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Title: Improved Sodium-Ion Storage Performance of Ultrasmall Iron Selenide Nanoparticles

Abstract

Sodium-ion batteries are potential low-cost alternatives to current lithium-ion technology, yet their performances still fall short of expectation due to the lack of suitable electrode materials with large capacity, long-term cycling stability, and high-rate performance. In this work, we demonstrated that ultrasmall (similar to 5 nm) iron selenide (FeSe 2) nanoparticles exhibited a remarkable activity for sodium-ion storage. Here, they were prepared from a high-temperature solution method with a narrow; size distribution and high yield and could be readily redispersed in nonpolar organic solvents. In ether-based electrolyte, FeSe 2 nanoparticles exhibited a large specific capacity of similar to 500 mAh/g (close to the theoretical limit), high rate capability with, similar to 250 mAh/g retained at 10 A/g, and excellent cycling stability at both low and high current rates by virtue of their advantageous nanositing effect. Full sodium-ion batteries were also constructed from coupling FeSe 2 with NASICON-type Na 3V 2(PO 4) 3 cathode and demonstrated impressive capacity and cycle ability.

Authors:
 [1];  [1];  [1];  [2];  [1];  [1];  [1];  [2]; ORCiD logo [1]; ORCiD logo [2]
  1. Soochow Univ., Suzhou (China)
  2. Argonne National Lab. (ANL), Lemont, IL (United States)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V)
OSTI Identifier:
1529968
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Nano Letters
Additional Journal Information:
Journal Volume: 17; Journal Issue: 7; Journal ID: ISSN 1530-6984
Publisher:
American Chemical Society
Country of Publication:
United States
Language:
English
Subject:
full battery; iron selenide; nanosizing effect; sodium-ion battery; ultrasmall nanoparticles

Citation Formats

Zhao, Feipeng, Shen, Sida, Cheng, Liang, Ma, Lu, Zhou, Junhua, Ye, Hualin, Han, Na, Wu, Tianpin, Li, Yanguang, and Lu, Jun. Improved Sodium-Ion Storage Performance of Ultrasmall Iron Selenide Nanoparticles. United States: N. p., 2017. Web. doi:10.1021/acs.nanolett.7b00915.
Zhao, Feipeng, Shen, Sida, Cheng, Liang, Ma, Lu, Zhou, Junhua, Ye, Hualin, Han, Na, Wu, Tianpin, Li, Yanguang, & Lu, Jun. Improved Sodium-Ion Storage Performance of Ultrasmall Iron Selenide Nanoparticles. United States. doi:10.1021/acs.nanolett.7b00915.
Zhao, Feipeng, Shen, Sida, Cheng, Liang, Ma, Lu, Zhou, Junhua, Ye, Hualin, Han, Na, Wu, Tianpin, Li, Yanguang, and Lu, Jun. Mon . "Improved Sodium-Ion Storage Performance of Ultrasmall Iron Selenide Nanoparticles". United States. doi:10.1021/acs.nanolett.7b00915. https://www.osti.gov/servlets/purl/1529968.
@article{osti_1529968,
title = {Improved Sodium-Ion Storage Performance of Ultrasmall Iron Selenide Nanoparticles},
author = {Zhao, Feipeng and Shen, Sida and Cheng, Liang and Ma, Lu and Zhou, Junhua and Ye, Hualin and Han, Na and Wu, Tianpin and Li, Yanguang and Lu, Jun},
abstractNote = {Sodium-ion batteries are potential low-cost alternatives to current lithium-ion technology, yet their performances still fall short of expectation due to the lack of suitable electrode materials with large capacity, long-term cycling stability, and high-rate performance. In this work, we demonstrated that ultrasmall (similar to 5 nm) iron selenide (FeSe2) nanoparticles exhibited a remarkable activity for sodium-ion storage. Here, they were prepared from a high-temperature solution method with a narrow; size distribution and high yield and could be readily redispersed in nonpolar organic solvents. In ether-based electrolyte, FeSe2 nanoparticles exhibited a large specific capacity of similar to 500 mAh/g (close to the theoretical limit), high rate capability with, similar to 250 mAh/g retained at 10 A/g, and excellent cycling stability at both low and high current rates by virtue of their advantageous nanositing effect. Full sodium-ion batteries were also constructed from coupling FeSe2 with NASICON-type Na3V2(PO4)3 cathode and demonstrated impressive capacity and cycle ability.},
doi = {10.1021/acs.nanolett.7b00915},
journal = {Nano Letters},
number = 7,
volume = 17,
place = {United States},
year = {2017},
month = {6}
}

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Cited by: 15 works
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Figures / Tables:

Figure 1 Figure 1: Structural characterizations of FeSe2 NPs. (a) A photograph showing ~100 ml FeSe2 NP hexane solution from a single reaction batch. (b) XRD of FeSe2 NPs, (c) low-magnification TEM image and (d) corresponding size distribution histogram of FeSe2 NPs, and (e) high-magnification TEM image of FeSe2 NPs.

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Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.