Thielmann Frank
Surface Measurement Systems Ltd., 3 Warple Mews, Warple Way, London W3 ORF, UK.
J Chromatogr A. 2004 May 28;1037(1-2):115-23. doi: 10.1016/j.chroma.2004.03.060.
Modern methods for the characterisation of porous materials are probably as numerous and divers as applications of porous solids. In recent years interest has grown in a deeper understanding of surface phenomena beyond the usual description of surface area and adsorption isotherm. This has lead to an introduction of more sophisticated approaches, which allow for a study of thermodynamic and kinetic information. One technique, which has been shown to be very valuable is inverse gas chromatography (IGC). Due to its increasing application in industry it is the intention of this short review to introduce the principals as well as the more common applications of IGC. The methods and parameters to be discussed include isotherm determination, the measurement of surface and free energy as well as the calculation of acid-base parameters. Further, the determination of the surface heterogeneity and heat of sorption is shown. The measurement and calculation of diffusion parameters is also briefly described. It is also the intention of this paper to discuss experimental aspects and common misconceptions.
用于表征多孔材料的现代方法可能与多孔固体的应用一样繁多且多样。近年来，人们对于深入理解表面现象的兴趣与日俱增，不再局限于对表面积和吸附等温线的常规描述。这促使引入了更为复杂的方法，从而能够研究热力学和动力学信息。一种已被证明非常有价值的技术是反相气相色谱法（IGC）。鉴于其在工业中的应用日益广泛，本简短综述旨在介绍IGC的原理及其更常见的应用。将要讨论的方法和参数包括等温线测定、表面能和自由能的测量以及酸碱参数的计算。此外，还展示了表面非均质性和吸附热的测定。本文还简要描述了扩散参数的测量和计算。本文的目的还在于讨论实验方面以及常见的误解。
