Decomposition processes of nickel hydroxide

被引：13

作者：

Logvinenko, V. ^{[1
]}

Bakovets, V. ^{[1
]}

Trushnikova, L. ^{[1
]}

机构：

[1] Russian Acad Sci, Nikolaev Inst Inorgan Chem, Siberian Branch, Novosibirsk 630090, Russia

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2012年 / 107卷 / 03期

关键词：

Metal hydroxides; Model-free kinetics; Nano-dimensional materials; Non-isothermal kinetics; Thermal analysis; APPROXIMATION; STABILITY; KINETICS; NIO;

D O I：

10.1007/s10973-011-1689-0

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The dehydration processes of nickel hydroxide were studied by means of thermogravimetry in a temperature range from 300 to 900 K. The kinetics of the low-temperature dehydroxylation (approximate to 300-600 K) was studied under non-isothermal conditions. A model-free method was used to calculate the activation energy and to analyze the stepwise checking; the non-linear regression method was applied to calculate the kinetic parameters of multi-stage decomposition reactions. The features of the dehydroxylation kinetics for the multi-stage process are explained by the formation and decomposition of hydrogel and xerogel phases.

引用

页码：983 / 987

页数：5

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