School of Chemical Engineering, The University of New South Wales, Sydney, NSW 2052, Australia.
Solid State Nucl Magn Reson. 2011 May-Jun;39(3-4):116-41. doi: 10.1016/j.ssnmr.2011.03.007. Epub 2011 Apr 15.
Further progress in the field of heterogeneous catalysis depends on our knowledge of the nature and behavior of surface sites on solid catalysts and of the mechanisms of chemical reactions catalyzed by these materials. In the past decades, solid-state NMR spectroscopy has been developed to an important tool for routine characterization of solid catalysts. The present work gives a review on experimental approaches and applications of solid-state NMR spectroscopy for investigating Brønsted and Lewis sites on solid acids. Studies focusing on the generation of surface sites via post-synthesis modification routes of microporous and mesoporous materials support the development of new and the improvement of existing catalyst systems. High-temperature and flow techniques of in situ solid-state NMR spectroscopy allow a deeper insight into the mechanisms of heterogeneously catalyzed reactions and open the way for studying the activity of acidic surface sites. They help to clarify the activation of reactants on Brønsted and Lewis acid sites and improve our understanding of mechanisms affecting the selectivity of acid-catalyzed reactions.
异相催化领域的进一步发展取决于我们对固体催化剂表面位的性质和行为以及这些材料催化的化学反应机制的了解。在过去的几十年中，固态 NMR 光谱已发展成为常规表征固体催化剂的重要工具。本工作综述了固态 NMR 光谱在研究固体酸的 Brønsted 和 Lewis 位中的实验方法和应用。通过微孔和介孔材料的后合成修饰途径生成表面位的研究支持了新型和改进现有催化剂体系的发展。原位固态 NMR 光谱的高温和流动技术可以更深入地了解异相催化反应的机制，并为研究酸性表面位的活性开辟了道路。它们有助于阐明反应物在 Brønsted 和 Lewis 酸位上的活化，并提高我们对影响酸催化反应选择性的机制的理解。
