A cobalt-doped hollow ZnS polyhedra@porous carbon shell composite anode for high-rate sodium-ion batteries

Di, Miaoxin; Song, Zhenqi; Chen, Suhua; Bai, Ying

doi:10.1039/d3nr03597b

Cited by 2 publications

(1 citation statement)

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“…The abundant availability of sodium in nature, its low cost, and the rocking-chair Na-ion storage mechanism have led to significant research interest in sodium-ion batteries (SIBs) as a potential alternative to lithium-ion batteries, as evidenced by the attention they have received. 1,2 On the other hand, the Na ion demonstrates reduced reaction kinetics and transport during electrochemical cycling because of its greater ionic radius (around 1.02 Å). It is accompanied by a notable increase in volume, which dramatically affects the electrode's structural stability while charging and discharging.…”

Section: Introductionmentioning

confidence: 99%

Nanoconfinement of ultra-small Bi₂Te₃ nanocrystals on reduced graphene oxide: a pathway to high-performance sodium-ion battery anodes

Cheng,

Li,

Wang

et al. 2024

Nanoscale

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Section: Introductionmentioning

confidence: 99%

Nanoconfinement of ultra-small Bi₂Te₃ nanocrystals on reduced graphene oxide: a pathway to high-performance sodium-ion battery anodes

Cheng,

Li,

Wang

et al. 2024

Nanoscale

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Enhancing the Sodium Storage of Zinc Oxide through Built-in Electric Field in N-Doped Carbon Coated ZnO/ZnS Heterostructures

Feng,

Guo,

Zhang

et al. 2024

Energy Fuels

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Conversion-type anode zinc oxide (ZnO) has been considered one of the most promising anode materials for sodium ion batteries (SIB) due to its high theoretical capacities and appropriate working potential. Nevertheless, ZnO-based anodes suffer from huge volume change, poor electrical conductivity, and serious capacity decay during the sodiation/desodiation process. Constructing heterostructures is an efficient strategy to enhance sodium storage. The built-in electric field induced within heterostructures facilitates the diffusion of sodium ions and insertion progress for the batteries. Here, a hollow ZnO/ZnS heterostructure with a nitrogen-doped carbon coating layer (ZnO/ ZnS@NC) was rationally designed through a facile multistep strategy of template-involved sulfidation, etching, polydopamine (PDA) coating, and a pyrolysis process. The heterostructure interface was demonstrated by HRTEM. XPS analysis indicated the existence of abundant covalent S−O bonds in ZnO/ZnS@NC, which might induce a built-in electric field in the heterostructure of the oxide and sulfide. The N-doped carbon coating not only suppresses zinc oxide aggregation but also buffers volume expansion during the sodiation/desodiation process. Consequently, the ZnO/ZnS@NC heterostructures exhibit improved Na + storage capacity compared with that of ZnO nanorods. Combined with in situ XRD, the conversion-alloy mechanism of the ZnO/ZnS@NC heterostructure was disclosed. As anodes for SIBs, the hollow ZnO/ZnS@NC heterostructure exhibits better electrochemical performance than most reported zinc-oxide-based anodes for SIBs. The in situ disclosed reaction provides insights into the electrochemical sodiation mechanism of metal oxides and sulfides for sodium ion batteries.

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A cobalt-doped hollow ZnS polyhedra@porous carbon shell composite anode for high-rate sodium-ion batteries

Abstract: Transition metal sulfides (TMSs) have drawn promising attention due to their low cost and high theoretical capacity for sodium storage. However, the critical issue of TMSs with huge volume changes...

Cited by 2 publications

References 38 publications

Nanoconfinement of ultra-small Bi₂Te₃ nanocrystals on reduced graphene oxide: a pathway to high-performance sodium-ion battery anodes

Nanoconfinement of ultra-small Bi₂Te₃ nanocrystals on reduced graphene oxide: a pathway to high-performance sodium-ion battery anodes

Enhancing the Sodium Storage of Zinc Oxide through Built-in Electric Field in N-Doped Carbon Coated ZnO/ZnS Heterostructures

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A cobalt-doped hollow ZnS polyhedra@porous carbon shell composite anode for high-rate sodium-ion batteries

Abstract: Transition metal sulfides (TMSs) have drawn promising attention due to their low cost and high theoretical capacity for sodium storage. However, the critical issue of TMSs with huge volume changes...

Cited by 2 publications

References 38 publications

Nanoconfinement of ultra-small Bi2Te3 nanocrystals on reduced graphene oxide: a pathway to high-performance sodium-ion battery anodes

Nanoconfinement of ultra-small Bi2Te3 nanocrystals on reduced graphene oxide: a pathway to high-performance sodium-ion battery anodes

Enhancing the Sodium Storage of Zinc Oxide through Built-in Electric Field in N-Doped Carbon Coated ZnO/ZnS Heterostructures

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Product

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Nanoconfinement of ultra-small Bi₂Te₃ nanocrystals on reduced graphene oxide: a pathway to high-performance sodium-ion battery anodes

Nanoconfinement of ultra-small Bi₂Te₃ nanocrystals on reduced graphene oxide: a pathway to high-performance sodium-ion battery anodes