催化剂活性区域分布的计算机图象纹理小波分析  

STUDY ON DISTRIBUTION OF SURFACE ACTIVE AREA IN CATALYST WITH COMPUTER IMAGE TEXTURE WAVALET ANALYSIS

作　　者：冯霞[1] 段世铎[1] 王积分[1] 阎伟[1] 

机构地区：[1]天津大学化学系,天津大学计算机科学与工程系

出　　处：《宁夏大学学报（自然科学版）》1997年第4期340-342,共3页Journal of Ningxia University(Natural Science Edition)

基　　金：国家自然科学基金

摘　　要：利用计算机图象纹理分析方法研究了钒催化剂表面活性微区分布及特征，计算了催化剂表面的ＳＥＭ图象对象素的奇异强度值．结果表明奇异强度值在３．０～４．０范围内为催化剂表面活性区域，活性催化剂占活性区域整个表面积的１５％～１８％，而非活性催化剂仅占１．８％．Distribution and characteristic of surface active area in vanadium catalysts are studied by using Computer Image Texture Wavelet analysis.Singularity Strengthes(SS) of each pixel on the SEM image of catalyst surface are calculated.The results show that the sample area with SS between 3.0 and 4.0 is in good activity. The active area in active catalyst occupy 15%～18% of totalarea of the surface whereas only 1.8% in deactive catalyst.

关 键 词：催化剂 活性区域 计算机图象纹理 小波分析 

分 类 号：O643.36[理学—物理化学]