The reverse water-gas shift (RWGS) reaction offers a sustainable approach for CO₂ utilization, yielding CO for vital catalytic processes. This study compares the catalytic performance of exsolved Cu- and Ni-encapsulated silicalite-1 (S-1) catalysts against those prepared by impregnation methods. Exsolved catalysts, characterized by confined metal nanoparticles and distinct surface chemistry, exhibited higher CO selectivity and lower activation energies of CO formation than their impregnated counterparts. Surface and structural analyses revealed that the exsolution process enhanced RWGS activity, driven by altered metal-support interactions and unique adsorption behaviors, offering insights for improving the efficiency of RWGS catalysis.

中文翻译：

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通过在硅石-1 中溶解 Cu 和 Ni 提高反向水气变换活性


逆水气变换 （RWGS） 反应为 CO₂ 利用提供了一种可持续的方法，为重要的催化过程产生 CO。本研究比较了溶出的 Cu 和 Ni 包封的 Silicalite-1 （S-1） 催化剂与通过浸渍方法制备的催化剂的催化性能。与浸渍催化剂相比，溶出催化剂具有更高的 CO 选择性和较低的 CO 形成活化能。表面和结构分析表明，在改变的金属-载体相互作用和独特的吸附行为的驱动下，溶出过程增强了 RWGS 活性，为提高 RWGS 催化效率提供了见解。