Highly Porous FeS/Carbon Fibers Derived from Fe-Carrageenan Biomass: High-capacity and Durable Anodes for Sodium-Ion Batteries
Author(s)
Li, Daohao
Sun, Yuanyuan
Chen, Shuai
Yao, Jiuyong
Zhang, Yuhui
Xia, Yanzhi
Yang, Dongjiang
Griffith University Author(s)
Year published
2018
Metadata
Show full item recordAbstract
The nanostructured metal sulfides have been reported as promising anode materials for sodium-ion batteries (SIBs) due to their high theoretical capacities but have suffered from the unsatisfactory electronic conductivity and poor structural stability during a charge/discharge process, thus limiting their applications. Herein, the one-dimensional (1D) porous FeS/carbon fibers (FeS/CFs) micro/nanostructures are fabricated through facile pyrolysis of double-helix-structured Fe-carrageenan fibers. The FeS nanoparticles are in situ formed by interacting with sulfur-containing group of natural material ι-carrageenan and uniformly ...
View more >The nanostructured metal sulfides have been reported as promising anode materials for sodium-ion batteries (SIBs) due to their high theoretical capacities but have suffered from the unsatisfactory electronic conductivity and poor structural stability during a charge/discharge process, thus limiting their applications. Herein, the one-dimensional (1D) porous FeS/carbon fibers (FeS/CFs) micro/nanostructures are fabricated through facile pyrolysis of double-helix-structured Fe-carrageenan fibers. The FeS nanoparticles are in situ formed by interacting with sulfur-containing group of natural material ι-carrageenan and uniformly embedded in the unique 1D porous carbon fibrous matrix, significantly enhancing the sodium-ion storage performance. The obtained FeS/CFs with optimized sodium storage performance benefits from the appropriate carbon content (20.9 wt %). The composite exhibits high capacity and excellent cycling stability (283 mAh g–1 at current density of 1 A g–1 after 400 cycles) and rate performance (247 mAh g–1 at 5 A g–1). This work provides a simple strategy to construct 1D porous FeS/CFs micro/nanostructures as high-performance anode materials for SIBs via a unique sustainable and environmentally friendly way.
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View more >The nanostructured metal sulfides have been reported as promising anode materials for sodium-ion batteries (SIBs) due to their high theoretical capacities but have suffered from the unsatisfactory electronic conductivity and poor structural stability during a charge/discharge process, thus limiting their applications. Herein, the one-dimensional (1D) porous FeS/carbon fibers (FeS/CFs) micro/nanostructures are fabricated through facile pyrolysis of double-helix-structured Fe-carrageenan fibers. The FeS nanoparticles are in situ formed by interacting with sulfur-containing group of natural material ι-carrageenan and uniformly embedded in the unique 1D porous carbon fibrous matrix, significantly enhancing the sodium-ion storage performance. The obtained FeS/CFs with optimized sodium storage performance benefits from the appropriate carbon content (20.9 wt %). The composite exhibits high capacity and excellent cycling stability (283 mAh g–1 at current density of 1 A g–1 after 400 cycles) and rate performance (247 mAh g–1 at 5 A g–1). This work provides a simple strategy to construct 1D porous FeS/CFs micro/nanostructures as high-performance anode materials for SIBs via a unique sustainable and environmentally friendly way.
View less >
Journal Title
ACS Applied Materials and Interfaces
Volume
10
Issue
20
Subject
Chemical sciences
Other chemical sciences not elsewhere classified
Engineering