Phosphorus/nitrogen co-doped hollow carbon fibers enabling high-rate potassium storage

Zhou, Yu; Tian, Shuang; Jia, Min-Yu; Gao, Pei-Bo; Yin, Guang-Chao; Wang, Xiao-Mei; Mu, Jing-Lin; Zhou, Jin; Zhou, Tong

doi:10.1007/s12598-023-02326-9

Cited by 9 publications

(1 citation statement)

References 53 publications

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“…The composite maintains a specific capacity of 100 mA h g –1 after 1200 cycles at a current density of 5 A g –1 . Zhou et al synthesized phosphorus/nitrogen Co-doped hollow carbon fibers with remarkable ultrahigh multiplicity performance, releasing 140 mA h g –1 at 50 A g –1 and maintaining 91% of discharge capacity after 20,000 cycles. – …”

Section: Resultsmentioning

confidence: 99%

ZnS/SnS₂ Heterostructures Encapsulated in N-Doped Carbon Nanofibers for High-Performance Alkali Metal-Ion Batteries

Yang,

Miao,

Zhong

et al. 2023

ACS Appl. Mater. Interfaces

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Heterogeneous composite ZnS/SnS 2 is designed to meet various requirements for alkali metal-ion batteries. The composite is prepared using an electrostatic spinning method and encapsulated in Ndoped carbon fibers after high-temperature vulcanization. The special structure of the composite provides a dependable interconnection and fast conductive network for alkali metal ions. The conductive carbon network shortens the diffusion path and greatly improves the migration efficiency of the alkali metal ions in the electrode. As expected, when the current density is 0.1 A g −1 , the ZnS/SnS 2 @NCNFs maintain a high discharge capacity of more than 1437.5, 1321.2, and 861.6 mA h g −1 for lithium-ion, sodium-ion, and potassium-ion batteries, respectively. What is more, a full cell using a prelithiated composite anode and a LiFePO 4 cathode is tested and shows excellent electrochemical performance. This work provides new perspectives for the development of novel anodes that can efficiently store alkali metal ions, as well as for the finestructure design of materials.

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Section: Resultsmentioning

confidence: 99%

ZnS/SnS₂ Heterostructures Encapsulated in N-Doped Carbon Nanofibers for High-Performance Alkali Metal-Ion Batteries

Yang,

Miao,

Zhong

et al. 2023

ACS Appl. Mater. Interfaces

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Precursor‐Mediated Direct Growth of Defect‐Rich Hierarchical Nanocarbons for Electrocatalytic Hydrogen Peroxide Production^†

Sun,

Lu,

Chen

et al. 2024

Chin. J. Chem.

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Comprehensive SummaryCarbon‐based nanomaterials show great potential in selective electrochemical oxygen reduction reaction (ORR) through two‐electron (2e−) pathway for H2O2 production, which provides an eco‐friendly alternative to industrial energy‐intensive anthraquinone process. However, it still remains challenging to directly construct topological defects, which makes it difficult to study the working mechanism on 2e– ORR. Herein, we propose a precursor‐mediated chemical vapor deposition (CVD) approach for direct growth of topological defect‐rich hierarchical nanocarbons. Boric acid (H3BO3) is introduced into the precursor for disturbing the nucleation and growth through decomposing B‐containing species, which can in situ induce the formation of pentagon defects. The topological defect is found to be capable of introducing lattice strain, which can modify the electronic structure of nanocarbons and promote the key intermediate (*OOH) formation, thus greatly enhancing the 2e– ORR performance. Experimentally, the 2e– ORR selectivity shows a positive correlation to the topological defect density, where the average H2O2 selectivity reaches above 90% over a wide potential range with optimized concentration of H3BO3 as mediator. Moreover, in a flow cell, the hierarchical nanocarbons achieve a high H2O2 production rate of 998 mmol·gcatalyst−1·h−1 over 20 h of continuous electrocatalysis with stable current density (>100 mA·cm–2) and Faradaic efficiency (> 90%). This work provides a straightforward method for the synthesis of active metal‐free carbon‐based catalyst for sustainable H2O2 production.

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Novel N-doped multichannel carbon nanofiber architecture with porous CoS nanoprisms for high-performance potassium-ion batteries

Lim,

Park

2023

Rare Met.

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Phosphorus/nitrogen co-doped hollow carbon fibers enabling high-rate potassium storage

Cited by 9 publications

References 53 publications

ZnS/SnS₂ Heterostructures Encapsulated in N-Doped Carbon Nanofibers for High-Performance Alkali Metal-Ion Batteries

ZnS/SnS₂ Heterostructures Encapsulated in N-Doped Carbon Nanofibers for High-Performance Alkali Metal-Ion Batteries

Precursor‐Mediated Direct Growth of Defect‐Rich Hierarchical Nanocarbons for Electrocatalytic Hydrogen Peroxide Production^†

Novel N-doped multichannel carbon nanofiber architecture with porous CoS nanoprisms for high-performance potassium-ion batteries

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Phosphorus/nitrogen co-doped hollow carbon fibers enabling high-rate potassium storage

Cited by 9 publications

References 53 publications

ZnS/SnS2 Heterostructures Encapsulated in N-Doped Carbon Nanofibers for High-Performance Alkali Metal-Ion Batteries

ZnS/SnS2 Heterostructures Encapsulated in N-Doped Carbon Nanofibers for High-Performance Alkali Metal-Ion Batteries

Precursor‐Mediated Direct Growth of Defect‐Rich Hierarchical Nanocarbons for Electrocatalytic Hydrogen Peroxide Production†

Novel N-doped multichannel carbon nanofiber architecture with porous CoS nanoprisms for high-performance potassium-ion batteries

Contact Info

Product

Resources

About

ZnS/SnS₂ Heterostructures Encapsulated in N-Doped Carbon Nanofibers for High-Performance Alkali Metal-Ion Batteries

ZnS/SnS₂ Heterostructures Encapsulated in N-Doped Carbon Nanofibers for High-Performance Alkali Metal-Ion Batteries

Precursor‐Mediated Direct Growth of Defect‐Rich Hierarchical Nanocarbons for Electrocatalytic Hydrogen Peroxide Production^†