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介绍了近年来化学领域中有关分形体的制备及分形现象的实验研究,重点介绍了结合小波分析方法的分形理论在催化领域的应用情况。催化剂多为构型复杂材料,利用传统分析方法难以对其进行细节描述和定量分析。引入结合小波分析方法的分形理论,能同时利用分形标度不变性和小波多尺度分析这两方面的特点,定量描述催化剂复杂的表面形态和活性点分布等规律,有助于准确把握催化剂的结构,正确理解有关催化的现象与效应。最后对未来该领域的研究方向提出展望。
This paper introduced the experimental research on the preparation and fractal of fractal bodies in the field of chemistry in recent years, and introduced the application of fractal theory combined with wavelet analysis in the field of catalysis. Catalysts are mostly complex materials and are difficult to describe and quantify in detail using traditional analytical methods. The fractal theory combined with wavelet analysis is introduced to describe the complex surface morphology and distribution of active sites quantitatively by using both the features of fractal scaling invariance and wavelet multiscale analysis and help to accurately understand the structure of the catalyst Correct understanding of the phenomenon and effect of catalysis. Finally, the future research direction in this field is put forward.