Heat capacity and absolute standard entropy of Sr(BH4)2
Year: 2025
Type: article
Abstract: Strontium boranate (Sr(BH4)2) has garnered significant interest within the hydrogen storage community due to its relatively high hydrogen content of approximately 6%. The design of reactive hydride mixtures for reversible hydrogen storage requires the availability of reliable thermodynamic data. This article details the synthesis of Sr(BH4)2 using a wet chemical metathesis reaction. Subsequent to this, the heat capacity of Sr(BH4)2 was determined between 1.8 K and 550 K using two different calorimetric methods. Utilizing these values, the absolute standard entropy at 298.15 K was calculated to be S°(298.15 K) = (147.1 ± 3.7) J mol−1 K−1.
Institution: TU Bergakademie Freiberg
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,790
OpenAlex ID: W4408050110