@article{Choi2025, 
author = {Mingi Choi and Ivan V. Vlassiouk and Won-Seok Kim and Jeong Han Kim and Anirudha V. Sumant and Ji-Woong Jang and Junho Suh and Young-Jun Jang and Songkil Kim},
title = {Graphene oxide gluing layer enabling macroscale tribology applications of pristine graphene},
year = {2025},
journal = {Friction},
volume = {13},
number = {10},
pages = {9441092},
keywords = {graphene oxide (GO), pristine graphene (PG), solid lubrication, transfer layer, macroscale tribology},
url = {https://www.sciopen.com/article/10.26599/FRICT.2025.9441092},
doi = {10.26599/FRICT.2025.9441092},
abstract = {In recent studies of two-dimensional (2D) nanomaterial-based solid lubricants, the importance of durability has been emerging for real engineering-scale applications. To achieve this, a transfer layer formation is essential to prevent the wear of the mechanical systems. However, it has been challenging for pristine graphene (PG) to induce a material transfer due to chemical inertness. In this study, we suggest an easy-to-process strategy to promote the huge material transfer of the PG onto the counterpart contacting material. We utilized graphene oxide (GO) as a gluing layer between the PG film and the counterpart contact surface to realize the superior tribological performance. The high interaction energy of the GO from its functional groups makes a contribution to the material transfer of PG, which is unveiled by a systematic analysis of the counterpart contact surface and the wear track. The huge solid transfer layer not only makes a wear-resistant contact interface between the transfer layer and the underlying film by densification and oxidation, but also reduces surface interaction energies, finally resulting in a significant improvement in durability.}
}