The study primarily focuses on demonstrating the catalytic activity and selectivity of the Ru1/NC-900-800NH3 SAC, but lacks a detailed mechanistic investigation. While some experiments like in situ NMR, kinetic studies, and microcalorimetric measurements are conducted, they do not fully explain the reaction pathway at an atomic level. A more in-depth understanding of the reaction mechanism would significantly strengthen the conclusions.

The synthesis and characterization of the Ru1/NC SACs are relatively complex, and the reproducibility of the catalyst synthesis needs to be thoroughly evaluated. The paper does not provide sufficient data on the reproducibility of the synthesis, which raises concerns about the feasibility of large-scale application.

The paper lacks detailed cost analysis and life-cycle assessment, which is essential for evaluating the potential of the catalyst for practical applications. Without such analysis, it is difficult to judge the overall economic and environmental benefits of using the Ru1/NC SAC compared to existing methods.