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首页> 外文期刊>Advanced Functional Materials >UV-Light-Driven Oxygen Pumping in a High-Temperature Solid Oxide Photoelectrochemical Cell
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UV-Light-Driven Oxygen Pumping in a High-Temperature Solid Oxide Photoelectrochemical Cell

机译：高温固态氧化物光电化学电池中的紫外线驱动氧气泵送

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A solid-state photoelectrochemical cell is operated between 400 and 500 degrees C under 365 nm UV light. The cell consists of a photovoltaic part, based on a La0.8Sr0.2CrO3/SrTiO3 junction, and an electrochemical part including a zirconia solid electrolyte with a shared (La,Sr)FeO3 electrode. The photovoltaic cell part leads to open circuit voltages up to 920 mV at 400 degrees C. Upon UV light, this driving force is used in the electrochemical part of the cell to pump oxygen from low to high partial pressures, i.e., to convert radiation energy to chemical energy. This demonstrates the feasibility of high-temperature photoelectrochemical cells for solar energy storage. The detailed characterization of the different resistance contributions in the system by DC and AC methods reveals the parts of the cell to be optimized for finally achieving high-temperature photoelectrochemical water splitting.
机译：固态光电化学电池在365 nm紫外线下在400至500摄氏度之间运行。电池由基于La0.8Sr0.2CrO3 / SrTiO3结的光伏部件和包括带有共享（La，Sr）FeO3电极的氧化锆固体电解质的电化学部件组成。光伏电池部件在400摄氏度时导致开路电压高达920 mV。在紫外线照射下，该驱动力用于电池的电化学部件中，以将氧气从低分压泵送到高分压，即转换辐射能化学能。这证明了高温光电化学电池用于太阳能存储的可行性。通过DC和AC方法对系统中不同电阻贡献的详细表征，揭示了需要优化以最终实现高温光电化学水分解的电池部分。

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