The development of safe and efficient hydrogen storage/release systems is critical for achievement of a fuel-cell-based hydrogen economy. In this work, ultrafine PdAg NPs with the size of 2.5 nm were successfully immobilized on cerium oxide/nitrogen-doped carbon (CeO_x–NPC). By virtue of strong metal/support interactions, the obtained PdAg/CeO_x–NPC exhibits excellent catalytic activity in FA decomposition at room temperature and the turnover frequency (TOF) reaches a high value of 875 h⁻¹. The remarkable catalytic property of PdAg/CeO_x–NPC results from the small and highly dispersed PdAg NPs and the synergistic effect of the bimetallic system. Also, the strong metal–support interaction efficiently improves the catalytic properties of the bimetallic catalytic system.

中文翻译：

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固定在氮掺杂碳/氧化铈上的超细PdAg纳米颗粒，可实现甲酸的出色脱氢

安全高效的氢存储/释放系统的开发对于实现基于燃料电池的氢经济至关重要。在这项工作中，将尺寸为2.5 nm的超细PdAg NP成功地固定在氧化铈/氮掺杂碳（CeO _x –NPC）上。凭借强的金属/载体相互作用，所获得的PdAg / CeO _x -NPC在室温下的FA分解中表现出出色的催化活性，周转率（TOF）达到875 h ^-1的高值。PdAg / CeO _x的卓越催化性能–NPC是由小的且高度分散的PdAg NP和双金属系统的协同作用产生的。同样，强大的金属-载体相互作用有效地改善了双金属催化体系的催化性能。