A facile precursor route towards the synthesis of Fe<sub>1−<i>x</i></sub>S@NC-rGO composite anode materials for high-performance lithium-ion batteries

Zhan, Guanghao; Yan, Ruibo; Liao, Wenhua; Hu, Qianqian; Huang, Xiaoying

doi:10.1039/d2dt03883h

Cited by 2 publications

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“…In contrast, the b value of Sb 2 S 3 /SnO 2 @rGO is significantly improved, indicating that the formation of the p–n heterojunction improves the rate performance of the electrode material. 49 The pseudocapacitance contribution is further quantified using the following formula: i ( v ) = k 1 v + k 2 v 1/2 where k 1 v and k 2 v 1/2 represent the capacitance and diffusion behaviour, respectively. As shown in Fig.…”

Section: Resultsmentioning

confidence: 99%

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p–n heterogeneous Sb₂S₃/SnO₂ quantum dot anchored reduced graphene oxide nanosheets for high-performance lithium-ion batteries

Yin,

Zhan,

Yan

et al. 2024

Dalton Trans.

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Section: Resultsmentioning

confidence: 99%

“…In contrast, the b value of Sb 2 S 3 /SnO 2 @rGO is significantly improved, indicating that the formation of the p-n heterojunction improves the rate performance of the electrode material. 49 The pseudocapacitance contribution is further quantified using the following formula:…”

Section: Dalton Transactions Papermentioning

confidence: 99%

p–n heterogeneous Sb₂S₃/SnO₂ quantum dot anchored reduced graphene oxide nanosheets for high-performance lithium-ion batteries

Yin,

Zhan,

Yan

et al. 2024

Dalton Trans.

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Regenerated Natural Minerals towards Double‐layers Heterojunctions Metal@metal‐sulfides with Remarkable Conductivity for Ultra‐fast Sodium‐ion Storage

Yuan,

Li,

Xia

et al. 2024

Adv Funct Materials

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Attracted by the high specific capacity and energy density, transition metal‐sulfides exhibit great application potential as sodium‐ion batteries anode, but still suffer from the uncontrolled separation of M/S phase and inferior conductivity. Herein, the flower‐like Fe1‐xS@Sb@C (FF) is rationally tailored, accompanied by double‐layer heterojunctions and C–S–Sb/Sb–S–Fe “bridge” bonds. Meanwhile, the bimetallic phases/boundary defects and built‐in electric fields are formed with a strong electronic coupling effect, effectively alleviating the separation of the M/S phase (Fe/Sb and S), and significantly enhancing ion/e− conductivity. As expected, FF delivers an ultra‐fast sodium‐ions storage rate capacity of 436.5/334.3 mAh g−1 even at 10.0/20.0 A g−1. When the operation temperature is lowered to ‐5 °C, the reversible capacity can still remain at ≈349.7 mAh g−1. Assisted by the detailed kinetic analysis and theoretical calculations, their great ion‐storage abilities mainly derive from improved interfacial Na+/e− transfer and surface/near‐surface redox behaviors. Moreover, the reassembling evolution of active phases is revealed by in/ex situ techniques, further demonstrating the stable adsorption/anchoring of intermediate reaction products Fe/Sb–S phases on the heterointerface, accompanying high reversible conversion‐alloying reaction. Given this, this interesting work is anticipated to offer an in‐depth insight into capacity fading mechanism, and effective strategy to design metal‐sulfur anodes for advanced sodium‐ion systems.

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A facile precursor route towards the synthesis of Fe_1−xS@NC-rGO composite anode materials for high-performance lithium-ion batteries

Abstract: Iron-based sulfides are considered promising anode materials for lithium-ion batteries (LIBs) due to their low cost and high theoretical specific capacities. However, low conductivity and dissolution of lithium polysulfides during...

Cited by 2 publications

References 59 publications

p–n heterogeneous Sb₂S₃/SnO₂ quantum dot anchored reduced graphene oxide nanosheets for high-performance lithium-ion batteries

p–n heterogeneous Sb₂S₃/SnO₂ quantum dot anchored reduced graphene oxide nanosheets for high-performance lithium-ion batteries

Regenerated Natural Minerals towards Double‐layers Heterojunctions Metal@metal‐sulfides with Remarkable Conductivity for Ultra‐fast Sodium‐ion Storage

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A facile precursor route towards the synthesis of Fe1−xS@NC-rGO composite anode materials for high-performance lithium-ion batteries

Abstract: Iron-based sulfides are considered promising anode materials for lithium-ion batteries (LIBs) due to their low cost and high theoretical specific capacities. However, low conductivity and dissolution of lithium polysulfides during...

Cited by 2 publications

References 59 publications

p–n heterogeneous Sb2S3/SnO2 quantum dot anchored reduced graphene oxide nanosheets for high-performance lithium-ion batteries

p–n heterogeneous Sb2S3/SnO2 quantum dot anchored reduced graphene oxide nanosheets for high-performance lithium-ion batteries

Regenerated Natural Minerals towards Double‐layers Heterojunctions Metal@metal‐sulfides with Remarkable Conductivity for Ultra‐fast Sodium‐ion Storage

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A facile precursor route towards the synthesis of Fe_1−xS@NC-rGO composite anode materials for high-performance lithium-ion batteries

p–n heterogeneous Sb₂S₃/SnO₂ quantum dot anchored reduced graphene oxide nanosheets for high-performance lithium-ion batteries

p–n heterogeneous Sb₂S₃/SnO₂ quantum dot anchored reduced graphene oxide nanosheets for high-performance lithium-ion batteries