Song Yuan-Jun, Guo Sijie, Xia Peng, Sun Fei, Chen Ze-Xian, Yang Shi-Han, Zhang Xiao-Yang, Zhang Tong
School of Electronic Science and Engineering, Southeast University, Nanjing 210096, China.
Suzhou Key Laboratory of Metal Nano-Optoelectronic Technology, Suzhou 215123, China.
Nanoscale Horiz. 2024 Dec 16;10(1):16-37. doi: 10.1039/d4nh00337c.
Intermetallic compound (IMC) catalysts have garnered significant attention due to their unique surface and electronic properties, which can lead to enhanced catalytic performance compared to traditional monometallic catalysts. However, developing IMC materials as high-performance catalysts has been hindered by the inherent complexity of synthesizing nanoparticles with well-defined bulk and surface compositions. Achieving precise control over the composition of supported bimetallic IMC catalysts, especially those with high surface area and stability, has proven challenging. This review provides a comprehensive overview of the recent progress in developing supported IMC catalysts. We first examine the various synthetic approaches that have been explored to prepare supported IMC nanoparticles with phase-pure bulk structures and tailored surface compositions. Key factors influencing the formation kinetics and compositional control of these materials are discussed in detail. Then the strategies for manipulating the surface composition of supported IMCs are delved into. Applications of high-performance supported IMCs in important reactions such as selective hydrogenation, reforming, dehydrogenation, and deoxygenation are comprehensively reviewed, showcasing the unique advantages offered by these materials. Finally, the prevailing research challenges associated with supported IMCs are identified, including the need for a better understanding of the composition-property relationships and the development of scalable synthesis methods. The prospects for the practical implementation of these versatile catalysts in industrial processes are also highlighted, underscoring the importance of continued research in this field.
金属间化合物（IMC）催化剂因其独特的表面和电子性质而备受关注，与传统单金属催化剂相比，这些性质可导致催化性能增强。然而，将IMC材料开发为高性能催化剂受到合成具有明确体相和表面组成的纳米颗粒的固有复杂性的阻碍。事实证明，实现对负载型双金属IMC催化剂组成的精确控制具有挑战性，尤其是那些具有高表面积和稳定性的催化剂。本综述全面概述了负载型IMC催化剂开发的最新进展。我们首先研究了为制备具有相纯体相结构和定制表面组成的负载型IMC纳米颗粒而探索的各种合成方法。详细讨论了影响这些材料形成动力学和组成控制的关键因素。然后深入探讨了调控负载型IMC表面组成的策略。全面综述了高性能负载型IMC在选择性氢化、重整、脱氢和脱氧等重要反应中的应用，展示了这些材料的独特优势。最后，确定了与负载型IMC相关的主要研究挑战，包括需要更好地理解组成-性质关系以及开发可扩展的合成方法。还强调了这些多功能催化剂在工业过程中实际应用的前景，突出了该领域持续研究的重要性。
