Formation of pyrite (FeS 2) films through electrodeposition from aqueous solutions which contain different source materials has been investigated. Na 2S 2O 3·5H 2O is used as sulfur source material, FeSO 4·7...Formation of pyrite (FeS 2) films through electrodeposition from aqueous solutions which contain different source materials has been investigated. Na 2S 2O 3·5H 2O is used as sulfur source material, FeSO 4·7H 2O, FeCl 2·4H 2O and FeCl 3·6H 2O are used as iron source materials respectively. The samples are annealed in N 2 atmosphere at 400 ℃ and 500 ℃ respectively. From XRD (X-ray diffraction) patterns of the films, it is found that there are peaks of FeS 2, FeS and Fe 7S 8 in all films, but there are sharp and more peaks characterizing FeS 2 in the film from Na 2S 2O 3 +FeSO 4 than other films, and 400 ℃ is the more suitable temperature than 500 ℃ for annealing the samples in N 2 atmosphere. In addition, one solution can be used repeatedly.展开更多
文摘Formation of pyrite (FeS 2) films through electrodeposition from aqueous solutions which contain different source materials has been investigated. Na 2S 2O 3·5H 2O is used as sulfur source material, FeSO 4·7H 2O, FeCl 2·4H 2O and FeCl 3·6H 2O are used as iron source materials respectively. The samples are annealed in N 2 atmosphere at 400 ℃ and 500 ℃ respectively. From XRD (X-ray diffraction) patterns of the films, it is found that there are peaks of FeS 2, FeS and Fe 7S 8 in all films, but there are sharp and more peaks characterizing FeS 2 in the film from Na 2S 2O 3 +FeSO 4 than other films, and 400 ℃ is the more suitable temperature than 500 ℃ for annealing the samples in N 2 atmosphere. In addition, one solution can be used repeatedly.
