Enhanced Electrochemical Performance of FeWO4 by Coating Nitrogen-Doped Carbon

被引：44

作者：

Gong, Chen ^{[1
]}

Bai, Yu-Jun ^{[1
,2
]}

Feng, Jun ^{[1
]}

Tang, Rui ^{[1
]}

Qi, Yong-Xin ^{[1
]}

Lun, Ning ^{[1
]}

Fan, Run-Hua ^{[1
]}

机构：

[1] Shandong Univ, Minist Educ, Key Lab Liquid Solid Struct Evolut & Proc Mat, Jinan 250061, Peoples R China

[2] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China

来源：

ACS APPLIED MATERIALS & INTERFACES | 2013年 / 5卷 / 10期

基金：

中国国家自然科学基金;

关键词：

cyclic performance; rate capability; hydrothermal treatment; impedance; N-doping tungstate; LITHIUM-ION; ANODE MATERIAL; TUNGSTEN TRIOXIDE; INTERCALATION; FABRICATION; ELECTRODES; CAWO4;

D O I：

10.1021/am400392t

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

FeWO4 (FWO) nanocrystals were prepared at 180 degrees C by a simple hydrothermal method, and carbon-coated FWO (FWO/C) was obtained at 550 degrees C using pyrrole as a carbon source. The FWO/C obtained from the product hydrothermally treated for 5 h exhibits reversible capacities of 771.6, 743.8, 670.6, 532.6, 342.2, and 184.0 mAh g(-1) at the current densities of 100, 200, 400, 800, 1600, and 3200 mA g(-1), respectively, whereas that from the product treated for 0.5 h achieves a reversible capacity of 205.9 rnAh g(-1) after cycling 200 times at a current density of 800 mA g(-1). The excellent electrochemical performance of the FWO/C results from the combination of the nanocrystals with good electron transport performance and the nitrogen-doped carbon coating.

引用

页码：4209 / 4215

页数：7

共 36 条

[1] 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
[2] ULTRAVIOLET EMISSION FROM ABO4-TYPE NIOBATES, TANTALATES AND TUNGSTATES
BLASSE, G
BRIXNER, LH
[J]. CHEMICAL PHYSICS LETTERS, 1990, 173 (5-6) : 409 - 411
[3] 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
[4] Nonlinear behavior in the thermopower of doped carbon nanotubes due to strong, localized states
Choi, YM
Lee, DS
Czerw, R
Chiu, PW
Grobert, N
Terrones, M
Reyes-Reyes, M
Terrones, H
Charlier, JC
Ajayan, PM
Roth, S
Carroll, DL
Park, YW
[J]. NANO LETTERS, 2003, 3 (06) : 839 - 842
[5] Wet chemical process of rod-like tungsten nanopowders with iron (II) as reductive agent
Gao, Ye
Zhao, Jingzhe
Zhu, Yanchao
Ma, Shanshan
Su, Xiaodan
Wang, Zichen
[J]. MATERIALS LETTERS, 2006, 60 (29-30) : 3903 - 3905
[6] Preparation of carbon-coated MgFe2O4 with excellent cycling and rate performance
Gong, Chen
Bai, Yu-Jun
Qi, Yong-Xin
Lun, Ning
Feng, Jun
[J]. ELECTROCHIMICA ACTA, 2013, 90 : 119 - 127
[7] Polyoxometalate catalysis of dye bleaching by hydrogen peroxide
Gould, DM
Griffith, WP
Spiro, M
[J]. JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2001, 175 (1-2) : 289 - 291
[8] Large-scale synthesis of single-crystal hexagonal tungsten trioxide nanowires and electrochemical lithium intercalation into the nanocrystals
Gu, Zhanjun
Li, Huiqiao
Zhai, Tianyou
Yang, Wensheng
Xia, Yongyao
Ma, Ying
Yao, Jiannian
[J]. JOURNAL OF SOLID STATE CHEMISTRY, 2007, 180 (01) : 98 - 105
[9] Controllable synthesis of hexagonal WO3 nanostructures and their application in lithium batteries
Huang, Kai
Pan, Qingtao
Yang, Feng
Ni, Shibing
Wei, Xiucheng
He, Deyan
[J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2008, 41 (15)
[10] Recent developments in nanostructured anode materials for rechargeable lithium-ion batteries
Ji, Liwen
Lin, Zhan
Alcoutlabi, Mataz
Zhang, Xiangwu
[J]. ENERGY & ENVIRONMENTAL SCIENCE, 2011, 4 (08) : 2682 - 2699

← 1 2 3 4 →