Kinetics of thermal decomposition of nickel oxalate dihydrate in air

Dan Zhan; Changjie Cong; Kahirou Diakite; Youtian Tao; Keli Zhang

doi:10.1016/j.tca.2005.01.029

Kinetics of thermal decomposition of nickel oxalate dihydrate in air

Dan Zhan, Changjie Cong, Kahirou Diakite, Youtian Tao, Keli Zhang

Wuhan University

科研成果: 期刊稿件 › 文章 › 同行评审

52 引用（Scopus）

摘要

Thermal decomposition taking place in solid state complex, NiC ₂O₄·2H₂O, has been investigated in air by means of TG-DTG/DTA, DSC, XRD. TG-DTG/DTA curves showed that the decomposition proceeds through two well-defined steps with DTA peaks closely corresponding to the weight loss obtained. XRD showed that the final decomposition product of NiC₂O₄·2H₂O was NiO. Kinetics analysis of NiC₂O₄·2H ₂O decomposition steps was performed under non-isothermal conditions. The activation energies were calculated through Friedman and Flynn-Wall-Ozawa (FWO) methods, and the most possible kinetic model function has been estimated through the multiple-linear regression method. The activation energies for the two decomposition steps of NiC₂O₄·2H₂O were 171.1 ± 4.2 and 174.4 ± 8.1 kJ/mol, respectively.

源语言	英语
页（从-至）	101-105
页数	5
期刊	Thermochimica Acta
卷	430
期	1-2
DOI	https://doi.org/10.1016/j.tca.2005.01.029
出版状态	已出版 - 6月 2005
已对外发布	是

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title = "Kinetics of thermal decomposition of nickel oxalate dihydrate in air",

abstract = "Thermal decomposition taking place in solid state complex, NiC 2O4·2H2O, has been investigated in air by means of TG-DTG/DTA, DSC, XRD. TG-DTG/DTA curves showed that the decomposition proceeds through two well-defined steps with DTA peaks closely corresponding to the weight loss obtained. XRD showed that the final decomposition product of NiC2O4·2H2O was NiO. Kinetics analysis of NiC2O4·2H 2O decomposition steps was performed under non-isothermal conditions. The activation energies were calculated through Friedman and Flynn-Wall-Ozawa (FWO) methods, and the most possible kinetic model function has been estimated through the multiple-linear regression method. The activation energies for the two decomposition steps of NiC2O4·2H2O were 171.1 ± 4.2 and 174.4 ± 8.1 kJ/mol, respectively.",

keywords = "DSC, Kinetics, Mechanism, NiCO·2hO, TG-DTA, Thermal decomposition, XRD",

author = "Dan Zhan and Changjie Cong and Kahirou Diakite and Youtian Tao and Keli Zhang",

year = "2005",

month = jun,

doi = "10.1016/j.tca.2005.01.029",

language = "英语",

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TY - JOUR

T1 - Kinetics of thermal decomposition of nickel oxalate dihydrate in air

AU - Zhan, Dan

AU - Cong, Changjie

AU - Diakite, Kahirou

AU - Tao, Youtian

AU - Zhang, Keli

PY - 2005/6

Y1 - 2005/6

N2 - Thermal decomposition taking place in solid state complex, NiC 2O4·2H2O, has been investigated in air by means of TG-DTG/DTA, DSC, XRD. TG-DTG/DTA curves showed that the decomposition proceeds through two well-defined steps with DTA peaks closely corresponding to the weight loss obtained. XRD showed that the final decomposition product of NiC2O4·2H2O was NiO. Kinetics analysis of NiC2O4·2H 2O decomposition steps was performed under non-isothermal conditions. The activation energies were calculated through Friedman and Flynn-Wall-Ozawa (FWO) methods, and the most possible kinetic model function has been estimated through the multiple-linear regression method. The activation energies for the two decomposition steps of NiC2O4·2H2O were 171.1 ± 4.2 and 174.4 ± 8.1 kJ/mol, respectively.

AB - Thermal decomposition taking place in solid state complex, NiC 2O4·2H2O, has been investigated in air by means of TG-DTG/DTA, DSC, XRD. TG-DTG/DTA curves showed that the decomposition proceeds through two well-defined steps with DTA peaks closely corresponding to the weight loss obtained. XRD showed that the final decomposition product of NiC2O4·2H2O was NiO. Kinetics analysis of NiC2O4·2H 2O decomposition steps was performed under non-isothermal conditions. The activation energies were calculated through Friedman and Flynn-Wall-Ozawa (FWO) methods, and the most possible kinetic model function has been estimated through the multiple-linear regression method. The activation energies for the two decomposition steps of NiC2O4·2H2O were 171.1 ± 4.2 and 174.4 ± 8.1 kJ/mol, respectively.

KW - DSC

KW - Kinetics

KW - Mechanism

KW - NiCO·2hO

KW - TG-DTA

KW - Thermal decomposition

KW - XRD

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DO - 10.1016/j.tca.2005.01.029

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SN - 0040-6031

VL - 430

SP - 101

EP - 105

JO - Thermochimica Acta

JF - Thermochimica Acta

IS - 1-2

ER -

Kinetics of thermal decomposition of nickel oxalate dihydrate in air

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