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首页> 外文期刊>RSC Advances >Myristic acid-hybridized diatomite composite as a shape-stabilized phase change material for thermal energy storage
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Myristic acid-hybridized diatomite composite as a shape-stabilized phase change material for thermal energy storage

机译：肉豆蔻酸-杂交硅藻土复合材料，用于储热的形状稳定相变材料

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This study was aimed at developing a shape-stabilized composite phase-change material (PCM) for thermal energy storage. Raw diatomite was first purified via thermal treatment and acid-leaching to enhance the adsorption capacity of the PCM. The composite PCM was fabricated using myristic acid (MA) to hybridize diatomite via the vacuum impregnation method. Activated carbon (AC) was added to enhance the stability and conductivity of the composite PCM, and it could also be used to prevent the leakage of MA from the supporting materials. The maximum loading capacity and melting enthalpy of MA/H-diatomite-2 reached 72% and 124.3 J g?1, respectively, and its thermal conductivity was as high as 0.58 W (m K)?1. Note that the introduction of AC obviously reduced the melting and freezing periods and enhanced the heat transfer of the composite PCM. Furthermore, MA/H-diatomite-2 exhibits excellent thermal reliability after 200 cycles and could be potentially used in thermal energy storage systems.
机译：这项研究旨在开发一种形状稳定的复合相变材料（PCM），用于热能存储。首先通过热处理和酸浸 纯化原始的硅藻土，以增强PCM的吸附能力。利用肉豆蔻酸（MA）通过真空浸渍法使硅藻土杂化。添加活性炭（AC）可以增强复合材料PCM的稳定性和导电性，还可以用于防止MA从支撑材料中泄漏。 MA / H-硅藻土-2的最大负载量和熔融焓分别达到72％和124.3 J g ？1 ，其导热系数高达0.58 W（m K） ？1 。请注意，AC的引入明显减少了熔化和冻结的时间，并增强了复合PCM的热传递。此外，MA / H-硅藻土-2在200次循环后表现出出色的热可靠性，可潜在地用于热能存储系统中。

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