Abstract
In this review, the features of electron paramagnetic resonance (EPR) spectra of biomass chars prepared from single biopolymers (cellulose, pectin, lignin, etc.) to complex plant materials (tobacco) are summarized, and the interaction of biomass chars with air, O2 and/or H2O as detected by EPR is critically examined. The effects of inorganic components are emphasized for understanding the creation and annihilation of free radicals in biomass chars in the presence of O2 or air. While the EPR spectra can be difficult to interpret, the interactions observed reflect fundamental processes occurring in biomass chars during pyrolysis and combustion that may affect the chemical composition of biomass conversion products as well as cigarette emission.
Keywords: EPR, Biomass Char, Tobacco, biomass conversion products, cigarette emission
Mini-Reviews in Organic Chemistry
Title: The Reactivity of Free Radicals in Biomass Char Studied by EPR Spectroscopy
Volume: 8 Issue: 4
Author(s): Xiuzhi Gao and Jiwen Feng
Affiliation:
Keywords: EPR, Biomass Char, Tobacco, biomass conversion products, cigarette emission
Abstract: In this review, the features of electron paramagnetic resonance (EPR) spectra of biomass chars prepared from single biopolymers (cellulose, pectin, lignin, etc.) to complex plant materials (tobacco) are summarized, and the interaction of biomass chars with air, O2 and/or H2O as detected by EPR is critically examined. The effects of inorganic components are emphasized for understanding the creation and annihilation of free radicals in biomass chars in the presence of O2 or air. While the EPR spectra can be difficult to interpret, the interactions observed reflect fundamental processes occurring in biomass chars during pyrolysis and combustion that may affect the chemical composition of biomass conversion products as well as cigarette emission.
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Gao Xiuzhi and Feng Jiwen, The Reactivity of Free Radicals in Biomass Char Studied by EPR Spectroscopy, Mini-Reviews in Organic Chemistry 2011; 8 (4) . https://dx.doi.org/10.2174/157019311797440326
DOI https://dx.doi.org/10.2174/157019311797440326 |
Print ISSN 1570-193X |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-6298 |
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