - Yang, Guangbin
AU  - Song, Ningning
AU  - Zhang, Shengmao
PY  - 2026
TI  - Wrinkle-engineered self-dispersed MoS2/graphene hybrids for enhanced high-temperature lubrication
JO  - Friction
SN  - 2223-7690
SP  - 9441164
VL  - 14
IS  - 7
AB  - Self-dispersed graphene crumpled balls (GCBs) demonstrate exceptional tribological performance as lubricant additives at elevated temperatures. However, the critical relationships among unique wrinkle architectures, internal porosity characteristics, and resultant dispersion stability/friction-reduction mechanism remain insufficiently explored. In particular, the synergistic effects arising from structural hierarchy and surface chemistry modulation in high-temperature lubrication systems require systematic investigation. Herein, we propose a wrinkle engineering strategy guided by Stokes’ law to fabricate surface modifier-free GCBs with programmable three-dimensional geometries. Systematic investigations reveal that the degree of crumpling on the GCBs critically dominates the dispersion characteristics and the interlayer shearing resistance. When molybdenum disulfide quantum dots (MoS2 QDs) are deposited on GCBs, a more consistent and robust tribochemical reaction film can form on the friction interface in response to severe damage. Compared with commercial high-temperature chain oil (CH-27Q), this complex achieves an over 2-fold increase in anti-friction efficiency. Overall, this study establishes a structure–performance paradigm for developing autonomous lubrication systems under extreme thermal conditions.
UR  - https://doi.org/10.26599/FRICT.2025.9441164
DO  - 10.26599/FRICT.2025.9441164