Determination of solute properties by solvent vapor pressure measurements. II. Simple electrolytes, polyelectrolytes, and complex ions

Amdur, S.

doi:10.1063/1.431640

Cited by 1 publication

(2 citation statements)

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“…4− ions 27 and hydrogel framework (Figure S3) on the saturated vapor pressure is negligible. Within the hydrogel, the concentration of Li + and Br − ions in the sample was 5.4 M, which corresponds to a saturated vapor pressure of 2.22 kPa.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…The explanation for the structural stability is the presence of Li + and Br – , which decrease the saturated vapor pressure of water inside the hydrogel. The effect of Fe(CN) 6 3– and Fe(CN) 6 4– ions and hydrogel framework (Figure S3) on the saturated vapor pressure is negligible. Within the hydrogel, the concentration of Li + and Br – ions in the sample was 5.4 M, which corresponds to a saturated vapor pressure of 2.22 kPa .…”

Section: Resultsmentioning

confidence: 99%

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Thermogalvanic Hydrogel for Synchronous Evaporative Cooling and Low-Grade Heat Energy Harvesting

et al. 2020

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Efficient heat removal and recovery are two conflicting processes that are difficult to achieve simultaneously. Here, in this work, we pave a new way to achieve this through the use of a smart thermogalvanic hydrogel film, in which the ions and water undergo two separate thermodynamic cycles: thermogalvanic reaction and water-to-vapor phase transition. When the hydrogel is attached to a heat source, it can achieve efficient evaporative cooling while simultaneously converting a portion of the waste heat into electricity. Moreover, the hydrogel can absorb water from the surrounding air to regenerate its water content later on. This reversibility can be finely designed. As an applicative demonstration, the hydrogel film with a thickness of 2 mm was attached to a cell phone battery while operating. It successfully decreased the temperature of the battery by 20 °C and retrieved electricity of 5 μW at the discharging rate of 2.2 C.

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Section: ■ Results and Discussionmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%