Thermal decomposition mechanism and kinetics of Pd/SiO2 nanocomposites in air atmosphere

Yang, Jing; Hou, Haiyun

doi:10.1007/s10973-018-7673-1

Cited by 7 publications

(3 citation statements)

References 40 publications

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“…The difference between activation energy ( E a ) values and ∆H * reveals the likelihood of the pyrolysis reaction 93 . More specifically, a lower ∆H * value suggests that the product formation was easier, whereas a larger ∆H * value shows that the product formation was more complex 95 .…”

Section: Resultsmentioning

confidence: 99%

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Thermogravimetric and thermo-kinetic analysis of sugarcane bagasse pith: a comparative evaluation with other sugarcane residues

Najafi,

Golrokh Sani,

Sobati

2024

Sci Rep

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In this study, thermogravimetric and thermo-kinetic analysis of sugarcane bagasse pith (S.B.P.) were performed using a robust suite of experiments and kinetic analyses, along with a comparative evaluation on the thermo-kinetic characteristics of two other major sugarcane residues, namely sugarcane straw (S.C.S.) and sugarcane bagasse (S.C.B.). The thermogravimetric analysis evaluated the pyrolysis behavior of these residues at different heating rates in a nitrogen atmosphere. The Kissinger, advanced non-linear isoconversional (ANIC), and Friedman methods were employed to obtain effective activation energies. Moreover, the compensation effect theory (CE) and combined kinetic analysis (CKA) were used to determine the pre-exponential factor and pyrolysis kinetic model. Friedman's method findings indicated that the average activation energies of S.C.S., S.C.B., and S.B.P. are 188, 170, and 151 kJ/mol, respectively. The results of the ANIC method under the integral step Δα = 0.01 were closely aligned with those of the Friedman method. The CKA and CE techniques estimated ln(f(α)Aα) with an average relative error below 0.7%. The pre-exponential factors of S.C.S., S.C.B., and S.B.P. were in the order of 1014, 1012, and 1011 (s−1), respectively. From a thermodynamic viewpoint, positive ∆G* and ∆H* results provide evidence for the non-spontaneous and endothermic nature of the pyrolysis process, indicating the occurrence of endergonic reactions.

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Section: Resultsmentioning

confidence: 99%

“…∆G * is a parameter that reveals the amount of energy available from the feedstock throughout the pyrolysis process. It is also used to determine the spontaneity of the decomposition process, which is another essential factor 92 – 95 . Positive results for ∆ G * and ∆H * in the thermodynamic parameters of S.C.S., S.C.B., and S.B.P.…”

Section: Resultsmentioning

confidence: 99%

Thermogravimetric and thermo-kinetic analysis of sugarcane bagasse pith: a comparative evaluation with other sugarcane residues

Najafi,

Golrokh Sani,

Sobati

2024

Sci Rep

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“…The bands at 3342 and 1637 cm À1 are associated with H-O-H asymmetric vibration due to moisture in the material. 40 The sharp peak that appeared at 1096.77 cm À1 is ascribed to the asymmetric vibration of Si-O-Si. 41…”

Section: Characterizationmentioning

confidence: 99%

Transfer hydrogenation of ketone; an in situ approach toward an eco-friendly reduction

et al. 2022

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Recovery of calcium sulfide from Tunisian phosphogypsum and olive mill wastewaters: a thermogravimetric and kinetic study

Antar

Jemal

2021

J Therm Anal Calorim

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Thermal decomposition mechanism and kinetics of Pd/SiO2 nanocomposites in air atmosphere

Cited by 7 publications

References 40 publications

Thermogravimetric and thermo-kinetic analysis of sugarcane bagasse pith: a comparative evaluation with other sugarcane residues

Thermogravimetric and thermo-kinetic analysis of sugarcane bagasse pith: a comparative evaluation with other sugarcane residues

Transfer hydrogenation of ketone; an in situ approach toward an eco-friendly reduction

Recovery of calcium sulfide from Tunisian phosphogypsum and olive mill wastewaters: a thermogravimetric and kinetic study

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