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One-Step Pyro-Synthesis of a Nanostructured Mn3O4/C Electrode with Long Cycle Stability for Rechargeable Lithium-Ion Batteries
被引:40
作者:
Alfaruqi, Muhammad Hilmy
[1
]
Gim, Jihyeon
[1
]
Kim, Sungjin
[1
]
Song, Jinju
[1
]
Pham Tung Duong
[1
]
Jo, Jeonggeun
[1
]
Baboo, Joseph Paul
[1
]
Xiu, Zhiliang
[1
]
Mathew, Vinod
[1
]
Kim, Jaekook
[1
]
机构:
[1] Chonnam Natl Univ, Dept Mat Sci & Engn, 300 Yongbong Dong, Kwangju 500757, South Korea
基金:
新加坡国家研究基金会;
关键词:
anode materials;
electrochemistry;
Li-ion batteries;
nanostructures;
pyro-synthesis;
CAPACITY ANODE MATERIAL;
ELECTROCHEMICAL PERFORMANCE;
NEGATIVE-ELECTRODE;
FACILE SYNTHESIS;
RATE CAPABILITY;
STORAGE;
OXIDATION;
STRATEGY;
CATHODE;
HYBRID;
D O I:
10.1002/chem.201504609
中图分类号:
O6 [化学];
学科分类号:
070301 [无机化学];
摘要:
A nanostructured Mn3O4/C electrode was prepared by a one-step polyol-assisted pyro-synthesis without any post-heat treatments. The as-prepared Mn3O4/C revealed nanostructured morphology comprised of secondary aggregates formed from carbon-coated primary particles of average diameters ranging between 20 and 40nm, as evidenced from the electron microscopy studies. The N-2 adsorption studies reveal a hierarchical porous feature in the nanostructured electrode. The nanostructured morphology appears to be related to the present rapid combustion strategy. The nanostructured porous Mn3O4/C electrode demonstrated impressive electrode properties with reversible capacities of 666mAhg(-1) at a current density of 33mAg(-1), good capacity retentions (1141mAhg(-1) with 100% Coulombic efficiencies at the 100(th) cycle), and rate capabilities (307 and 202mAhg(-1) at 528 and 1056mAg(-1), respectively) when tested as an anode for lithium-ion battery applications.
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页码:2039 / 2045
页数:7
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