苯甲醇在Pt/C催化剂上氧化的动力学研究

IF 1.2 4区综合性期刊 Q3 MULTIDISCIPLINARY SCIENCES

Kuwait Journal of Science Pub Date : 2025-01-17 DOI:10.1016/j.kjs.2025.100373

Firas H. Albadran , Muhammad Saeed , Ibtisam Kamal

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引用次数: 0

摘要

醇类氧化合成羰基化合物是一个重要的研究领域。采用湿浸渍法制备了Pt/C催化剂，并用x射线衍射、傅里叶变换红外光谱、表面积和孔径分析对催化剂进行了表征。然后将其用作苯甲醇氧化的催化剂。采用气相色谱法对氧化反应过程进行了监测。采用Polymath 5.1软件对氧化数据进行非线性回归分析，分析反应动力学。计算得到反应速率常数为9.28 × 10−6 mol L g−1s−1，反应级数为0.447。提出了苯甲醇氧化反应的速率规律为RBA=ksθBA0.442θO20.005。

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A kinetic study of benzyl alcohol oxidation over Pt/C catalyst

The synthesis of carbonyl compounds by oxidation of alcohols is an important research area. A Pt/C catalyst was prepared by wet impregnation technique followed by characterization using X-ray diffraction, Fourier transform infrared spectroscopy as well as surface area and pore size analysis. It was then employed as catalyst for benzyl alcohol oxidation. The progress of oxidation reaction was monitored using GC. The oxidation data was analyzed using the nonlinear regression method using Polymath 5.1 software to analyze reaction kinetics. The rate constant and order of reaction were calculated as 9.28 × 10⁻⁶ mol L g⁻¹s⁻¹and 0.447, respectively. The rate law for oxidation of benzyl alcohol was proposed as

R_{B A} = k_{s} θ_{B A}^{0.442} θ_{O 2}^{0.005} .

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来源期刊

Kuwait Journal of Science MULTIDISCIPLINARY SCIENCES-

CiteScore

1.60

自引率

28.60%

发文量

132

期刊介绍： Kuwait Journal of Science (KJS) is indexed and abstracted by major publishing houses such as Chemical Abstract, Science Citation Index, Current contents, Mathematics Abstract, Micribiological Abstracts etc. KJS publishes peer-review articles in various fields of Science including Mathematics, Computer Science, Physics, Statistics, Biology, Chemistry and Earth & Environmental Sciences. In addition, it also aims to bring the results of scientific research carried out under a variety of intellectual traditions and organizations to the attention of specialized scholarly readership. As such, the publisher expects the submission of original manuscripts which contain analysis and solutions about important theoretical, empirical and normative issues.