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Porous Carbon Nanofibers Encapsulated with Peapod-Like Hematite Nanoparticles for High-Rate and Long-Life Battery Anodes.

To purchase or authenticate to the full-text of this article, please visit this link: http://onlinelibrary.wiley.com/doi/10.1002/smll.201701561/abstract Byline: Guanglin Xia, Qili Gao, Dalin Sun, Xuebin Yu Keywords: electrospinning; iron oxide; lithium-ion batteries; porous carbon nanofibers; sodium... Full description

Journal Title: Small (Weinheim an der Bergstrasse Germany), November 2017, Vol.13(44)
Main Author: Xia, Guanglin
Other Authors: Gao, Qili , Sun, Dalin , Yu, Xuebin
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: E-ISSN: 1613-6829 ; DOI: 1613-6829 ; DOI: 10.1002/smll.201701561
Link: http://search.proquest.com/docview/1920394632/?pq-origsite=primo
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title: Porous Carbon Nanofibers Encapsulated with Peapod-Like Hematite Nanoparticles for High-Rate and Long-Life Battery Anodes.
format: Article
creator:
  • Xia, Guanglin
  • Gao, Qili
  • Sun, Dalin
  • Yu, Xuebin
subjects:
  • Electrospinning
  • Iron Oxide
  • Lithium-Ion Batteries
  • Porous Carbon Nanofibers
  • Sodium-Ion Batteries
ispartof: Small (Weinheim an der Bergstrasse, Germany), November 2017, Vol.13(44)
description: To purchase or authenticate to the full-text of this article, please visit this link: http://onlinelibrary.wiley.com/doi/10.1002/smll.201701561/abstract Byline: Guanglin Xia, Qili Gao, Dalin Sun, Xuebin Yu Keywords: electrospinning; iron oxide; lithium-ion batteries; porous carbon nanofibers; sodium-ion batteries Abstract Fe.sub.2O.sub.3 is regarded as a promising anode material for lithium-ion batteries (LIBs) and sodium-ion batteries (SIBs) due to its high specific capacity. The large volume change during discharge and charge processes, however, induces significant cracking of the Fe.sub.2O.sub.3 anodes, leading to rapid fading of the capacity. Herein, a novel peapod-like nanostructured material, consisting of Fe.sub.2O.sub.3 nanoparticles homogeneously encapsulated in the hollow interior of N-doped porous carbon nanofibers, as a high-performance anode material is reported. The distinctive structure not only provides enough voids to accommodate the volume expansion of the pea-like Fe.sub.2O.sub.3 nanoparticles but also offers a continuous conducting framework for electron transport and accessible nanoporous channels for fast diffusion and transport of Li/Na-ions. As a consequence, this peapod-like structure exhibits a stable discharge capacity of 1434 mAh g.sub.-1 (at 100 mA g.sub.-1) and 806 mAh g.sub.-1 (at 200 mA g.sub.-1) over 100 cycles as anode materials for LIBs and SIBs, respectively. More importantly, a stable capacity of 958 mAh g.sub.-1 after 1000 cycles and 396 mAh g.sub.-1 after 1500 cycles can be achieved for LIBs and SIBs, respectively, at a large current density of 2000 mA g.sub.-1. This study provides a promising strategy for developing long-cycle-life LIBs and SIBs. CAPTION(S): Supplementary
language: eng
source:
identifier: E-ISSN: 1613-6829 ; DOI: 1613-6829 ; DOI: 10.1002/smll.201701561
fulltext: fulltext
issn:
  • 16136829
  • 1613-6829
url: Link


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titlePorous Carbon Nanofibers Encapsulated with Peapod-Like Hematite Nanoparticles for High-Rate and Long-Life Battery Anodes.
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descriptionTo purchase or authenticate to the full-text of this article, please visit this link: http://onlinelibrary.wiley.com/doi/10.1002/smll.201701561/abstract Byline: Guanglin Xia, Qili Gao, Dalin Sun, Xuebin Yu Keywords: electrospinning; iron oxide; lithium-ion batteries; porous carbon nanofibers; sodium-ion batteries Abstract Fe.sub.2O.sub.3 is regarded as a promising anode material for lithium-ion batteries (LIBs) and sodium-ion batteries (SIBs) due to its high specific capacity. The large volume change during discharge and charge processes, however, induces significant cracking of the Fe.sub.2O.sub.3 anodes, leading to rapid fading of the capacity. Herein, a novel peapod-like nanostructured material, consisting of Fe.sub.2O.sub.3 nanoparticles homogeneously encapsulated in the hollow interior of N-doped porous carbon nanofibers, as a high-performance anode material is reported. The distinctive structure not only provides enough voids to accommodate the volume expansion of the pea-like Fe.sub.2O.sub.3 nanoparticles but also offers a continuous conducting framework for electron transport and accessible nanoporous channels for fast diffusion and transport of Li/Na-ions. As a consequence, this peapod-like structure exhibits a stable discharge capacity of 1434 mAh g.sub.-1 (at 100 mA g.sub.-1) and 806 mAh g.sub.-1 (at 200 mA g.sub.-1) over 100 cycles as anode materials for LIBs and SIBs, respectively. More importantly, a stable capacity of 958 mAh g.sub.-1 after 1000 cycles and 396 mAh g.sub.-1 after 1500 cycles can be achieved for LIBs and SIBs, respectively, at a large current density of 2000 mA g.sub.-1. This study provides a promising strategy for developing long-cycle-life LIBs and SIBs. CAPTION(S): Supplementary
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