Dy(OH) 3 : a paramagnetic magnetocaloric material for hydrogen liquefaction
Dy(OH) 3 : a paramagnetic magnetocaloric material for hydrogen liquefaction
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Dy(OH) 3 ：用于氢液化的顺磁磁热材料
DOI：
10.1039/d3ta05358j
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发表时间：
2023
影响因子：
11.9
通讯作者：
Doheny P
中科院分区：
文献类型：
--
作者：
Doheny P
研究了一系列Ln（OH）_3（Ln = Gd-Er）配位聚合物材料的磁性，评价了它们作为磁热材料的潜力。Dy（OH）3在12 K时的磁熵变为33.4 J kg−1 K−1，磁场变化为5-0 T。进一步的磁热容分析表明，在22.7K时，最大绝热温度变化为8.4K。Dy（OH）3获得的有利的磁热参数证明了其作为用于氢液化的磁冷却材料的有效性，因为氢的沸点与Dy（OH）3对于高场变化的峰值磁热性能的温度很好地对准。
The magnetic properties of a series of Ln(OH)3 (where Ln = Gd–Er) coordination polymer materials have been examined to evaluate their potential as magnetocaloric materials. Dy(OH)3 was found to exhibit an impressive magnetic entropy change of 33.4 J kg−1 K−1 at 12 K for a magnetic field change of 5-0 T, based on magnetisation measurements. Further magnetic heat capacity analysis indicated a maximum adiabatic temperature change of 8.4 K at 22.7 K. The favourable magnetocaloric parameters obtained for Dy(OH)3 demonstrated its effectiveness to act as a magnetic cooling material for hydrogen liquefaction, since the boiling point of hydrogen aligns well with the temperature for peak magnetocaloric performance of Dy(OH)3 for high field changes.