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用NMR方法研究固体表面吸附是表面化学近十几年发展起来的一个较新的领域。它可直接观测吸附分子在固体表面上的动态特性,研究固体表面化学反应的中间产物,为深入了解固体表面与吸附分子相互作用力的性质,阐明某些催化反应的机理提供许多有价值的结构信息。NMR主要用于研究液体样品。对固体样品,由于直接偶极相互作用,一般情况下只能得到宽线的谱图。但对吸附体系来说,不论物理吸附还是化学吸附,分子在表面上仍有相当
Using NMR methods to study solid surface adsorption is a relatively new field developed by surface chemistry in recent ten years. It can directly observe the dynamic characteristics of adsorbed molecules on the solid surface, to study the intermediate products of solid surface chemical reactions. To understand the nature of the interaction between the solid surface and the adsorbate molecules, it is clarified that some of the catalytic reactions provide many valuable structures information. NMR is mainly used to study liquid samples. For solid samples, generally only broad-spectrum spectra are obtained due to direct dipole interactions. However, the adsorption system, regardless of physical adsorption or chemical adsorption, the molecules are still on the surface quite