您目前所在的位置:首页 - 期刊简介 - 详细页面

铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 13    No. 6    December 2003

[PDF Download]    [Flash Online]

    

Preparation of fibrous nickel oxide particles
ZHANG Chuan-fu(张传福)1, ZHAN Jing(湛 菁)1, WU Jian-hui(邬建辉)1 , GUO Xue-yi(郭学益)1, M. Okido2

1. School of Metallurgical Science and Engineering, 
Central South University,Changsha 410083, China;
2.Center for Intergrated Research in Science and Engineering, Nagoya University, 
Furo-Cho, Chikusa-Ku, Nagoya 464-8603, Japan

Abstract:The fibrous nickel oxide particles were prepared by chemical precipitation and pyrolysis method. The NiO precursors were firstly precipitated from nickel ions solution with addition of oxalate salt, and then the final NiO particles were obtained by pyrolysis of the precursor. The effects of the pH value, precipitation temperature, reactant concentration, addition of surfactant on the morphology of the precursor particles were investigated. The crystallinity, purity, morphology of the fibrous NiO were analyzed by XRD and SEM. The fibrous NiO particles with 100-120 in axis/diameter ratio may be produced under the optimal process conditions that are proposed: the Ni2+ concentration is 0.5-0.8mol/L, pH value is 8.3-8.9, precipitation temperature is 60-75℃, pyrolysis temperature is 500-600℃. 

 

Key words: chemical precipitation and pyrolysis; precursor; fibrous NiO particles; preparation

ISSN 1672-7029
CN 43-1423/U

主管:中华人民共和国教育部 主办:中南大学 中国铁道学会 承办:中南大学
湘ICP备09001153号 版权所有:《铁道科学与工程学报》编辑部
------------------------------------------------------------------------------------------
地 址:湖南省长沙市韶山南路22号 邮编:410075
电 话:0731-82655133,82656174   传真:0731-82655133   电子邮箱:jrse@mail.csu.edu.cn