Scalable continuous production of high quality HKUST-1 via conventional and microwave heating
Scalable continuous production of high quality HKUST-1 via conventional and microwave heating
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DOI：
10.1016/j.cej.2017.05.169
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发表时间：
2017-10-15
影响因子：
15.1
通讯作者：
Sefcik, Jan
中科院分区：
文献类型：
--
作者：
McKinstry, Colin;Cussen, Edmund J.;Sefcik, Jan
金属有机框架（MOFs）是具有大表面积和内部体积的材料，这导致了许多有用的性能，如催化，分离和气体储存。然而，MOFs在大规模生产方面具有挑战性，这对成为当前技术的真正可行的替代品造成了障碍。作为迈向工业规模生产的第一步，我们在这里展示了使用乙醇作为溶剂的高质量HKUST-1的第一个可扩展的连续合成，从而产生了一个更绿色和潜在的更经济的过程（因为溶剂不会分解，因此可以回收）。我们还表明，微波加热可用于连续生产HKUST-1，在时间尺度上比传统加热快几个数量级。我们展示了一种新的微波辅助合成HKUST-1的方法，基于微波辐射的循环回路，该方法在批量和连续条件下都是可扩展的，并且允许独立控制微波辐射制度和总反应时间。使用微波加热连续生产HKUST-1使STY达到400，000 kg m（3）d（1），这高于迄今为止报道的任何生产率，即使使用优选的高产溶剂DMF，也是HKUST-1在“仅乙醇”系统中迄今报道的最高生产率的17倍。(C)2017作者由爱思唯尔公司出版
Metal Organic Frameworks (MOFs) are materials with large surface areas and internal volumes, which result in a number of useful properties for applications such as catalysis, separations and gas storage. However, MOFs are challenging to produce at a large scale creating a barrier to becoming truly viable alternatives to current technologies. As a first step towards industrial scale manufacture, we demonstrate here the first scalable, continuous synthesis of high-quality HKUST-1 using ethanol as the solvent, resulting in a greener and potentially much more economical process (as solvent does not decompose and thus can be recycled). We also show that microwave heating can be used to produce HKUST-1 continuously, in timescales several orders of magnitude faster than by conventional heating. We demonstrate a novel approach to microwave assisted synthesis of HKUST-1, based on a recycle loop with microwave irradiation, which is scalable under both batch and continuous conditions and allows an independent control of microwave irradiation regime and the overall reaction time. The use of microwave heating for continuous production of HKUST-1 enabled STY of 400,000 kg m(3) d(1), which is higher than any production rates reported to date, even when using the preferred high yield solvent, DMF, and is 17 times more than the highest production rates reported to date for HKUST-1 in 'ethanol-only' systems. (C) 2017 The Authors. Published by Elsevier B.V.