Nanometer and subnanometer particles and films are becoming an essential and integral part of new technologies and inventions in different areas. Some of the most common areas include the microelectronic industry, magnetic recordings, photovoltaic applications, and optical coatings. Because of the ultrasmall size at atomic levels, the effect of quantum size becomes prominent, and the sensitivity of size is defined even by a difference of a single atom. Additionally, the effect is of utmost importance as the single-atom catalysts are far more advantageous than conventional catalysts as they tend to anchor easily because of their low coordination. Also, the presence of a single-atom catalyst in reactions creates efficient charge transfer as it forms a strong interaction with the support. Furthermore, catalysts in the subnanometer regime exhibit different electronic states and adsorption capabilities compared to traditional catalysts. Therefore, to fully appreciate the subnanometer catalysis reactions, it is essential to study the means of characterizing the prepared subnano catalysts, in order to characterize the materials in their as-synthesized form, to obtain a precise and accurate analysis; these are some of the fundamental requirements for achieving an optimum performance. The physical properties of many interesting materials for advanced technological usage are highly governed by the distribution and placement of atoms. Superior techniques such as high-resolution transmission electron microscopy and high-angle annular dark-field scanning transmission electron microscopy and infrared and X-ray absorption spectroscopic techniques provide electronic and geometric configurations and also reveal the transformation of the subnano catalysts on the support material. Modeling methods such as density functional theory can successfully predict the electronic structure and geometric configuration of the catalyst, which in turn influence the selectivity and activity of the catalyst. Thus, understanding the characterization techniques gives the ability to understand, identify, and measure the local environment of individual atoms and the interaction with the surface support, which will give fundamental knowledge and insights in the realms of nanoscience and technology, materials science, chemistry, and physics. Therefore, detection and enhanced measurement
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.