Variation in the FTIR spectra of a biomass under impregnation, carbonization and oxidation conditions

El-Hendawy, Abdel-Nasser A.

doi:10.1016/j.jaap.2005.05.004

Cited by 295 publications

(162 citation statements)

References 29 publications

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“…Although the identification of charcoal in soil is difficult, there is now evidence for the presence of charred material in soils thought FTIR spectroscopy Nocentini, et al, 2010;Vergnoux, et al, 2011). FTIR spectra of charcoal in soil are dominated by a broad band between 3800 and 3000 cm -1 (O-H and/or N-H vibrational modes) with two shoulders at 2933 and 2850 cm -1 (C-H stretching, in alkyl groups such as CH 3 and CH 2 groups), as described in El-Hendawy (2006). Usually, also the band at 1715 cm -1 appears as a shoulder (CO stretching in COOH groups bound to aromatic rings, Nocentini et al (2010)).…”

Section: Charred Organic Matter Characterizationmentioning

confidence: 99%

Recent applications of vibrational mid-Infrared (IR) spectroscopy for studying soil components: a review

Tinti¹,

Tugnoli²,

Bonora³

et al. 2015

j. cent. eur. agric.

191

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The present review highlights the recent applications of mid-infrared spectroscopy and in particular of diffuse reflectance spectroscopy (DRIFT) and attenuated total reflectance (ATR) and processing methods (e.g., deconvolution, derivative and chemometrics) to rapidly provide valuable information on soil composition and organic geochemistry. Research has demonstrated that both DRIFT and ATR techniques can be considered useful tools for the analysis of a large number of soil samples, giving not only typical spectral patterns but permitting an accurate prediction of quantitative parameters such as, e.g., total carbon, total nitrogen, C/N ratio, lignin, dissolved OC, carbonyl-C, aromatic-C, O-alkyl-C, and alkyl-C contents. Based on literature results, infrared spectroscopy can be recognized as one of the most promising analytical techniques for investigating soil science.

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Section: Charred Organic Matter Characterizationmentioning

confidence: 99%

Recent applications of vibrational mid-Infrared (IR) spectroscopy for studying soil components: a review

Tinti¹,

Tugnoli²,

Bonora³

et al. 2015

j. cent. eur. agric.

191

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“…There are growing interests of developing efficient biomass thermal conversion technologies worldwide to combat climate change and provide the solutions for current energy crisis. Biomass thermochemical conversion processes including combustion, gasification and liquefaction are employed for power generation [2] and production of liquid biofuels [3][4][5], chemicals [6,7] and charcoal [1,[8][9][10][11] which can be used as activated carbon [12] for absorbent as well as domestic fuels. A good understanding of the decomposition of biomass during thermochemical conversion is important for developing efficient processing technology.…”

Section: Introductionmentioning

confidence: 99%

Kinetic study on thermal decomposition of woods in oxidative environment

Shen

Luo

et al. 2009

Fuel

259

137

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a b s t r a c tThe purpose of this work is to gain knowledge on kinetics of biomass decomposition under oxidative atmospheres, mainly examining effect of heating rate on different biomass species. Two sets of experiments are carried out: the first set of experiments is thermal decomposition of four different wood particles, namely aspens, birch, oak and pine under an oxidative atmosphere and analysis with TGA; and the second set is to use large size samples of wood under different heat fluxes in a purpose-built furnace, where the temperature distribution, mass loss and ignition characteristics are recorded and analyzed by a data post-processing system. The experimental data is then used to develop a two-step reactions kinetic scheme with low and high temperature regions while the activation energy for the reactions of the species under different heating rates is calculated. It is found that the activation energy of the second stage reaction for the species with similar constituent fractions tends to converge to a similar value under the high heating rate.

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“…By the way, subsequent to diminishing the intensity of olefinic C-H stretching bands, new strong band appeared in the spectra at 1475 cm -1 in addition to a weak band at 843 cm -1 . The former band could be assigned to aromatic C=C stretching vibration, while the latter was to aromatic C-H bending one [25]. This result suggested that the framework of organic matrix in precursor was considerably changed after the long time heat-treatment below the combustion temperature.…”

Section: Formation Of Lafeo3 Nanoparticlesmentioning

confidence: 87%

Superparamagnetic Behaviour and Induced Ferrimagnetism of LaFeO3 Nanoparticles Prepared by a Hot-Soap Technique

Fujii¹,

Matsusue²,

Takada³

2012

Advanced Aspects of Spectroscopy

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Variation in the FTIR spectra of a biomass under impregnation, carbonization and oxidation conditions

Cited by 295 publications

References 29 publications

Recent applications of vibrational mid-Infrared (IR) spectroscopy for studying soil components: a review

Recent applications of vibrational mid-Infrared (IR) spectroscopy for studying soil components: a review

Kinetic study on thermal decomposition of woods in oxidative environment

Superparamagnetic Behaviour and Induced Ferrimagnetism of LaFeO3 Nanoparticles Prepared by a Hot-Soap Technique

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