非等温条件下定量评估反应性的等转化方法

IF 3.1 2区化学 Q2 CHEMISTRY, ANALYTICAL

Thermochimica Acta Pub Date : 2024-05-06 DOI:10.1016/j.tca.2024.179766

Andrey Galukhin

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引用次数: 0

摘要

本文提出了等转化法，用于定量评估在非等温条件下通过热方法研究的基本反应和复杂反应的反应性。重点是在恒定加热速率下研究的过程，因为恒定加热速率是热分析中最常用的模式。所提出方法的准确性通过基本反应的模拟数据进行了测试，而其实际应用则通过几个实验实例进行了演示。此外，还考虑了实验不确定性对引入的反应系数精度的影响。

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Isoconversional approach to quantitative assessment of reactivity under non-isothermal conditions

The present paper proposes the isoconversional approach to a quantitative assessment of the reactivity in elementary and complex reactions studied by thermal methods under non-isothermal conditions. The focus is on the processes studied at a constant heating rate as the most common mode used in thermal analysis. The accuracy of the proposed approach is tested on simulated data for elementary reactions, whereas its practical application is demonstrated on few experimental examples. The effect of experimental uncertainties on the precision of the introduced reactivity factors is also considered.

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来源期刊

Thermochimica Acta 化学-分析化学

CiteScore

6.50

自引率

8.60%

发文量

210

审稿时长

40 days

期刊介绍： Thermochimica Acta publishes original research contributions covering all aspects of thermoanalytical and calorimetric methods and their application to experimental chemistry, physics, biology and engineering. The journal aims to span the whole range from fundamental research to practical application. The journal focuses on the research that advances physical and analytical science of thermal phenomena. Therefore, the manuscripts are expected to provide important insights into the thermal phenomena studied or to propose significant improvements of analytical or computational techniques employed in thermal studies. Manuscripts that report the results of routine thermal measurements are not suitable for publication in Thermochimica Acta. The journal particularly welcomes papers from newly emerging areas as well as from the traditional strength areas: - New and improved instrumentation and methods - Thermal properties and behavior of materials - Kinetics of thermally stimulated processes