Ali, Ghulam Oh, Si Hyoung Kim, Se Young Kim, Ji Young Cho, Byung Won Chung, Kyung Yoon 2024-01-20T07:03:45Z 2024-01-20T07:03:45Z 2021-09-05 2015-05 2050-7488 https://pubs.kist.re.kr/handle/201004/125491 Cathode materials with high capacity and good stability for rechargeable Na-ion batteries (NIBs) are few in number. Here, we report a composite of electrochemically active iron fluoride hydrate and reduced graphene oxide (rGO) as a promising cathode material for NIBs. Phase-pure FeF3 center dot 0.5H(2)O is synthesized by a non-aqueous precipitation method and a composite with rGO is prepared to enhance the electrical conductivity. The encapsulation of FeF3 center dot 0.5H(2)O nanoparticles between the rGO layers results in a lightweight and stable electrode with a three-dimensional network. The composite material delivers a substantially enhanced discharge capacity of 266 mA h g(-1) compared to 158 mA h g(-1) of the bare FeF3 center dot 0.5H(2)O at a current density of 0.05 C. This composite also shows a stable cycle performance with a high capacity retention of >86% after 100 cycles, demonstrating its potential as a cathode material for NIBs. English ROYAL SOC CHEMISTRY SODIUM-ION SECONDARY BATTERIES FEF3 NANOCRYSTALS LITHIUM BATTERIES LI ELECTRODES COMPOSITE PERFORMANCE STABILITY ANODES An open-framework iron fluoride and reduced graphene oxide nanocomposite as a high-capacity cathode material for Na-ion batteries Article 10.1039/c5ta00643k 1 JOURNAL OF MATERIALS CHEMISTRY A, v.3, no.19, pp.10258 - 10266 JOURNAL OF MATERIALS CHEMISTRY A 3 19 10258 10266 scie scopus 000354204500017 2-s2.0-84928949491 Chemistry, Physical Energy & Fuels Materials Science, Multidisciplinary Chemistry Energy & Fuels Materials Science Article SODIUM-ION SECONDARY BATTERIES FEF3 NANOCRYSTALS LITHIUM BATTERIES LI ELECTRODES COMPOSITE PERFORMANCE STABILITY ANODES Na-ion batteries iron fluoride reduced graphene oxide high capacity