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Flame Synthesized Nanostructured WO3 Thin Films for Photoelectrochemical Water Splitting

机译:用于光电化学水分裂的火焰合成的纳米结构WO3薄膜

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Tungsten oxide has been considered as a promising photoanode material for photoelectrochemcial watersplitting techonologies. In our study, we prepared nanostrutured tungsten oxide thin films with different morphologies, such as granular, co-tube and flower-like structures, by aerosol flame deposition process. Thin film morphology were controlled by adjusting various process parameters, such as tungsten wire feed rate and various gas flow rates and so on. With higher tungsten wire feed rate, nucleation process of tungsten oxide vapor has higher tendency to take place in the flame before depositing on the subtrate, which led to granular morphology of thin film formed. We first presented an approach to prepare doublelayer nanostructured WO3 thin film bloomed flower structure by a rapid single flame deposition process. This may provide a way to increase thin film total surface area, and facilitate charge transport of thin film photoelectrode in photoelectrochemical water splitting.
机译:钨氧化物被认为是用于光电化水域水域技术的有前途的光电码材料。在我们的研究中,我们通过气溶胶火焰沉积工艺制备具有不同形态的纳米钨氧化物薄膜,例如颗粒状,共管和花状结构。通过调整各种工艺参数,例如钨送丝进给速率和各种气体流速等来控制薄膜形态。具有较高的钨丝进料速率,氧化钨蒸气的成核过程具有更高的火焰倾向,然后在沉积在下液体上沉积,这导致形成薄膜的颗粒形态。我们首先通过快速单火焰沉积过程制备双层纳米结构WO3薄膜膨胀的花卉结构的方法。这可以提供一种增加薄膜总表面积的方法,并促进光电化学水分裂中的薄膜光电极的电荷传输。

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