Hybrid Ionic-Nano-Additives for Engine Lubrication to Improve Fuel Efficiency

Technical Report · Sat Mar 31 00:00:00 EDT 2018

DOI:https://doi.org/10.2172/1430828· OSTI ID:1430828

Zhao, Bin ^[1]; Dai, Sheng ^[1]; Qu, Jun ^[2]; Luo, Huimin ^[2]; Armstrong, Beth ^[2]; Martini, Ashlie ^[3]

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1. Univ. of Tennessee, Knoxville, TN (United States)
2. Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
3. Univ. of California, Merced, CA (United States)

We developed a new class of hybrid organic-inorganic/metallic nanoparticles (NPs) as additives for polyalphaolefin (PAO) for friction and wear reduction to improve engine energy efficiency. The hybrid additives were synthesized by using polymers, ionic liquid (IL)-containing polymers, organic ligands, or ILs to functionalize NPs. The tribological properties of these hybrid NPs or mixtures of NPs and ILs were studied by high contact stress ball-on-flat reciprocating sliding tests at 100°C. Significant reductions in friction and wear were achieved compared to PAO base oil. The lubrication mechanisms were elucidated by both experimental and simulation studies.

• Research Organization: Univ. of Tennessee, Knoxville, TN (United States); Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of California, Merced, CA (United States)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
• DOE Contract Number: EE0006925
• OSTI ID: 1430828
• Report Number(s): DOE-UTK-0006925-1
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
77 NANOSCIENCE AND NANOTECHNOLOGY
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY