Publication detail

Monitoring free radicals formation in the biodiesel oxidation reaction via electronic paramagnetic resonance

MANTOVANI, A. CHENDYNSKI, L. SALVIATO, A. BORSATO, D. SANTANA, V. DI MAURO, E.

Original Title

Monitoring free radicals formation in the biodiesel oxidation reaction via electronic paramagnetic resonance

Type

journal article in Web of Science

Language

English

Original Abstract

Biodiesel is an environmentally friendly alternative for petro-diesel. However, its degradation caused by radical oxidative reactions generates free radicals that damage the mechanics of vehicles. Spin trapping is a powerful resource for quantifying the short-lived and unstable free radicals liberated in these reactions. In this work, the formation of free radicals in samples of corn, soybean, and commercial biodiesel was investigated via electron paramagnetic resonance (EPR) using the spin trapping technique. The samples were incubated using the spin trap α-Phenyl-N-tert-butylnitrone (PBN) and analyzed via X-band EPR at room temperature and under heating at 70 °C. The experimental and simulated absorption spectra of the entrapped radicals allowed both identifying the presence of a derivative of the hydroxyl radical and characterizing the degradation stages of biodiesel. This result was discussed and compared with the accelerated heating method. The analysis allowed to establish EPR as a suitable, quick, and inexpensive way of probing the degradation of biodiesel in comparison with standard methods.

Keywords

EPR Spin trapping Degradation Radical reaction Oxidation

Authors

MANTOVANI, A.; CHENDYNSKI, L.; SALVIATO, A.; BORSATO, D.; SANTANA, V.; DI MAURO, E.

Released

15. 7. 2018

ISBN

1873-7153

Periodical

FUEL

Year of study

224

Number

1

State

United Kingdom of Great Britain and Northern Ireland

Pages from

255

Pages to

260

Pages count

6

BibTex

@article{BUT148610,
  author="Ana Carolina Gomes {Mantovani} and Letícia Thaís {Chendynski} and Aroldo {Salviato} and Dionísio {Borsato} and Vinicius Tadeu {Santana} and Eduardo {Di Mauro}",
  title="Monitoring free radicals formation in the biodiesel oxidation reaction via electronic paramagnetic resonance",
  journal="FUEL",
  year="2018",
  volume="224",
  number="1",
  pages="255--260",
  doi="10.1016/j.fuel.2018.03.114",
  issn="1873-7153"
}