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

^*此作品的通讯作者

Chiba Institute of Technology

科研成果: 期刊稿件 › 文章 › 同行评审

123 引用（Scopus）

摘要

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.

源语言	英语
页（从-至）	137-142
页数	6
期刊	Thermochimica Acta
卷	369
期	1-2
DOI	https://doi.org/10.1016/S0040-6031(00)00760-7
出版状态	已出版 - 22 3月 2001
已对外发布	是

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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.",

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AU - Gao, Zhiming

AU - Nakada, Masahiro

AU - Amasaki, Iwao

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

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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

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