Study of the thermal decomposition of MSO4 (M = Zn(II), Cd(II), Hg(II)) in a sodium nitrate—potassium nitrate melt

Singh, N. B.; Pandey, S.P.

doi:10.1016/0040-6031(85)87004-0

Cited by 4 publications

(1 citation statement)

References 5 publications

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“…The performance of the CPCMs can degrade under the action of heat beyond their normal temperature ranges, and this degradation can limit their commercial viability and narrow down the range of application . The studies conducted by Freeman et al, Kramer et al., and Singh et al reported that a single-component molten salt material decomposes at a specific range of temperatures, and this decomposition can release toxic gases that pollute the environment. Ruiz et al analyzed the thermal decomposition of LiNO 3 and found that Li 2 O was formed at 485 °C and Li 2 O 2 , at 650 °C.…”

Section: Introductionmentioning

confidence: 99%

Thermal Stability of Nitrate-Based Form-Stable Thermal Storage Materials with In Situ Optical Monitoring

Huang

Tian

et al. 2020

Ind. Eng. Chem. Res.

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Thermal energy storage (TES) is a developing technology with promising applications in renewable energy and waste heat recovery. In this study, we investigate the thermal stability of recently developed nitrate-based form-stable TES materials. Laser-induced breakdown spectroscopy (LIBS) is applied to monitor the release of the Na and K elements in nitrates through chemical decomposition exposing to a simulated high heat flow field, while morphology and thermal performance are characterized by typical ex situ methods. The results reveal that the compatibility between ceramic skeleton materials (SiO 2 and MgO) and phase-change materials (NaNO 3 and KNO 3 ) plays an important role in the thermal performance of composite phase-change materials (CPCMs). A one-step thermal decomposition reaction of SS (sodium nitrate and silicon dioxide composite) and PS (potassium nitrate and silicon dioxide composite) and a two-step decomposition of SM (sodium nitrate and magnesium oxide composite) and PM (potassium nitrate and magnesium oxide composite) are demonstrated by synchronous thermal analysis (STA). The onset temperature of decomposition (OTD) obtained from in situ LIBS measurements is significantly lower than that obtained from STA.

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