Site-Selective investigation of high rate Prussian Blue Cathode Materials for Sodium-Ion Batteries
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下载链接：
https://doi.esrf.fr/10.15151/ESRF-ES-2118294202
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资源简介：
Sodium-ion batteries are a promising, cost-effective alternative to cobalt-based systems, with Prussian Blue (PB) as a standout cathode material. While their electrochemical performance is competitive, the underlying reaction mechanisms, especially at high cycling rates, remain unclear. Operando Mössbauer spectroscopy, XRD, and XAS have provided insights into iron evolution during low-rate cycling (0.05C–0.1C), but the reaction pathway at high rates (1C–5C) is still unknown. Furthermore, conventional methods struggle to distinguish low-spin (LS) Fe²⁺ and Fe³⁺ sites due to similar hyperfine parameters. This study aims to employ site-selective enrichment and Synchrotron Mössbauer Spectroscopy (SMS) at ESRF’s ID14 beamline to study these iron sites and reveal the features of high-rate cycling in comparison with low-rate mechanisms.
提供机构：
Dalian Institute of Chemical Physics, CAS, Dalian National Laboratory for Clean Energy, 457 Zhongshan Road, 116023 Dalian, China; South Central Minzu University, School of Chemistry and Materials Science, Minzu Road 182, Wuhan, China, 430074, Wuhan, CHINA; Institut Charles Gerhardt Montpellier ICGM), Dep. D4 - CMNME, Pôle Chimie Balard Recherche 1919 route de Mende, 34293, Montpellier, FR; Dalian Institute of Chemical Physics, CAS, Dalian National Laboratory for Clean Energy, 457 Zhongshan Road, 116023 , Dalian, CHINA
创建时间：
2028-01-01
