Crafting resilient catalysts that promote H production through the hydrolysis of hydrogen storage materials like sodium borohydride stands paramount for the impending hydrogen economy. In this study, we propose a versatile metal–organic framework (MOF)-assisted approach to systematically explore the impact of electron-metal support interaction (EMSI) of Ru-modified Co-SmO (Ru/Co-SmO) on H evolution from NaBH hydrolysis. Strategic annealing at 800 °C induces cobalt vacancies on the Ru/Co-SmO surface, optimizing the exposure of active sites and amplifying mass-charge transfer efficiency. Consequently, the defect-enriched Ru/Co-SmO showcases an impressive hydrogen generation rate (HGR = 0.430 mol min g) and outstanding cycling resilience, eclipsing the performance of most contemporary catalysts. Experimental findings reveal that Sm can not only adjust the Ru lattice spacing to accommodate more BH, but also modulate the Co vacancy concentration, thus bolstering the charge transport and ameliorating the catalyst's electrical conductivity. DFT calculations confirm that the Michaelis-Menten/Eley-Rideal mechanism is more appropriate to explain the hydrolysis of NaBH.

中文翻译：

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缺陷诱导的 Ru/Co-Sm2O3 中间层的电子金属-载体相互作用可实现高效的 NaBH4 水解活性

制作弹性催化剂，通过硼氢化钠等储氢材料的水解促进氢气生产，对于即将到来的氢经济至关重要。在这项研究中，我们提出了一种多功能金属有机框架（MOF）辅助方法，系统地探讨Ru修饰的Co-SmO（Ru/Co-SmO）的电子-金属支撑相互作用（EMSI）对H演化的影响。 NaBH水解。 800 °C 的策略退火会在 Ru/Co-SmO 表面产生钴空位，优化活性位点的暴露并提高质荷转移效率。因此，富含缺陷的 Ru/Co-SmO 表现出令人印象深刻的氢生成速率（HGR = 0.430 mol min g）和出色的循环弹性，超越了大多数当代催化剂的性能。实验结果表明，Sm不仅可以调节Ru晶格间距以容纳更多的BH，还可以调节Co空位浓度，从而促进电荷传输并改善催化剂的电导率。 DFT 计算证实 Michaelis-Menten/Eley-Rideal 机制更适合解释 NaBH 的水解。