Thermal decomposition of zinc carbonate hydroxide - Université de Lorraine Access content directly
Journal Articles Thermochimica Acta Year : 2004

Thermal decomposition of zinc carbonate hydroxide


This study is devoted to the thermal decomposition of two zinc carbonate hydroxide samples up to 400 °C. Thermogravimetric analysis (TGA), boat experiments and differential scanning calorimetry (DSC) measurements were used to follow the decomposition reactions. The initial samples and the solid decomposition products were analyzed by scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared (FTIR) and laser particle size analyzer. Results showed that zinc carbonate hydroxide decomposition started at about 150 °C and the rate of decomposition became significant at temperatures higher than 200 °C. The apparent activation energies (Ea) in the temperature range 150–240 °C for these two samples were 132 and 153 kJ/mol. The XRD analyses of the intermediately decomposed samples and the DSC results up to 400 °C suggested a single-step decomposition of zinc carbonate hydroxide to zinc oxide with not much change in their overall morphologies.
Fichier principal
Vignette du fichier
NK_ZBC_Decomposition.pdf (668.03 Ko) Télécharger le fichier
Origin : Files produced by the author(s)

Dates and versions

hal-01507382 , version 1 (04-05-2017)



Ndue Kanari, Devabrata Mishra, I. Gaballah, Bernard Dupré. Thermal decomposition of zinc carbonate hydroxide. Thermochimica Acta, 2004, 410, pp. 93-100. ⟨10.1016/S0040-6031(03)00396-4⟩. ⟨hal-01507382⟩
402 View
11630 Download



Gmail Facebook X LinkedIn More