Preparation of Nanoparticles and Diffusion Behavior of Metal Ions in Ionic Liquids

• Published in: Chemical record Vol. 23; no. 8; pp. e202300110 - n/a
• Main Author: Imanishi, Akihito
• Format: Journal Article
• Language: English
• Published: United States Wiley Subscription Services, Inc 01.08.2023
• Subjects: Chemical reactions; Diffusion; Electrochemistry; Electron beams; Hopping; Ionic liquids; Local structure; Metal ions; Metal particles; Nanoparticles; Particle beams; Electrochemistry; Ionic liquids; Local structure; Hopping; Diffusion
• ISSN: 1527-8999; 1528-0691
• DOI: 10.1002/tcr.202300110

Ionic liquids (ILs) have attracted much attention as tunable liquids because of their unique structures and properties. However, the mechanisms of chemical reactions and solute diffusion in ionic liquids are still unknown. This article summarizes our previous studies and recent results on the mechanisms of metal particle formation and solute diffusion in ionic liquids, focusing on the local structure of ionic liquids. It was found that the shape and size of metal particles formed in ionic liquids using electron beams or X‐rays are strongly influenced by the local structure. In the study of the diffusion behavior of metal ions in ionic liquids, we proposed a hopping‐like diffusion model and proposed that this behavior could be strongly influenced by local structures such as hole concentration and/or domain structures. Ionic liquids, despite being liquids, are known for their local structure. Such local structures of ionic liquids can be expected to have an influence on (electro) chemical reactions and mass transport in ionic liquids. However, there are still many unknowns regarding the mechanisms involved. This article summarizes our previous and recent studies on the mechanisms of metal particle formation and solute diffusion in ionic liquids, focusing on the local structure of ionic liquids.