Author Correction: Lattice strain-enhanced exsolution of nanoparticles in thin films.
Author Correction: Lattice strain-enhanced exsolution of nanoparticles in thin films.
复制标题
作者更正：薄膜中纳米颗粒的晶格应变增强解溶。
DOI：
10.1038/s41467-019-10019-0
复制
发表时间：
2019
影响因子：
16.6
通讯作者：
Han H
中科院分区：
文献类型：
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作者：
Han H
在氧化物表面形成的纳米颗粒在催化和可再生能源等许多领域至关重要。在这里，我们通过晶格应变控制B位点的出溶，以实现钙钛矿薄膜中纳米粒子的高度出溶：通过应变控制可以实现超过1100个μm−2的颗粒，粒径小至~5nm。与拉伸应变薄膜相比，压缩应变薄膜显示出更多数量的溶出颗粒。此外，纳米颗粒的应变增强原位生长具有高热稳定性和抗结焦性、低还原温度（550°C）、颗粒快速释放和广泛的可调性。从热力学和动力学方面阐明了晶格应变增强的外溶机制，强调了失配应变弛豫能的独特作用。这项研究不仅为新型纳米结构的设计提供了重要的见解，而且还为催化、能量转换/存储、纳米复合材料、纳米磁性和纳米光学等应用提供了重要的见解。
Nanoparticles formed on oxide surfaces are of key importance in many fields such as catalysis and renewable energy. Here, we control B-site exsolution via lattice strain to achieve a high degree of exsolution of nanoparticles in perovskite thin films: more than 1100 particles μm−2with a particle size as small as ~5 nm can be achieved via strain control. Compressive-strained films show a larger number of exsolved particles as compared with tensile-strained films. Moreover, the strain-enhanced in situ growth of nanoparticles offers high thermal stability and coking resistance, a low reduction temperature (550 °C), rapid release of particles, and wide tunability. The mechanism of lattice strain-enhanced exsolution is illuminated by thermodynamic and kinetic aspects, emphasizing the unique role of the misfit-strain relaxation energy. This study provides critical insights not only into the design of new forms of nanostructures but also to applications ranging from catalysis, energy conversion/storage, nano-composites, nano-magnetism, to nano-optics.