The complete oxidation of isopropanol in its liquid phase at a low temperature was studied in the presence of zinc oxide (ZnO). This solid was prepared with the precipitation method. Structural analysis (infrared in Fourier transform and diffraction of X-rays) and textured (adsorption/desorption of N₂) were conducted for the wurtzite structure results, an IV type isotherm with a type H3 hysteresis. This solid presents a good catalytic activity against the complete oxidation of isopropanol, a constant of selectivity equal to 1; however, the studied temperatures were 40, 60, and 80°C. In addition, a kinetic study of the oxidation was performed and showed that the reaction follows a successive mechanism isopropanol-acetone-carbon dioxide. The low value of the apparent energy of the activation of this solid confirms the high value of the initial rate of the catalytic oxidation reaction of isopropanol in the temperature range studied.

中文翻译：

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制备和表征的氧化锌在低温下异丙醇在液相中的总氧化

在氧化锌（ZnO）存在下，研究了异丙醇在低温下在液相中的完全氧化。该固体通过沉淀法制备。结构分析（红外傅立叶变换和X射线衍射）和织构化（N _2的吸附/解吸））进行了纤锌矿结构结果的测试，IV型等温线具有H3型滞后。该固体对异丙醇的完全氧化具有良好的催化活性，选择性常数等于1；但是，研究温度为40、60和80°C。另外，进行了氧化动力学研究，结果表明反应遵循了异丙醇-丙酮-二氧化碳的连续机理。该固体活化的表观能量的低值证实了在所研究的温度范围内异丙醇的催化氧化反应的初始速率的高值。