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N-Doped Carbon Modifying MoSSe Nanosheets on Hollow Cubic Carbon for High-Performance Anodes of Sodium-Based Dual-Ion Batteries

机译:基于钠基双离子电池的高性能阳极的中空立方碳的N掺杂碳改性Moss纳米片

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摘要

Sodium-based dual-ion batteries (SDIBs) have been envisaged as one of the promising rechargeable energy storage devices by virtue of the low cost and considerably high energy density. But the exploration of high-performance anode materials yet remain a grand challenge. Herein, an elaborate design is reported to fabricate nanohybrids of N-doped carbon film modifying MoSSe nanosheets supported on hollow cubic N-doped carbon (MoSSeNSs@NC/hC-NC), which features abundant anionic defects, few-layered MoSSe with expanded interlayer spacing, good conductivity, and hollow structure. These favorable properties and structure are greatly conducive for Na+ storage, as evidenced by displaying desirable electrochemical properties of high capacity, good rate capability, and excellent stability. The impressive capability for Na+ storage in the MoSSeNSs@NC/hC-NC motivates to set up a full SDIBs device by coupling with EG cathode, which show a discharge capacity of 185 mA h g(-1) at 1 A g(-1) with the capacity retention of almost 100% over 2000 cycles.
机译:通过低成本和显着高能量密度,已设想基于钠的双离子电池(SDIB)作为承受的可充电能量存储装置之一。但对高性能阳极材料的探索仍然是一个大挑战。据报道,据报道,制造精细设计,用于制造在中空立方N掺杂碳(Mossenss @ NC / HC-NC)上负载的N掺杂碳膜改性Mosse纳米液的纳米组织,其具有丰富的阴离子缺陷,几个层叠的夹层是膨胀的中间层间距,良好的导电性和空心结构。这些有利的性质和结构极大地利用了Na +储存,如通过显示高容量,良好的速率能力和优异稳定性的理想电化学性能所证明的。 Mossenss @ NC / HC-NC中Na +储存的令人印象深刻的能力,通过与例如阴极耦合来设置完整的SDIBS装置,其在1A(-1)下显示185 mA Hg(-1)的放电容量容量保留超过2000次循环近100%。

著录项

  • 来源
    《Advanced Functional Materials》 |2021年第31期|2101066.1-2101066.9|共9页
  • 作者单位

    Chinese Acad Sci Fujian Inst Res Struct Matter CAS Key Lab Design & Assembly Funct Nanostruct Fujian Prov Key Lab Nanomat Fuzhou 350002 Fujian Peoples R China|Univ Chinese Acad Sci Beijing 100049 Peoples R China;

    Chinese Acad Sci Fujian Inst Res Struct Matter CAS Key Lab Design & Assembly Funct Nanostruct Fujian Prov Key Lab Nanomat Fuzhou 350002 Fujian Peoples R China|Fuzhou Univ Coll Mat Sci & Engn Fuzhou 350108 Peoples R China;

    Chinese Acad Sci Fujian Inst Res Struct Matter CAS Key Lab Design & Assembly Funct Nanostruct Fujian Prov Key Lab Nanomat Fuzhou 350002 Fujian Peoples R China|Fuzhou Univ Coll Mat Sci & Engn Fuzhou 350108 Peoples R China;

    Chinese Acad Sci Fujian Inst Res Struct Matter CAS Key Lab Design & Assembly Funct Nanostruct Fujian Prov Key Lab Nanomat Fuzhou 350002 Fujian Peoples R China|Fuzhou Univ Coll Mat Sci & Engn Fuzhou 350108 Peoples R China;

    Chinese Acad Sci Fujian Inst Res Struct Matter CAS Key Lab Design & Assembly Funct Nanostruct Fujian Prov Key Lab Nanomat Fuzhou 350002 Fujian Peoples R China;

    Chinese Acad Sci Fujian Inst Res Struct Matter CAS Key Lab Design & Assembly Funct Nanostruct Fujian Prov Key Lab Nanomat Fuzhou 350002 Fujian Peoples R China|Fuzhou Univ Coll Mat Sci & Engn Fuzhou 350108 Peoples R China;

    Chinese Acad Sci Fujian Inst Res Struct Matter CAS Key Lab Design & Assembly Funct Nanostruct Fujian Prov Key Lab Nanomat Fuzhou 350002 Fujian Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    anionic defects; dual N#8208; doped carbon layers; few#8208; layered MoSSe; hollow nanoboxes; sodium based dual#8208; ion batteries;

    机译:阴离子缺陷;双N‐掺杂的碳层;少量‐分层Mosse;中空纳米氧化;基于钠的双重‐离子电池;

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