Sodium-Ion Storage Properties of FeS-Reduced Graphene Oxide Composite Powder with a Crumpled Structure

Chemistry : a European Journal
Seung Yeon Lee, Yun Chan Kang

Abstract

The sodium-ion storage properties of FeS-reduced graphene oxide (rGO) and Fe3 O4 -rGO composite powders with crumpled structures have been studied. The Fe3 O4 -rGO composite powder, prepared by one-pot spray pyrolysis, could be transformed to an FeS-rGO composite powder through a simple sulfidation treatment. The mean size of the Fe3 O4 nanocrystals in the Fe3 O4 -rGO composite powder was 4.4 nm. After sulfidation, FeS nanocrystals of size several hundred nanometers were confined within the crumpled structure of the rGO matrix. The initial discharge capacities of the FeS-rGO and Fe3 O4 -rGO composite powders were 740 and 442 mA h g(-1) , and their initial charge capacities were 530 and 165 mA h g(-1) , respectively. The discharge capacities of the FeS-rGO and Fe3 O4 -rGO composite powders at the 50th cycle were 547 and 150 mA h g(-1) , respectively. The FeS-rGO composite powder showed superior sodium-ion storage performance compared to the Fe3 O4 -rGO composite powder.

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Citations

Jun 20, 2017·ACS Applied Materials & Interfaces·Xia WangYang-Kook Sun
Mar 30, 2017·Chemical Society Reviews·Jang-Yeon HwangYang-Kook Sun
May 23, 2020·Advanced Science·Jie YinChun-Hua Yan
Mar 21, 2019·Macromolecular Rapid Communications·Sun Kyung KimHee Dong Jang
Jul 25, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Anupriya K HaridasJou-Hyeon Ahn
Oct 25, 2017·ACS Applied Materials & Interfaces·Ying XiaoYang-Kook Sun
Dec 24, 2016·ACS Applied Materials & Interfaces·Kongyao ChenYunhui Huang
Nov 1, 2018·ACS Applied Materials & Interfaces·Yuhui ZhangDongjiang Yang
Nov 13, 2021·ACS Applied Materials & Interfaces·Yuhan WuYong Lei

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