Owing to their enhanced properties as compared to bulk materials, the prospective applications for nanomaterials have experienced unprecedented growth, gaining attention from all levels of industry, from medical to electronics, chemistry, catalysis and mechanics. However, one of the greatest challenges of the nanomaterial industry lies in developing a production system that assures low cost and high production capabilities while maintaining quality standards. Here, we show a new method for the synthesis of metal oxide nanoparticles based on an aqueous precipitation method. The system makes use of ultrasonic probes and continuous precipitation chambers which allow it to operate continuously. Catalyst support materials, such as MgAl₂O₄ and γ-Al₂O₃, were synthesized showing high BET surface areas of 338.61 and 366.10 m² g⁻¹, hollow spherical morphologies and crystallite sizes as small as 3.2 and 2.1 nm, respectively.

中文翻译：

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用于高表面积氧化物基纳米结构材料的新型超声辅助共沉淀†

由于与散装材料相比，纳米材料具有增强的性能，因此纳米材料的潜在应用经历了空前的增长，引起了从医学到电子，化学，催化和机械等各个行业的关注。然而，纳米材料工业的最大挑战之一在于开发一种生产系统，该系统在确保质量标准的同时确保低成本和高生产能力。在这里，我们展示了一种基于水沉淀法合成金属氧化物纳米粒子的新方法。该系统利用超声波探头和连续的沉淀室，使之能够连续运行。催化剂载体材料，如镁铝₂ ö ₄和在γ-Al ₂ ö ₃合成具有高的BET表面积的338.61和366.10m ² g ^-1，空心球形形态和微晶尺寸分别小至3.2nm和2.1nm 。