OXIDATION OF Fe-W ALLOY ELECTRODEPOSITS FOR APPLICATION TO ANODES AS LITHIUM ION BATTERIES

被引：3
|
作者：
Su, Changwei [1 ]
Ye, Mengchao
Zhon, Linxing
Hou, Jianping
Li, Junmin
Guo, Junming
机构：
[1] Yunnan Minzu Univ, Key Lab Chem Ethn Med Resources, State Ethn Affairs Commiss, D-306, Kunming 650500, Yunnan, Peoples R China
来源：
SURFACE REVIEW AND LETTERS | 2016年 / 23卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Fe-W alloy; electrodeposition; oxidation; lithium ion batteries; HIGH-PERFORMANCE ANODES; ONE-POT SYNTHESIS; SOLID-SOLUTIONS; STORAGE; GRAPHENE; COMPOSITES; CAPACITY; MATRIX;
D O I：
10.1142/S0218625X15501000
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A citrate-ammonia bath was selected to electrodeposit Fe-W alloys, which exhibit a crystalline structure even if the content of W in the Fe-W alloy is up to 37.8 wt%. Those alloys could be oxidized partly at 700 degrees C. Resultant oxides were composed of Fe2O3, Fe3O4 and amorphous products. The composite oxides presented better electrochemical properties than those of the Fe2O3 and Fe3O4 composite formed by oxidation of Fe deposits. For instance, such an electrode demonstrates the reversible capacity of up to 2438.3 mAh g(-1) (in terms of incremental oxygen) after 100 charge-discharge cycles, while the electrodes of Fe2O3 and Fe3O4 composites formed by oxidation of Fe deposits were of only 667.5 mAh g(-1).
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页数：7
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