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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Cold sprayed WO3 and TiO2 electrodes for photoelectrochemical water and methanol oxidation in renewable energy applications
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Cold sprayed WO3 and TiO2 electrodes for photoelectrochemical water and methanol oxidation in renewable energy applications

机译：用于光电化学水和可再生能源应用中的光电化学水和甲醇氧化的冷喷涂WO3和TiO2电极

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Films prepared by cold spray have potential applications as photoanodes in electrochemical water splitting and waste water purification. In the present study cold sprayed photoelectrodes produced with WO3 (active under visible light illumination) and TiO2 (active under UV illumination) on titanium metal substrates were investigated as photoanodes for the oxidation of water and methanol, respectively. Methanol was chosen as organic model pollutant in acidic electrolytes. Main advantages of the cold sprayed photoelectrodes are the improved metal-semiconductor junctions and the superior mechanical stability. Additionally, the cold spray method can be utilized as a large-scale electrode fabrication technique for photoelectrochemical applications. Incident photon to current efficiencies reveal that cold sprayed TiO2/WO3 photoanodes exhibit the best photoelectrochemical properties with regard to the water and methanol oxidation reactions in comparison with the benchmark photocatalyst Aeroxide TiO2 P25 due to more efficient harvesting of the total solar light irradiation related to their smaller band gap energies.
机译：冷喷雾准备的薄膜具有电化学水分裂和废水净化的潜在应用。在本研究的研究中，用WO3（可见光照明下的活性照射）和TiO 2（在紫外线照明下，在钛金属衬里下的TiO 2（活性下的紫外线照明）作为光碳，分别为氧化水和甲醇。选择甲醇作为酸性电解质的有机模型污染物。冷喷涂光电区的主要优点是改善的金属 - 半导体结和优异的机械稳定性。另外，冷喷射方法可用作光电化学应用的大尺寸电极制造技术。事件光子对当前效率揭示冷喷涂的TiO2 / WO3光电池具有关于水和甲醇氧化反应的最佳光电化学性质，与基准光催化剂有效的氧化品TiO2 P25，由于更有效地收获与其相关的总太阳光辐射更有效较小的带隙能量。

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