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- Title
Humidity controlled thermal analysis.
- Authors
Arii, T.; Kishi, A.
- Abstract
The low temperature formation of crystalline zinc oxide via thermal decomposition of zinc acetylacetonate monohydrate C10H14O4Zn·H2O was studied by humidity controlled thermal analysis. The thermal decomposition was investigated by sample-controlled thermogravimetry (SCTG), thermogravimety combined with evolved gas analysis by mass spectrometry (TG-MS) and simultaneous differential scanning calorimetry and X-ray diffractometry (XRD-DSC). Decomposition of C10H14O4Zn·H2O in dry gas by linear heating began with dehydration around 60°C, followed by sublimation and decomposition above 100°C. SCTG was useful because the high-temperature parallel decompositions were inhibited. The decomposition changed with water vapor in the atmosphere. Formation of ZnO was promoted by increasing water vapor and could be synthesized at temperatures below 100°C. XRD-DSC equipped with a humidity generator revealed that C10H14O4Zn·H2O decomposed directly to the crystalline ZnO by reacting with water vapor.
- Subjects
HUMIDITY; THERMAL analysis; ZINC oxide; ZINC compounds; MASS spectrometry; NUCLEAR spectroscopy
- Publication
Journal of Thermal Analysis & Calorimetry, 2006, Vol 83, Issue 1, p253
- ISSN
1388-6150
- Publication type
Article
- DOI
10.1007/s10973-005-6921-3