The preparation and phase transformation of nanocrystalline cobalt sulfides via a toluene thermal process

被引：53

作者：

Qian, XF ^{[1
]}

Zhang, XM ^{[1
]}

Wang, C ^{[1
]}

Xie, Y ^{[1
]}

Qian, YT ^{[1
]}

机构：

[1] Univ Sci & Technol China, Dept Chem, Hefei 230026, Anhui, Peoples R China

来源：

INORGANIC CHEMISTRY | 1999年 / 38卷 / 11期

关键词：

D O I：

10.1021/ic980177i

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Nanocrystalline cobalt sulfides were prepared by the reactions between cobalt chlorides and sodium polysulfide via a toluene thermal process in the temperature range 120-170 degrees C. Two single phases of Co9S8 and CoS2 were obtained. TEM microphotos showed that the Co9S8 and CoS2 particles were both spherical in shape with sizes of about 20 nm. Chemical analysis gave the formulas Co9S7.93 and CoS1.97, respectively. The transformations among cobalt sulfides (Co9S8, Co3S4, and CoS2) with changing reaction conditions and precursors were studied.

引用

页码：2621 / 2623

页数：3

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