标题： 高度可变形和可移动的钯纳米晶体作为高效的碳捕获剂 显示英文标题

标题： Highly Deformable and Mobile Palladium Nanocrystals as Efficient Carbon Scavengers

摘要： 表面结垢会导致许多能耗密集的工业过程性能退化，但现有的解决方案要么过于复杂而无法常规使用，要么不完整，无法彻底消除。 这里我们提出并证明，碳含量沉积物可以通过在相对较低温度下具有极端形状柔韧性的游离钯纳米颗粒以高效的方式催化清除。 令人惊讶的是，在它们剧烈的类液态迁移过程中，这些颗粒仍能保持晶体内部结构，并通过自表面扩散保持其初始晶体取向。 此外，这些催化颗粒在偶尔因表面结焦或多重颗粒烧结而失活后，甚至能够通过其他游离颗粒实现再生。 这些发现为代谢驱动的“活性”纳米晶体提供了新的见解，并为高效催化开辟了一条新途径。 显示英文摘要

摘要： Fouling of surfaces leads to performance degradation in many energy-intensive industrial processes, but the present solutions are either too complicated to be routinely used or incomplete for eradication. Here we propose and demonstrate that carbon-containing deposits can be catalytically wiped out in an efficient way by roaming palladium nanoparticles with extreme shape flexibility at relatively low temperatures. Surprisingly, during their dramatic liquid-like migrations, these particles could still maintain crystalline interior and conserve their initial crystal orientations through self-surface diffusion. Moreover, these catalytic particles were even able to become regenerated by other roaming particles after occasionally deactivated by surface coking or multiple-particle sintering. These findings shed light on metabolically driven, "living" nanocrystals, and also open a new avenue for efficient catalysis.