Synthesis of Urchin-like Nickel Sulfide Hollow Spheres and Their Electrochemical Performance

Chem. J. Chinese Universities ›› 2011, Vol. 32 ›› Issue (3): 584.

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Synthesis of Urchin-like Nickel Sulfide Hollow Spheres and Their Electrochemical Performance

LANG Lei-Ming^1,2, XU Zheng^1*

1. State Key Laboratory of Coordination Chemistry and Nanjing National Laboratory of Microstructure, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China;
2. Biochemical and Environmental Engineering College, Nanjing Xiaozhuang University, Nanjing 211171, China

Received:2010-10-22 Revised:2011-01-04 Online:2011-03-10 Published:2011-02-23
Contact: XU Zheng E-mail:zhengxu@nju.edu.cn
Supported by:
国家“九七三”计划项目(批准号: 2007CB936302)资助.

Abstract

Abstract: Urchin-like nickel sulfide hollow spheres composed of nanorods were synthesized via a solvthermal method using thioacetamide as sulfur source and ethylene glycol as solvent. The result of XRD indicated that there were two kinds of phase structure including α and β in the NiS products and the major product was β-NiS. The formation process of urchin-like nickel sulfide hollow spheres was investigated by monitoring the morphology variation of the product with reaction time. The results showed that urchin-like solid microspheres were formed firstly, then hollow structure were obtained via further “Ostwald ripening” process. Charge-Discharge and cyclic performance of the products were determined as an cathode of lithium-ion batteries. The first discharge-charge capacity was 900 mAhg-1, and 200mAhg-1 was still remained after 50 cycles.

Key words: urchin-like, nickel sulfide, hollow spheres, electrochemical

CLC Number:

TB383

TrendMD:

LANG Lei-Ming, XU Zheng*. Synthesis of Urchin-like Nickel Sulfide Hollow Spheres and Their Electrochemical Performance[J]. Chem. J. Chinese Universities, 2011, 32(3): 584.

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Synthesis of Urchin-like Nickel Sulfide Hollow Spheres and Their Electrochemical Performance

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