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

Technical Report · Sat Mar 31 04:00:00 EDT 2018

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

Zhao, Bin ^[1]; Dai, Sheng ^[2]; Qu, Jun ^[3]; Luo, Huimin ^[3]; Armstrong, Beth ^[3]; Martini, Ashlie ^[4]

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1. Univ. of Tennessee, Knoxville, TN (United States); University of Tennessee Knoxville
2. Univ. of Tennessee, Knoxville, TN (United States)
3. Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
4. 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 Laboratory (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
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
77 NANOSCIENCE AND NANOTECHNOLOGY