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首页> 外文期刊>CERAMICS INTERNATIONAL >Perovskite oxide-based nanohybrid for low-temperature thin-film solid oxide fuel cells fabricated via a facile and scalable electrochemical process
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Perovskite oxide-based nanohybrid for low-temperature thin-film solid oxide fuel cells fabricated via a facile and scalable electrochemical process

机译：基于钙钛矿的氧化物纳米嗜含量，用于低温薄膜固体氧化物燃料电池通过容易和可伸缩的电化学方法制造

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摘要

High-performance electrodes for energy conversion systems can be achieved through the selection of materials with appropriate functionality as well as fabricating the desired nanoarchitectures. Nanohybrids of metal and perovskite metal oxide have a great potential as electrodes owing to the combined advantages of the active constituents; however, the controlled hybridization in nanoscale is hindered by the conflicting nature of the metal and perovskite oxide, and it should involve cost-, energy- and time-intensive fabrication techniques. Here, we report an electrochemical process as a facile, cost-effective, and scalable route to fabricating metal perovskite metal oxide nanohybrids with tailored architectures. We successfully fabricate a Pt@LaCoO3 nanohybrid that consists of a conformal LaCoO3 nanonetwork on a nanoporous Pt thin-film framework. We examine this nanohybrid as an electrode for thin-film-based, low-temperature solid oxide fuel cells and demonstrate that the synergistic nanostructuring of Pt@LaCoO3 leads to exceptionally high oxygen reduction activity at reduced operating temperature and high stability.
机译：能量转换系统的高性能电极可以通过选择具有适当的功能的材料以及制造所需的纳米建筑物的材料来实现。由于活性成分的组合优势，金属和钙钛矿金属氧化物的纳米胺具有很大的电位;然而，纳米级的受控杂交被金属和钙钛矿氧化物的矛盾性质受到阻碍，并且它应该涉及成本，能量和时间密集的制造技术。在这里，我们将电化学过程作为容易，经济效率和可伸缩的途径报告，以用定制的架构制造金属钙钛矿金属氧化物纳米胺。我们成功地制造了PT @ LACOO3纳米混合物，其包括在纳米孔PT薄膜框架上的共形LACOU3纳米纳米。我们将该纳米冬次用于基于薄膜的低温固体氧化物燃料电池的电极，并证明Pt @ LaCoo3的协同纳米结构在降低的操作温度和高稳定性下导致高氧还原活性。

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