In Situ FTIR Analysis of the Evolution of Functional Groups of Oil Shale During Pyrolysis

Low temperature oxidation of two different low rank coals was measured by in-situ FTIR. Curve-fitting analysis was employed to identify functional groups types of raw coals, and series technology was carried out on in-situ infrared spectrum of sample coals at low-temperature oxidation process to analyze the changes of main active functional groups with temperature. The results indicate that -CH3, -CH2, -OH, C=O, COOH are the main active functional groups in low rank coal. In the oxidation process, with temperature increasing, the methyl and methylene show the tendency of increase after decrease and then decrease, and all of hydroxyl, carboxyl and carbonyl group present the tendency of increase after decrease, there exists some differences among the main functional groups in the coal low-temperature process.

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An in situ FTIR step-scan photoacoustic investigation of kerogen and minerals in oil shale

Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy ◽

10.1016/j.saa.2011.10.078 ◽

2012 ◽

Vol 89 ◽

pp. 105-113 ◽

Cited By ~ 45

Author(s):

Kristin N. Alstadt ◽

Dinesh R. Katti ◽

Kalpana S. Katti

Keyword(s):

Oil Shale ◽

In Situ Ftir

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Effect of pyridine extraction on the pyrolysis of a perhydrous coal based on in-situ FTIR analysis

Journal of the Energy Institute ◽

10.1016/j.joei.2018.05.005 ◽

2019 ◽

Vol 92 (3) ◽

pp. 428-437 ◽

Cited By ~ 3

Author(s):

Zhiyuan Niu ◽

Guijian Liu ◽

Hao Yin ◽

Chuncai Zhou ◽

Dun Wu ◽

...

Keyword(s):

Ftir Analysis ◽

In Situ Ftir

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The effect of surface functional groups of nanosilica on the properties of polyamide 6/SiO2 nanocomposite

Polish Journal of Chemical Technology ◽

10.2478/pjct-2013-0039 ◽

2013 ◽

Vol 15 (3) ◽

pp. 20-24 ◽

Cited By ~ 6

Author(s):

Qijie Xu ◽

Fangfei Chen ◽

Xiaohong Li ◽

Zhijun Zhang

Keyword(s):

Functional Groups ◽

Crystallization Rate ◽

Polyamide 6 ◽

Ftir Analysis ◽

Amino Groups ◽

Surface Functional Groups ◽

Crystal Type ◽

Thermal Stability Of ◽

Effect Of Surface

Abstract The present study investigated the effect of the surface functional groups of nanosilica on the interfacial, crystallization, and thermal stability of polyamide 6/SiO2 (PA6/SiO2) nanocomposite, in which nanosilica was modified in situ with both 3-triethoxysilylpropylamine and 3-methacryloxypropyltrimethoxy silane¬ (KH-550 and KH-570). The FTIR analysis results showed the chemical bonding action between the reacting amino groups of nanosilica and end carboxyl groups of polyamide 6 enhanced with increasing the ratio of KH-550 and KH-570. The XRD spectrum indicated that the crystal structure of PA6/SiO2 nanocomposites tended to form α crystal type that was beneficial to an improvement of mechanical properties, and which was in agreement with the results of mechanical strength measurements. It was also found that crystallization temperature and crystallization rate of PA6/SiO2 nanocomposites were lower than that of neat polyamide 6.

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In-situ FTIR Analysis of CO2 Electrochemical Reduction at Copper Electrodes

ECS Meeting Abstracts ◽

10.1149/ma2012-02/14/1783 ◽

2012 ◽

Keyword(s):

Electrochemical Reduction ◽

Ftir Analysis ◽

In Situ Ftir ◽

Copper Electrodes

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In situ FTIR and Raman spectroelectrochemical characterization of graphene oxide upon electrochemical reduction in organic solvents

Physical Chemistry Chemical Physics ◽

10.1039/c5cp00942a ◽

2015 ◽

Vol 17 (18) ◽

pp. 12115-12123 ◽

Cited By ~ 36

Author(s):

Antti Viinikanoja ◽

Jussi Kauppila ◽

Pia Damlin ◽

Milla Suominen ◽

Carita Kvarnström

Keyword(s):

Graphene Oxide ◽

Electrochemical Reduction ◽

Functional Groups ◽

Organic Solvents ◽

Structural Rearrangement ◽

In Situ Ftir

Spectroelectrochemical methods confirmed structural rearrangement and loss of oxygen-containing functional groups of graphene oxide during the electrochemical reduction in organic solvents.

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