کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10393267 | 887764 | 2005 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Thermal decomposition of [Co(NH3)6]2(C2O4)3·4H2O
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Thermal decomposition of [Co(NH3)6]2(C2O4)3·4H2O Thermal decomposition of [Co(NH3)6]2(C2O4)3·4H2O](/preview/png/10393267.png)
چکیده انگلیسی
The main goal of the presented work was to verify the previously assumed decomposition stages of [Co(NH3)6]2(C2O4)3·4H2O (HACOT) [Thermochim. Acta 354 (2000) 45] under different atmospheres (inert, oxidising and reducing). The gaseous products of the decomposition were qualitatively and quantitatively analysed by mass spectrometry (MS) and Fourier-transformed infrared spectroscopy (FT-IR). It was confirmed that the gaseous products of HACOT decomposition under studied atmospheres there were H2O (stage I) and NH3, CO2 (stage II). The main gaseous products in the third stage in argon and hydrogen (20 vol.% H2/Ar) were CO and CO2, whereas in air (20 vol.% O2/Ar) only CO2 was identified. Under the oxidising as well as reducing atmospheres the influence of secondary reactions on the composition of both, solid and gaseous products was found particularly strong during the third stage of the process. The studies of the multistage decomposition of HACOT, additionally complicated by many secondary reactions, required application of the hyphenated TA-MS or TA-FT-IR techniques combined with the pulse thermal analysis PTA® allowing quantification of the spectroscopic signals and investigation of gas-solid and gas-gas reactions in situ.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thermochimica Acta - Volume 432, Issue 1, 1 July 2005, Pages 56-69
Journal: Thermochimica Acta - Volume 432, Issue 1, 1 July 2005, Pages 56-69
نویسندگان
Ewa Ingier-Stocka, Marek Maciejewski,