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https://doi.org/10.1016/j.rser.2009.05.008

has been cited by the following article:

• TITLE: Evaluation of SrBr2 Hydration Reaction Rate with Repeated Cycling

  AUTHORS: Takehiro Esaki, Yuichi Sugai

  KEYWORDS: SrBr2 Hydration, Repetition Cycle, The Coefficient of Particle Diffusion

  JOURNAL NAME: Journal of Materials Science and Chemical Engineering, Vol.10 No.2, February 28, 2022

  ABSTRACT: In this study, we evaluated the SrBr2 hydration reaction rate on repeated cycling. It was estimated that hydrated SrBr2 particles were expanded by hydration and condensed to form secondary particles; thus, the hydration reaction was reduced by repeated cycles. Using volumetric methods, we examined the effect of repetition on the reaction rate for 900 cycles during hydration and dehydration and analyzed the reaction rate using the unreacted core-shell model. From the experimental and calculated results, we confirmed that reaction rate decreased and the sample particles formed secondary particles after 900 repeated cycles. By analyzing the unreacted core-shell model, we found that the coefficient of H2O diffusion in the particles exponentially decreased with increasing repeated cycles. The value of the diffusion coefficient after 900 cycles was five times lower than that of the first cycle. To achieve stable repeated hydration cycles, technology to control the formation of secondary particles must be investigated.