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首页> 外文期刊>International Journal of Electrochemical Science >Fabrication of Pyrite FeS2 Films from Electrochemically Deposited FeOOH by Sulfur Annealing
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Fabrication of Pyrite FeS2 Films from Electrochemically Deposited FeOOH by Sulfur Annealing

机译：硫退火电化学沉积FeOOH制备黄铁矿FeS 2 薄膜

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摘要

Pyrite (FeS2) thin films were fabricated via the sulfurization of electrochemically deposited γ-FeOOH.FeOOH thin films were deposited from an aqueous solution containing 50 mM FeSO4 and 100 mMNa2SO4. The FeOOH precursor films and sulfur powder were placed in an alumina case with a lid, andannealed in N2 at 400°C, 450°C, and 500°C for 30 min. For comparison, electrochemically depositedFe–S–O films were also sulfurized under the same conditions. According to the Raman results, nearlyphase-pure pyrite was obtained from the FeOOH precursor films, whereas a significant amount ofmarcasite phase was found in the films fabricated from the Fe–S–O precursor. Thus, phase-purity wasgreatly improved by adopting FeOOH as the precursor for pyrite.
机译：通过电化学沉积的γ-FeOOH的硫化来制备黄铁矿（FeS2）薄膜.FeOOH薄膜是从含有50 mM FeSO4和100 mMNa2SO4的水溶液中沉积的。将FeOOH前体膜和硫粉置于带盖的氧化铝箱中，并在400℃，450℃和500℃的N 2中退火30分钟。为了进行比较，电化学沉积的Fe–S–O膜在相同条件下也被硫化。根据拉曼结果，从FeOOH前体薄膜中获得了近相纯黄铁矿，而在由Fe–S–O前体制成的薄膜中发现了大量的镁铁矿相。因此，通过采用FeOOH作为黄铁矿的前体，可以大大提高相纯度。

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