The evaporation-induced self-assembly (EISA) process is commonly employed to synthesise mesoporous materials, such as mesoporous alumina. Typically, recovering mesoporous alumina in powder form takes several days due to the need for controlled solvent evaporation conditions. The mesostructure obtained from the EISA process is highly sensitive to these conditions, which can sometimes hinder reproducibility. This paper presents an improved EISA method using a centrifugal evaporator, which enables the rapid recovery of mesoporous alumina powder (approximately 2 h) from multiple precursor solutions under controlled evaporation conditions. The advantages of using a centrifugal evaporator over traditional vacuum evaporation methods include: (1) the reduction of bumping and foaming due to centrifugal force; (2) resistance to evaporated gaseous HCl; and (3) the ability to evaporate multiple samples simultaneously. This enhanced EISA process is expected to accelerate the research progress of powdery mesoporous materials.

中文翻译：

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通过蒸发诱导自组装 （EISA） 进行介孔氧化铝粉末合成的高通量离心蒸发


蒸发诱导自组装 （EISA） 工艺通常用于合成介孔材料，例如介孔氧化铝。通常，由于需要受控的溶剂蒸发条件，以粉末形式回收介孔氧化铝需要几天时间。从 EISA 工艺获得的介观结构对这些条件高度敏感，这有时会阻碍可重复性。本文提出了一种使用离心蒸发器的改进型 EISA 方法，该方法能够在受控蒸发条件下从多种前驱体溶液中快速回收介孔氧化铝粉末（约 2 小时）。与传统真空蒸发方法相比，使用离心蒸发器的优点包括：（1） 减少由于离心力引起的碰撞和起泡;（2） 对蒸发的气态 HCl 的抵抗力;（3） 同时蒸发多个样品的能力。这种增强的 EISA 工艺有望加速粉末状介孔材料的研究进展。