Work

Analyzing potassium-ion diffusion in aqueous solutions through pulsed-field gradient NMR

Year: 2026

Type: article

Abstract: The diffusion behavior of potassium ions in aqueous solutions is crucial for advancing both fundamental science and practical applications. Pulsed-field gradient nuclear magnetic resonance (PFG-NMR) is a powerful technique for evaluating ion diffusion. However, its application to potassium has been limited by low Larmor frequency. This study reports the successful measurement of potassium-ion diffusion coefficients in various salt solutions using 39K PFG-NMR through optimizing experimental conditions. The reported data will benefit the development of advanced devices such as potassium-ion batteries.

Source: Chemistry Letters

DOI: 10.1093/chemle/upaf243

Authors: Hideka Ando, Kenjiro Hashi, Shinobu Ohki, Yuuki Mogami

Institution: National Institute for Materials Science

Language: English

Topic: NMR spectroscopy and applications

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $1,003

Funders: Ministry of Education, Culture, Sports, Science and Technology, Japan Society for the Promotion of Science, National Institute for Materials Science