气候变化领域集成服务门户(CCPortal): Critical differences in 3D atomic structure of individual ligand-protected nanocrystals in solution

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DOI	10.1126/science.aax3233
	Critical differences in 3D atomic structure of individual ligand-protected nanocrystals in solution
	Kim B.H.; Heo J.; Kim S.; Reboul C.F.; Chun H.; Kang D.; Bae H.; Hyun H.; Lim J.; Lee H.; Han B.; Hyeon T.; Paul Alivisatos A.; Ercius P.; Elmlund H.; Park J.
发表日期	2020
ISSN	0036-8075
卷号	368 期号:6486
英文摘要	Precise three-dimensional (3D) atomic structure determination of individual nanocrystals is a prerequisite for understanding and predicting their physical properties. Nanocrystals from the same synthesis batch display what are often presumed to be small but possibly important differences in size, lattice distortions, and defects, which can only be understood by structural characterization with high spatial 3D resolution. We solved the structures of individual colloidal platinum nanocrystals by developing atomic-resolution 3D liquid-cell electron microscopy to reveal critical intrinsic heterogeneity of ligand-protected platinum nanocrystals in solution, including structural degeneracies, lattice parameter deviations, internal defects, and strain. These differences in structure lead to substantial contributions to free energies, consequential enough that they must be considered in any discussion of fundamental nanocrystal properties or applications. © 2020 American Association for the Advancement of Science. All rights reserved.
关键词	ligand nanocrystal platinum nanoparticle crystal structure electron microscopy lattice dynamics ligand nanoparticle three-dimensional modeling Article atom catalysis chemical binding chemical composition chemical procedures concentration (parameter)crystal structure degradation electron microscopy image analysis liquid crystal nanoanalysis priority journal structure analysis surface property synthesis
语种	英语
来源机构	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/133590
推荐引用方式 GB/T 7714	Kim B.H.,Heo J.,Kim S.,et al. Critical differences in 3D atomic structure of individual ligand-protected nanocrystals in solution[J]. Science,2020,368(6486).
APA	Kim B.H..,Heo J..,Kim S..,Reboul C.F..,Chun H..,...&Park J..(2020).Critical differences in 3D atomic structure of individual ligand-protected nanocrystals in solution.,368(6486).
MLA	Kim B.H.,et al."Critical differences in 3D atomic structure of individual ligand-protected nanocrystals in solution".368.6486(2020).