Passive vapor generation systems combining interfacial solar heating and vaporization enthalpy recycling enable high-efficient low-cost desalination.

The application of traditional phase change materials (PCMs) in electronic thermal management is limited by their enthalpies. In this work, we adopt sorbents and their desorption processes to achieve efficient thermal management. The sorbents with high cyclic water loadings, such as MIL-101(Cr), significantly outperforms the traditional PCMs, by virtue of their high desorption heat during the temperatureinduced desorption process.

Traditional moisture removal technologies (for example, cooling condensation or desiccant dehumidification) come with inherent defects of energy efficiency and are too bulky and complex for small-space humidity-control applications. In this work, using the advantages of commercial thermoelectric coolers and solid desiccant materials, we fabricated a solid-state, scalable ''humidity pump'' that can efficiently transfer the moisture in air from the low-humidity space to the highhumidity space.

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