Detail publikace

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.

Originální název

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

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

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.

Klíčová slova

EPR Spin trapping Degradation Radical reaction Oxidation

Autoři

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

Vydáno

15. 7. 2018

ISSN

1873-7153

Periodikum

FUEL

Ročník

224

Číslo

1

Stát

Spojené království Velké Británie a Severního Irska

Strany od

255

Strany do

260

Strany počet

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"
}