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首页> 外文期刊>Journal of Crystal Growth >Decomposition Kinetics Of Tertiarybutanol And Diethylzinc Used As Precursor Sources For The Growth Of Zno
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Decomposition Kinetics Of Tertiarybutanol And Diethylzinc Used As Precursor Sources For The Growth Of Zno

机译：叔丁醇和二乙基锌作为Zno生长前体来源的分解动力学

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The pyrolysis of tertiarybutanol and diethylzinc has been studied, separately as well as combined, using an isothermal reactor attached to a quadrupole mass spectrometer. Kinetics of decomposition under hydrogen atmosphere were investigated over the temperature range 200-500 ℃, and reaction mechanisms are finally proposed. The decomposition of diethylzinc was found to be in agreement with previous studies. It starts above 300 ℃ and leads to the formation of ethylene (C_2H_4) and ethane (C_2H_6). The pyrolysis of tertiarybutanol begins at higher temperature, 360 ℃, and produces water (H_2O) and isobutene (C_4H_8). In case of the co-pyrolysis of tertiarybutanol with diethylzinc, these same decomposition products appear, indicating a comparable chemical process. It was observed that the onset and the complete decomposition were shifted to lower temperatures. The shift is 30 ℃ for tBuOH and 50 ℃ for DEZn. A ZnO deposit on the reactor walls was also found to influence the pyrolysis.
机译：使用连接到四极杆质谱仪的等温反应器分别研究了叔丁醇和二乙基锌的热解过程，也进行了组合研究。研究了氢气氛在200-500℃温度范围内的分解动力学，并提出了反应机理。发现二乙基锌的分解与先前的研究一致。它在高于300℃时开始，并导致形成乙烯（C_2H_4）和乙烷（C_2H_6）。叔丁醇的热解始于较高温度（360℃），并产生水（H_2O）和异丁烯（C_4H_8）。在叔丁醇与二乙基锌共热解的情况下，也会出现这些相同的分解产物，表明该过程具有可比性。观察到开始和完全分解转移到较低的温度。 tBuOH的偏移为30℃，DEZn的偏移为50℃。还发现反应器壁上的ZnO沉积物会影响热解。

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