Interplay between Chemical Transformations and Atomic Structure in Nanocrystals and Nanoclusters,Accounts of Chemical Research

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Interplay between Chemical Transformations and Atomic Structure in Nanocrystals and Nanoclusters
Accounts of Chemical Research ( IF 16.4 ) Pub Date : 2021-01-12 , DOI: 10.1021/acs.accounts.0c00704
Haixiang Han ₁ , Yuan Yao ₁ , Richard D. Robinson ₁

Affiliation

Chemically induced transformations are postsynthetic processing reactions applied to first generation (as-synthesized) nanomaterials to modify property-defining factors such as atomic structure, chemical composition, surface chemistry, and/or morphology. Compared with conditions for direct synthesis of colloidal nanocrystals, postsynthetic chemical transformations can be conducted in relatively mild conditions with a more controllable process, which makes them suitable for the precise manipulation of nanomaterials and for trapping metastable phases that are typically inaccessible from the conventional synthetic routes. Each of the chemically induced transformations methods can result in substantial restructuring of the atomic structure, but their transformation pathways can be very different. And the converse is also true: the atomic structure of the parent material plays a large role in the pathway toward and the resulting chemically transformed product. Additionally, the characteristic length of the parent material greatly affects the structure, which affects the outcome of the reaction.

中文翻译：

纳米晶体和纳米团簇中化学转化与原子结构之间的相互作用

化学诱导的转化是应用于第一代（合成后的）纳米材料的后合成加工反应，用于修饰性质限定因素，例如原子结构，化学组成，表面化学和/或形态。与直接合成胶体纳米晶体的条件相比，合成后化学转化可以在相对温和的条件下以更可控的过程进行，这使其适合于纳米材料的精确处理和捕获通常无法通过常规合成途径获得的亚稳态相。。每种化学诱导的转化方法均可导致原子结构的实质性重组，但它们的转化途径可能非常不同。反之亦然：母体材料的原子结构在通往最终化学转化产物的途径中起着重要作用。另外，母体材料的特征长度极大地影响了结构，从而影响了反应的结果。

更新日期：2021-02-02

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