| 基于吸附等温线的表面分形研究及其地球科学应用 |
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| 引用本文： | 刘显东,陆现彩,侯庆锋,崔举庆,陆志均,孙岩,徐士进.基于吸附等温线的表面分形研究及其地球科学应用[J].地球科学进展,2005,20(2):201-206. |
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| 作者姓名： | 刘显东 陆现彩 侯庆锋 崔举庆 陆志均 孙岩 徐士进 |
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| 作者单位： | 1. 内生金属矿床成矿机制研究国家重点实验室,南京大学地球科学系,江苏,南京,210093
2. 南京大学化学系,江苏省表面和界面化学工程与技术研究中心,江苏,南京,210093 |
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| 摘 要： | 矿物岩石的表面微形貌和孔隙结构是影响其地球化学行为的关键因素，从纳米尺度上表征这一特征对地球化学动力学研究和材料研发有着重要的意义。重点介绍了基于吸附等温线的分形研究方法，以表征纳米尺度上矿物或岩石表面的不规则性和微孔隙结构。从该方法的物理化学原理出发，对比分析了其适用范围和样品限制。在综合当前煤岩学、土壤学、材料学等领域的应用研究成果的基础上，提出了该分形研究方法在地球科学研究中的应用前景和发展趋势。
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| 关 键 词： | 分形 吸附等温线 表面 纳米尺度 |
| 文章编号： | 1001-8166(2005)02-0201-06 |
| 收稿时间： | 2003-12-08 |
| 修稿时间： | 2003年12月8日 |
A FEASIBLE METHOD FOR FRACTAL STUDY USING GAS ADSORPTION ISOTHERM AND ITS APPLICATION IN EARTH SCIENCES |
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| LIU Xian-dong,LU Xian-cai,HOU Qing-feng,CUI Ju-qing,LU Zhi-jun,SUN Yan,XU Shi-jin.A FEASIBLE METHOD FOR FRACTAL STUDY USING GAS ADSORPTION ISOTHERM AND ITS APPLICATION IN EARTH SCIENCES[J].Advance in Earth Sciences,2005,20(2):201-206. |
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| Authors: | LIU Xian-dong LU Xian-cai HOU Qing-feng CUI Ju-qing LU Zhi-jun SUN Yan XU Shi-jin |
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| Institution: | 1.State Key Laboratory of Mineral Deposit Research, Department of Earth Sciences, Nanjing University;
2.Research Center of Surface and Interface Chemical Engineering Technology, Nanjing University, Nanjing 210093, China |
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| Abstract: | The surface properties and pore structure of minerals/rocks are key parameters controlling their geochemical dynamic behaviors. Characterizing these properties on the nanometer scale is greatly significant for geochemical researches and development of new materials. Fractal dimension is an integrated parameter to describe quantitatively the roughness of the surface and the pore-structure in the geological materials. A method for fractal study based on gas adsorption isotherms is introduced in this paper. The suitability and advantages are discussed in the view of the theoretical argument. Based on the review of application of this method in organic petrology, pedology and material sciences, the application prospect of this method in earth science is schemed. |
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| Keywords: | Fractal dimension Isotherm Surface Nano-scale |
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