NiO超细粉末的均匀沉淀法制备与表征

journal6 ›› 2009, Vol. 30 ›› Issue (6): 81-85.

NiO超细粉末的均匀沉淀法制备与表征

（1.吉首大学化学化工学院，湖南吉首 416000;2.中南大学化学化工学院，湖南长沙 410083）

出版日期:2009-11-25 发布日期:2012-04-20

Preparation and Characterization of Superfine NiO Powders by Homogeneous Precipitation Method

(1.College of Chemistry and Chemical Engineering,Jishou University,Jishou 416000,Hunan China;2.School of Chemistry and Chemical Engineering,Central South University,Changsha 410083,China)

Online:2009-11-25 Published:2012-04-20
About author:XIONG Li-zhi(1974-),female,was born in Hunan Province,Ph.D.,lecturer of Jishou University.
Supported by:
Supported by National Natural Science Foundation of China (20376086)；Postdoctoral Science Foundation of China (2005037700)；Natural Science Foundation of Hunan Province (07JJ3014)；Scientific Research Fund of Hunan Provincial Education Department(07A058)；Postdoctoral Science Foundation of Central South University (2004107)

摘要/Abstract

摘要：以 Ni(NO₃)₂·6H₂O为主要原料，以尿素为沉淀剂，采用均匀沉淀法制备超细氧化镍，并通过热重-差重（TG/DTA）、X-射线衍射(XRD)、扫描电子显微镜（SEM）等分析手段对其进行了表征.采用此方法可以得到粒径在1~2 μm之间的超细氧化镍粉末.NiO的首次放电容量达到670.5 mAh/g，80次循环后每次循环的容量损失仅为0.031%，表明本法制备的NiO是一种优秀的锂离子电池负极材料.

关键词： 氧化镍, 均匀沉淀法, 超细粉体, 负极

Abstract: Superfine NiO powders were prepared by a homogeneous precipitation method with an aqueous solution of nickel nitrate hexahydrate and urea.The microstructure,surface morphology of NiO were characterized by thermogravimertric (TG) analysis and differential thermal analysis (DTA),X-ray diffraction (XRD),scanning electron microscope (SEM),infrared (IR) spectroscopy.Superfine NiO with particle size of 1~3 μm can be obtained by this method.NiO delivers a discharge capacity of more than 670.5 mAh/g,and the capacity loss per cycle after 80 times is only 0.031%,suggesting that superfine NiO derived from this method is an excellent anode material for lithium ion batteries.

Key words: Nickel oxide, homogeneous precipitation method, superfine powder, anode

熊利芝, 何则强, 孙新阳. NiO超细粉末的均匀沉淀法制备与表征[J]. journal6, 2009, 30(6): 81-85.

XIONG Li-Zhi, HE Ze-Qiang, SUN Xin-Yang. Preparation and Characterization of Superfine NiO Powders by Homogeneous Precipitation Method[J]. journal6, 2009, 30(6): 81-85.

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