Giant barocaloric effect in the ferroic organic-inorganic hybrid [TPrA][Mn(dca)(3)] perovskite under easily accessible pressures.
Giant barocaloric effect in the ferroic organic-inorganic hybrid [TPrA][Mn(dca)(3)] perovskite under easily accessible pressures.
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DOI：
10.1038/ncomms15715
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发表时间：
2017-06-01
影响因子：
16.6
通讯作者：
Señarís-Rodríguez MA
中科院分区：
文献类型：
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作者：
Bermúdez-García JM;Sánchez-Andújar M;Castro-García S;López-Beceiro J;Artiaga R;Señarís-Rodríguez MA
有机-无机杂化化合物家族的迅速发展引起了人们越来越多的关注，因为它的一些成员表现出了显著的功能性质(磁性、多铁性、光电子性、光伏)。在这里，我们表明，这些化合物也可以通过在钙钛矿[TPrA][Mn(DCA)3](TPrA：四丙基铵，DCA：二氰胺)中在室温附近表现出巨大的压热效应，在迄今尚未开发的固态冷却领域中具有巨大的潜力。此外，我们认为，这不会是这种非凡行为的孤立例子，因为许多其他有机-无机杂化材料(金属-有机骨架和配位聚合物)显示出基本成分，显示出对压力和其他外部刺激非常敏感的大卡路里效应。这些发现为有机-无机杂化和固态冷却技术开辟了新的视野和巨大的机遇。设计机械和化学上坚固耐用的防液表面仍然是一个长期的挑战。在这里，Wang和他的同事们报告了一种微流控乳液模板策略，以制备具有非凡耐用性的生物启发的全疏水多孔膜。
The fast growing family of organic–inorganic hybrid compounds has recently been attracting increased attention owing to the remarkable functional properties (magnetic, multiferroic, optoelectronic, photovoltaic) displayed by some of its members. Here we show that these compounds can also have great potential in the until now unexplored field of solid-state cooling by presenting giant barocaloric effects near room temperature already under easily accessible pressures in the hybrid perovskite [TPrA][Mn(dca)3] (TPrA: tetrapropylammonium, dca: dicyanamide). Moreover, we propose that this will not be an isolated example for such an extraordinary behaviour as many other organic–inorganic hybrids (metal-organic frameworks and coordination polymers) exhibit the basic ingredients to display large caloric effects which can be very sensitive to pressure and other external stimuli. These findings open up new horizons and great opportunities for both organic–inorganic hybrids and for solid-state cooling technologies. Designing mechanically and chemically robust liquid-repellent surfaces remains a long-standing challenge. Here, Wang and colleagues report a microfluidic emulsion templating strategy to fabricate bioinspired omniphobic porous membranes with remarkable durability.