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首页> 外文期刊>RSC Advances >Hierarchical NiCo2O4/NiFe/Pt heterostructures supported on nickel foam as bifunctional electrocatalysts for efficient oxygen/hydrogen production
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Hierarchical NiCo2O4/NiFe/Pt heterostructures supported on nickel foam as bifunctional electrocatalysts for efficient oxygen/hydrogen production

机译：镍泡沫上担载的分层NiCo2O4 / NiFe / Pt异质结构作为双功能电催化剂，可高效生产氧气/氢气

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摘要

As the demand for clean and renewable energy increases, high-efficiency multifunctional electrocatalysts for water cracking have become a research hotspot. In this study, a NiCo _(2) O _(4) /NiFe/Pt composite with a hierarchical structure was successfully constructed by combining a hydrothermal growth and electrodeposition method with nickel foam as the scaffold material, and its overall water cracking reaction was studied. The laminar-structured NiCo _(2) O _(4) /NiFe composite exhibits an improved number of electrochemically active sites and shorter electron transport pathways, while the Pt particles deposited on the NiCo _(2) O _(4) /NiFe composite are conducive to improve the hydrogen evolution reaction without affecting the efficiency of the oxygen evolution reaction of the intrinsic material. The NiCo _(2) O _(4) /NiFe/Pt composite shows an excellent overall water cracking performance under alkaline conditions with a current density of 10 mA cm ~(?2) at an applied potential of 1.45 V, indicating a promising research prospect.
机译：随着对清洁和可再生能源的需求增加，用于水裂解的高效多功能电催化剂已成为研究热点。本研究通过以镍泡沫为支架材料的水热生长和电沉积方法成功地构建了具有分层结构的NiCo _（2）O _（4）/ NiFe / Pt复合材料，其整体水裂解反应为研究。层状结构的NiCo _（2）O _（4）/ NiFe复合材料表现出改善的电化学活性位点和较短的电子传输路径，而Pt颗粒沉积在NiCo _（2）O _（4）/ NiFe上这种复合材料有利于改善析氢反应而不影响本征材料的析氧反应效率。 NiCo _（2）O _（4）/ NiFe / Pt复合材料在碱性条件下表现出优异的总体水裂性能，在1.45 V的施加电势下的电流密度为10 mA cm〜（？2）。研究前景。

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