Conversion of α-Fe2O3 from spindle nanorods to nanotubes, and their lithium-storage performance

被引：20

作者：

Liu, Shan ^{[1
]}

Sun, Yan-Hui ^{[1
]}

Dong, Pei-Pei ^{[1
]}

Nan, Jun-Min ^{[1
]}

机构：

[1] S China Normal Univ, Sch Chem & Environm, Guangzhou Key Lab Mat Energy Convers & Storage, Guangzhou 510006, Guangdong, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS | 2015年 / 202卷

关键词：

alpha-Fe2O3; Nanotube; Hydrothermal synthesis; Anode material; Electrochemical performance; ANODE MATERIALS; ION BATTERY; ELECTROCHEMICAL PERFORMANCE; FACILE SYNTHESIS; NANOFIBERS; PARTICLES;

D O I：

10.1016/j.mseb.2015.08.011

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Conversion of alpha-Fe2O3 from nanorods to nanotubes has been demonstrated by means of controlling the additive, hydrothermal time, and temperature. The results indicate that Na2SO4 in precursor solution facilitates the formation of alpha-Fe2O3 phase, and increasing the hydrothermal time and temperature is favorable for the conversion of alpha-Fe2O3 from spindle nanorods to nanotubes by dissolving the sharp ends and interior of the nanorods. The alpha-Fe2O3 nanotube anode delivers a capacity of 1100 mA h g(-1) cycled at 500 mAg(-1) after 80 cycles, which is much higher than that of the nanorod anode (452 mA h g(-1)). It is worth noting that even at 2000 mA g(-1), the nanotube anode can retain a capacity of 687 mA h g(-1) after 80 cycles. The results of electrochemical impedance spectroscopy also demonstrate a much lower charge transfer impedance and faster lithium-ion diffusion of alpha-Fe2O3 nanotubes than the nanorods, indicating the importance of the nanotubes for an enhanced electrochemical performance of alpha-Fe2O3 anode. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：15 / 24

页数：10

共 39 条

[1] Process Map for the Hydrothermal Synthesis of α-Fe2O3 Nanorods
Almeida, Trevor P.
Fay, Mike
Zhu, Yanqiu
Brown, Paul D.
[J]. JOURNAL OF PHYSICAL CHEMISTRY C, 2009, 113 (43) : 18689 - 18698
[2] Nanostructured materials for advanced energy conversion and storage devices
Aricò, AS
Bruce, P
Scrosati, B
Tarascon, JM
Van Schalkwijk, W
[J]. NATURE MATERIALS, 2005, 4 (05) : 366 - 377
[3] Barsoukov E, 2005, IMPEDANCE SPECTROSCOPY: THEORY, EXPERIMENT, AND APPLICATIONS, 2ND EDITION, pXII
[4] Ferrocene as precursor for carbon-coated α-Fe2O3 nano-particles for rechargeable lithium batteries
Brandt, A.
Balducci, A.
[J]. JOURNAL OF POWER SOURCES, 2013, 230 : 44 - 49
[5] 1D hollow α-Fe2O3 electrospun nanofibers as high performance anode material for lithium ion batteries
Chaudhari, Sudeshna
Srinivasan, Madhavi
[J]. JOURNAL OF MATERIALS CHEMISTRY, 2012, 22 (43) : 23049 - 23056
[6] A comparative study of lithium-storage performances of hematite: Nanotubes vs. nanorods
Chen, Liang
Xu, Huayun
Li, Li'e
Wu, Fangfang
Yang, Jian
Qian, Yitai
[J]. JOURNAL OF POWER SOURCES, 2014, 245 : 429 - 435
[7] Electrospun α-Fe2O3 nanorods as a stable, high capacity anode material for Li-ion batteries
Cherian, Christie T.
Sundaramurthy, J.
Kalaivani, M.
Ragupathy, P.
Kumar, P. Suresh
Thavasi, V.
Reddy, M. V.
Sow, Chorng Haur
Mhaisalkar, S. G.
Ramakrishna, S.
Chowdari, B. V. R.
[J]. JOURNAL OF MATERIALS CHEMISTRY, 2012, 22 (24) : 12198 - 12204
[8] α-Fe2O3 lithium battery anodes by nanocasting strategy from ordered 2D and 3D templates
Di Lupo, F.
Gerbaldi, C.
Casino, S.
Francia, C.
Meligrana, G.
Tuel, A.
Penazzi, N.
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2014, 615 : S482 - S486
[9] Shape-Controlled Synthesis of Single-Crystalline Fe2O3 Hollow Nanocrystals and Their Tunable Optical Properties
Fan, H. M.
You, G. J.
Li, Y.
Zheng, Z.
Tan, H. R.
Shen, Z. X.
Tang, S. H.
Feng, Y. P.
[J]. JOURNAL OF PHYSICAL CHEMISTRY C, 2009, 113 (22) : 9928 - 9935
[10] Axial compressive α-Fe2O3 microdisks prepared from CSS template for potential anode materials of lithium ion batteries
Gao, Guo
Zhang, Qiang
Wang, Kan
Song, Hua
Qiu, Peiyu
Cui, Daxiang
[J]. NANO ENERGY, 2013, 2 (05) : 1010 - 1018

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