Tribocatalytic Reaction Enabled by TiO 2 Nanoparticle for MoDTC-Derived Tribofilm Formation at ta-C/Steel Contact. - Matsukawa, Daiki; Park, Jae-Hyeok; Lee, Woo-Young; Tokoroyama, Takayuki; Kim, Jae-Il; Ichino, Ryoichi; Umehara, Noritsugu (Coatings (2079-6412), 2024)