Heat capacity and absolute standard entropy of Sr(BH4)2
Abstract Strontium boranate (Sr(BH 4 ) 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(BH 4 ) 2 using a wet chemical metathesis reaction. Subsequent to this, the heat capacity of Sr(BH 4 ) 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 .
Authors
- Franziska Habermann (ORCID: https://orcid.org/0009-0008-4040-3257)
- Florian Mertens (ORCID: https://orcid.org/0000-0003-1387-1318)
- Bastian Hansel
- Bianca Störr (ORCID: https://orcid.org/0009-0007-2277-687X)
- Martin Bertau (ORCID: https://orcid.org/0000-0003-1236-1164)
- Roman Gumeniuk (ORCID: https://orcid.org/0000-0002-5003-620X)
- Konrad Burkmann (ORCID: https://orcid.org/0009-0007-2604-4887)
- K. Bohmhammel
- Jürgen Seidel
- Angus Demmer
Institutions
- TU Bergakademie Freiberg (DE)
Publication Details
- Journal
- Journal of Thermal Analysis and Calorimetry
- Published
- 2025-02-28
- DOI
- https://doi.org/10.1007/s10973-025-14085-z
- Citations
- 4
- Primary Topic
- Hydrogen Storage and Materials
- Type
- article
- Field-Weighted Citation Impact
- 2.07
Funders
- Deutsche Forschungsgemeinschaft
- Freistaat Sachsen
- Technische Universität Bergakademie Freiberg