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S-doped porous carbon anode with superior capacity for high-performance sodium storage.

ABSTRACT: Heterogeneous carbon-based materials with high porosity are attracting increased attention for energy storage due to their enhanced capacity and rate performance. Herein, we report a sulfur-doped porous carbon material, which is achieved by spray-drying and subsequent sulfuration. The porous structure can provide vast diffusive tunnels for the fast access of electrolytes and sodium ions. Also, the S-C bond increases the electrical conductivity of the carbon frameworks and offers excessive reaction sites for sodium-ion storage. The elaborated carbon architecture enables a high capacity of 370 mA h g^-1 at 0.5 A g^-1 and provides an excellent rate performance for long-term cycling (197 mA h g^-1 at 2.0 A g^-1 for 650 cycles). Considering the scalable and facile spray-pyrolysis preparation route, this material is expected to serve as a low-cost and environmentally friendly anode for practical sodium-ion batteries.

SUBMITTER: Liang Y

PROVIDER: S-EPMC9054598 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature

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S-doped porous carbon anode with superior capacity for high-performance sodium storage.

Liang Yaru Y Liu Rutie R Xiong Xiang X

RSC advances 20200612 38

Heterogeneous carbon-based materials with high porosity are attracting increased attention for energy storage due to their enhanced capacity and rate performance. Herein, we report a sulfur-doped porous carbon material, which is achieved by spray-drying and subsequent sulfuration. The porous structure can provide vast diffusive tunnels for the fast access of electrolytes and sodium ions. Also, the S-C bond increases the electrical conductivity of the carbon frameworks and offers excessive reacti ...[more]

PMID: 35514598

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