Novel carbon nanotori additives for lubricants with superior anti-wear and extreme pressure properties

Laura Peña-Parás*, Demófilo Maldonado-Cortés, Oxana V. Kharissova, Karla Itzel Saldívar, Luisana Contreras, Patsy Arquieta, Brenda Castaños

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)


In this work, new lubricants were prepared with carbon nanotori dispersed in distilled water (DW). Carbon nanotori are multi-walled carbon nanoparticles with a toroidal shape. The load-carrying capacity of nanolubricants under extreme pressures (EP) and their anti-wear (AW) properties were characterized. Carbon nanotori demonstrated significant improvements in load-carrying capacity, and excellent anti-wear and friction reducing properties. Load-carrying capacity increased by up to 950% with 2.0 wt%. Wear mass loss and coefficient of friction (COF) were reduced by 96% and 76%, respectively, at the same concentration. These improvements can be attributed to their hollow multi-walled toroidal shape and high elastic modulus that enabled them to withstand the loads of the tests, thus limiting metal-metal contact.

Original languageEnglish
Pages (from-to)488-495
Number of pages8
JournalTribology International
Publication statusPublished - 1 Mar 2019

Bibliographical note

Funding Information:
This work was supported by Universidad de Monterrey DIECI FFI 2017 research grants no. 17524 and 18514 .

Publisher Copyright:
© 2018 Elsevier Ltd

Copyright 2019 Elsevier B.V., All rights reserved.

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films


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