Kinetic parameters from thermogravimetric data. II.

Coats, A. W.; Redfern, J. P.

doi:10.1002/pol.1965.110031106

Cited by 364 publications

(143 citation statements)

References 5 publications

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“…The approximations for p(x) most commonly used in the determination of the activation energy are those proposed by Coats and Redfern, 3,4 Doyle, [5][6][7] Horowitz and Metzger, 8 MacCallum and Tanner, 9,10 Gyulai and Greenhow, 11,12 and Van Krevelen. 13 All these approximations have been obtained either by simplifications of the series expressions or in an empirical way.…”

Section: Consists Of Two Terms Ie F(t) and F(α) Being F(t) A Funcmentioning

confidence: 99%

“…2000-2004. In these last five years, the approach with more citations has been that of Coats and Redfern 3,4 with about 590 citations, followed by those of Horowitz and Metzner 8 and Doyle [5][6][7] with 230 and 102 citations, respectively (information on the number of citations have been obtained from ISI Web of Science data base). Nevertheless, independently of the approximation used, every g() leads to a high linear correlation coefficient and, therefore, it is not possible to discriminate the kinetic model from a single experimental curve.…”

Section: Consists Of Two Terms Ie F(t) and F(α) Being F(t) A Funcmentioning

confidence: 99%

“…The number of publications where these integral methods are used for determining activation energies is vast. Thus, about 4500 citations can be found in the literature for the original papers [3][4][5][6][7][8][9][10][11][12][13] where these equations are proposed. Besides, the popularity of these integral methods has not decreased, as indicated by their more than 1300 citations just in the last years, i.e.…”

Section: Consists Of Two Terms Ie F(t) and F(α) Being F(t) A Funcmentioning

confidence: 99%

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Kinetic analysis of solid‐state reactions: Precision of the activation energy calculated by integral methods

Pérez‐Maqueda

Jiménez

Criado

2005

Int J of Chemical Kinetics

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The integral methods are extensively used for the kinetic analysis of solid-state are very popular for determining activation energies. In fact, we have found more than 4500 citations (1300 in the last five years) for the papers were these methods were proposed. However, a systematic analysis of the errors involved in the determination of the activation energy from these methods is still missing. A comparative study of the precision of the activation energy as a function of x and T computed from the different integral methods has been carried out.

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Section: Consists Of Two Terms Ie F(t) and F(α) Being F(t) A Funcmentioning

confidence: 99%

Section: Consists Of Two Terms Ie F(t) and F(α) Being F(t) A Funcmentioning

confidence: 99%

Section: Consists Of Two Terms Ie F(t) and F(α) Being F(t) A Funcmentioning

confidence: 99%

See 1 more Smart Citation

Kinetic analysis of solid‐state reactions: Precision of the activation energy calculated by integral methods

Pérez‐Maqueda

Jiménez

Criado

2005

Int J of Chemical Kinetics

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“…Matching ratio (β) of toughness of commercial plastic material with change with the thermal fatigue conditions and hence equation (6) given below defines the percentage of relative difference of matching ratio (PRDMR,  %) as a new parameter to determine the degree of degradation. The equation (7) calculates the percentage of weight loss (α %) where, W o is initial mass, Wt is the mass at time "t" and W f is the final mass [7][8][9][10][11][12]. The equation (8) …”

Section: Theorymentioning

confidence: 99%

Mathematical Model Development Using Commercial Polypropylene to Evaluate Degradation of Plastic Under the Thermal Fatigue Cycles; Modelling approach.

Rohitha¹

2017

IOSR JAP

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Recycling of waste plastics is of great interest in solid waste young modules. Matching ratio of toughness (β) is defined as a new index to calculate the ratio of toughness calculated from regression equation and parameters of stress-strain curve. The percentage of relative difference of matching ratio (  %) of toughness is defined as another index. It is defined with respect to the matching ratio of commercial polypropylene samples without exposing to the thermal fatigue conditions ( 0 )

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“…We applied the Coats-Redfern approximation [14,15] of the temperature integral in Eq. 2, which gives the following equations [16] …”

Section: Arrhenius-type Equationmentioning

confidence: 99%

Analysis of the thermal decomposition of azo-peroxyesters by Arrhenius-type and three-parameter equations

Hefczyc

Siudyga

Zawadiak

et al. 2011

J Therm Anal Calorim

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Thermogravimetric analysis of azo-peroxyesters revealed two decomposition stages on TG curves. Molecular nitrogen is released in the first stage and carbon dioxide in the second. Fitting the thermogravimetric data by means of the three-parameter model and a classic one based on an Arrhenius-type kinetic equation showed that the former approach satisfactorily describes the process within the wide range of the extent of decomposition. It was found that two coefficients of the three-parameter equation are related to the temperature of maximum reaction rate. One of the coefficients of the three-parameter equation is also related to the activation energy. The compounds investigated can be grouped with respect to their kinetic characteristics, structure and stage of decomposition.

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Kinetic parameters from thermogravimetric data. II.

Cited by 364 publications

References 5 publications

Kinetic analysis of solid‐state reactions: Precision of the activation energy calculated by integral methods

Kinetic analysis of solid‐state reactions: Precision of the activation energy calculated by integral methods

Mathematical Model Development Using Commercial Polypropylene to Evaluate Degradation of Plastic Under the Thermal Fatigue Cycles; Modelling approach.

Analysis of the thermal decomposition of azo-peroxyesters by Arrhenius-type and three-parameter equations

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