文献类型：期刊文献

英文题名：One-step synthesis of cubic FeS₂ and flower-like FeSe₂ particles by a solvothermal reduction process

作者：Yuan, Binxia[1];Luan, Weiling[1];Tu, Shan-tung[1]

机构：[1]E China Univ Sci & Technol, Sch Mech & Power Engn, State Key Lab Safety Sci Pressurized Syst, Shanghai 200237, Peoples R China

年份：2012

卷号：41

期号：3

起止页码：772

外文期刊名：DALTON TRANSACTIONS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000298753800012)】；

基金：The authors appreciate the financial support provided by National Nature Science Foundation of China (51172072), Fundamental Research Funds for Central Universities (WJ0913001), the Focus of Scientific and Technological Research Projects (109063), and the State Key Laboratory of Chemical Engineering at ECUST (SKL-ChE-08C09).

语种：英文

摘要：In this paper, for the first time a simple batch process was utilized for the facile synthesis of cubic FeS2 and flower-like FeSe2. By adjusting the amount of solvents and surfactants added, pure pyrite FeS2 with a defined crystalline structure was obtained. It was found that the reaction temperatures and iron sources had significant influence on the purities and morphologies of FeS2 and FeSe2 particles. Raman spectra of the FeS2 and FeSe2 samples presented characteristic peaks of S-S and Se-Se active modes at 337, 372 cm(-1), and 180, 217, 254 cm(-1), respectively. The absorption properties of the FeS2 and FeSe2 samples were also investigated and the results demonstrated that these samples had broad optical absorption in NIR. Moreover, the synthetic approach demonstrated here may be of great potential for the controlled synthesis of other metal chalcogenides.