A consideration of errors and accuracy in the isoconversional methods

Zhiming Gao; Masahiro Nakada; Iwao Amasaki

doi:10.1016/S0040-6031(00)00760-7

A consideration of errors and accuracy in the isoconversional methods

Zhiming Gao^*, Masahiro Nakada, Iwao Amasaki

^*Corresponding author for this work

Chiba Institute of Technology

Research output: Contribution to journal › Article › peer-review

123 Citations (Scopus)

Abstract

The conventional isoconversional plots, 1n β versus 1/T and 1n(β/T²) versus 1/T, have some errors in calculating the activation energy due to the use of an approximate value of p(x). In order to obtain the 'exact' value of activation energy of a reaction, an iterative procedure has been established after the ratios, H(x) and h(x), were introduced to determine 'exact' p(x) instead of the approximate values of p(x) used in the conventional isoconversional plots. The iterative procedure is wide applicable, no matter how little or how great the E/RT value of the reaction is.

Original language	English
Pages (from-to)	137-142
Number of pages	6
Journal	Thermochimica Acta
Volume	369
Issue number	1-2
DOIs	https://doi.org/10.1016/S0040-6031(00)00760-7
Publication status	Published - 22 Mar 2001
Externally published	Yes

Keywords

Activation energy
Isoconversional methods
Iterative procedure
Kinetics
Non-isothermal

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10.1016/S0040-6031(00)00760-7

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title = "A consideration of errors and accuracy in the isoconversional methods",

abstract = "The conventional isoconversional plots, 1n β versus 1/T and 1n(β/T2) versus 1/T, have some errors in calculating the activation energy due to the use of an approximate value of p(x). In order to obtain the 'exact' value of activation energy of a reaction, an iterative procedure has been established after the ratios, H(x) and h(x), were introduced to determine 'exact' p(x) instead of the approximate values of p(x) used in the conventional isoconversional plots. The iterative procedure is wide applicable, no matter how little or how great the E/RT value of the reaction is.",

keywords = "Activation energy, Isoconversional methods, Iterative procedure, Kinetics, Non-isothermal",

author = "Zhiming Gao and Masahiro Nakada and Iwao Amasaki",

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T1 - A consideration of errors and accuracy in the isoconversional methods

AU - Gao, Zhiming

AU - Nakada, Masahiro

AU - Amasaki, Iwao

PY - 2001/3/22

Y1 - 2001/3/22

N2 - The conventional isoconversional plots, 1n β versus 1/T and 1n(β/T2) versus 1/T, have some errors in calculating the activation energy due to the use of an approximate value of p(x). In order to obtain the 'exact' value of activation energy of a reaction, an iterative procedure has been established after the ratios, H(x) and h(x), were introduced to determine 'exact' p(x) instead of the approximate values of p(x) used in the conventional isoconversional plots. The iterative procedure is wide applicable, no matter how little or how great the E/RT value of the reaction is.

AB - The conventional isoconversional plots, 1n β versus 1/T and 1n(β/T2) versus 1/T, have some errors in calculating the activation energy due to the use of an approximate value of p(x). In order to obtain the 'exact' value of activation energy of a reaction, an iterative procedure has been established after the ratios, H(x) and h(x), were introduced to determine 'exact' p(x) instead of the approximate values of p(x) used in the conventional isoconversional plots. The iterative procedure is wide applicable, no matter how little or how great the E/RT value of the reaction is.

KW - Activation energy

KW - Isoconversional methods

KW - Iterative procedure

KW - Kinetics

KW - Non-isothermal

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U2 - 10.1016/S0040-6031(00)00760-7

DO - 10.1016/S0040-6031(00)00760-7

M3 - Article

AN - SCOPUS:0035932341

SN - 0040-6031

VL - 369

SP - 137

EP - 142

JO - Thermochimica Acta

JF - Thermochimica Acta

IS - 1-2

ER -

A consideration of errors and accuracy in the isoconversional methods

Abstract

Keywords

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