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Title: Synergistic Effects Between Phosphonium-Alkylphosphate Ionic Liquids and Zinc Dialkyldithiophosphate (ZDDP) as Lubricant Additives

Journal Article · · Advanced Materials
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  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science and Technology Div.
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Energy and Transportation Science Div.
  3. Shell Global Solutions, Houston, TX (United States)
  4. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Chemical Sciences Div.

Unique synergistic effects between phosphonium-alkylphosphate ionic liquids and zinc dialkyldithiophosphate (ZDDP) are discovered when used together as lubricant additives, resulting in significant friction and wear reduction along with distinct tribofilm composition and mechanical properties. The synergism is attributed to the 30-70× higher-than-nominal concentrations of hypothetical new compounds (via anion exchange between IL and ZDDP) on the fluid surface/interface.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1212355
Journal Information:
Advanced Materials, Vol. 27, Issue 32; ISSN 0935-9648
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 148 works
Citation information provided by
Web of Science

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Tribo‐Induced Structural Transformation and Lubricant Dissociation at Amorphous Carbon–Alpha Olefin Interface journal September 2018
Synergistic effects of phosphate ionic liquids and octadecylaminen‐oleoyl sarcosinate as lubricating grease additives journal March 2019
Reactivity of oil‐soluble IL with silicon surface at elevated temperature journal March 2019
Alkyl phosphate modified graphene oxide as friction and wear reduction additives in oil journal December 2018
High-Performance Heterocyclic Friction Modifiers for Boundary Lubrication journal February 2018
Carbon-based tribofilms from lubricating oils journal August 2016
Tribotronic control of friction in oil-based lubricants with ionic liquid additives journal January 2016
Facile synthesis of photoluminescent inorganic–organic hybrid carbon dots codoped with B and N: towards an efficient lubrication additive journal January 2017
Tribochemistry and thermo-oxidative stability of halogen-free ionic liquids journal January 2017
In situ fabrication of carbon dots-based lubricants using a facile ultrasonic approach journal January 2019
Friction and Wear Reduction Mechanisms of the Reciprocating Contact Interfaces Using Nanolubricant Under Different Loads and Speeds journal April 2018
The Synergistic Antiwear Performances of Organic Titanium Compounds Containing Sulfur with Borate Ester Additive journal November 2018
Non-halogenated Ionic Liquid Dramatically Enhances Tribological Performance of Biodegradable Oils journal February 2019
Understanding Tribofilm Formation Mechanisms in Ionic Liquid Lubrication journal August 2017