Template-directed preparation of two-layer porous NiO film via hydrothermal synthesis for lithium ion batteries

被引：25

作者：

Chen, Z. ^{[1
]}

Xiao, A. ^{[1
]}

Chen, Y. ^{[1
]}

Zuo, C. ^{[1
]}

Zhou, S. ^{[1
]}

Li, L. ^{[1
]}

机构：

[1] Hunan Univ Arts & Sci, Coll Chem & Chem Engn, Changde 415000, Hunan, Peoples R China

来源：

MATERIALS RESEARCH BULLETIN | 2012年 / 47卷 / 08期

关键词：

Oxides; Thin films; Energy storage; Electrochemical properties; ANODE; PERFORMANCE; ELECTRODES; FABRICATION; REACTIVITY; ARRAYS; OXIDE; CUO;

D O I：

10.1016/j.materresbull.2012.04.018

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A two-layer porous NiO film is prepared by hydrothermal synthesis method through self-assembled monolayer polystyrene spheres template. The substructure of the NiO film is composed of ordered close-packed hollow-sphere array and the superstructure is made up of randomly NiO nanoflakes. The electrochemical properties are measured by galvanostatic charge/discharge tests and cyclic voltammetric analysis (CV). As anode material for lithium ion batteries, the two-layer porous NiO film exhibits high initial coulombic efficiency of 75%, high reversible capacity and rather good cycling performance. The discharge capacity of the two-layer porous NiO film is 501 mAh g(-1) at 0.5 C after 50 cycles. The two-layer porous architecture is responsible for the enhancement of electrochemical properties. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：1987 / 1990

页数：4

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