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- W2352969364 abstract "The single phase La2(CO3)3·3.4H2 O was synthesized by hydrothermal method. The thermal decomposition and intermediates and final solid products of La2(CO3)3·3.4H2O from 30 to 1000 °C were characterized by XRD, FTIR and DTA-TG. The kinetics of dehydration of La2(CO3)3·3.4H2O in the temperature range of 30-366 °C was investigated under non-isothermal conditions. Flynn-Wall-Ozawa and Friedman isoconversion methods were used to calculate the activation energy and analyze the reaction steps; multivariate non-linear regression program was applied to determine the most probable mechanism and the kinetic parameters. The results show that the thermal dehydration of La2(CO3)3·3.4H2O is a kind of three-step competitive reaction, and controlled by an n-order initial reaction followed by n-order competitive reaction(FnFnFn model). The activation energy matching with the most probable model is close to value obtained by Friedman method. The fitting curves match the original TG-DTG curves very well." @default.
- W2352969364 created "2016-06-24" @default.
- W2352969364 creator A5052478631 @default.
- W2352969364 date "2014-01-01" @default.
- W2352969364 modified "2023-09-23" @default.
- W2352969364 title "Non-isothermal kinetic analysis of thermal dehydration of La_2(CO_3)_3·3.4H_2O in air" @default.
- W2352969364 hasPublicationYear "2014" @default.
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