Journal
DALTON TRANSACTIONS
Volume 41, Issue 3, Pages 772-776Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c1dt11176k
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Funding
- National Nature Science Foundation of China [51172072]
- Fundamental Research Funds for Central Universities [WJ0913001]
- Focus of Scientific and Technological Research Projects [109063]
- State Key Laboratory of Chemical Engineering at ECUST [SKL-ChE-08C09]
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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.
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