Porous 3D CeO₂ nanocubes were synthesized using hot injection technique. These nanocubes were able to form a stable monolayer over water and HAuCl₄ subphase in Langmuir–Blodgett (LB) trough due to the presence of surface capped oleic acid and oleylamine. CeO₂–Au nanocomposites were synthesized exploiting the ability of oleylamine to reduce AuCl₄⁻ ions to Au⁰, via LB method. CeO₂ nanocubes gave rise to excellent long-range assembly at air/water interface and gold nanoparticles were formed inside these porous nanocubes without disturbing this arrangement. The formation of a stable monolayer was evidenced from the surface pressure–area (Π–A) isotherm. The development of Au nanoparticles was confirmed with great effort from a comprehensive study using UV-Vis spectroscopy, XRD, XPS, FTIR, TEM, STEM, EDX, tomography and chemical mapping.

中文翻译：

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使用Langmuir-Blodgett技术 在多孔CeO ₂纳米立方体中沉积Au纳米颗粒†

使用热注射技术合成了多孔3D CeO ₂纳米立方体。由于存在表面封端的油酸和油胺，这些纳米立方能够在Langmuir-Blodgett（LB）槽中的水和HAuCl ₄亚相上形成稳定的单层。的CeO ₂ -Au纳米复合材料合成利用油胺，以减少AUCL的能力₄ ^-离子与Au ⁰，通过LB法。CeO ₂纳米立方体在空气/水界面产生了出色的长距离组装，并且在这些多孔纳米立方体内部形成了金纳米颗粒，而不会干扰这种排列。稳定的单分子层的形成可以从表面压力区域得到证明（Π -一）等温线。使用紫外线-可见光谱，XRD，XPS，FTIR，TEM，STEM，EDX，层析成像和化学作图进行的全面研究证实了金纳米颗粒的开发是一项巨大的努力。