Reaction Calorimetry for Liquid Organic Hydrogen Carrier Kinetics and Thermodynamics
Category
Characterization Tools
Laboratory
Pacific Northwest National Laboratory (PNNL)
Capability Expert(s)
Abhi Karkamkar ([email protected]), Tom Autrey ([email protected])
Description
C-80 Calvet calorimeter with reversal mixing mechanism. The reaction cells are made of stainless steel with volume of 8 cc and can be coupled with pressure transducer or RGA.
PNNL has a C-80 Calvet calorimeter to measure heat of reaction of solid-liquid, solid-liquid-gas, and liquid-liquid-gas reactions. Reaction calorimetry can be used to measure enthalpy of hydrogenation, dehydrogenation, and catalytic reactions of hydrogen uptake and release as a function of temperature (25°C to 200°C) and pressure (1 to 100 bar) by liquid organic hydrogen carriers under isobaric conditions. Under reaction conditions hydrogen purity can be analyzed by a residual gas analyzer (RGA). Inert atmosphere (nitrogen, argon, helium) is available for loading calorimetry cells.
Status
Currently available for use in collaboration with HyMARC.
References
- G. Chen, L. N. Zakharov, M. E. Bowden, A. J. Karkamkar, S. M. Whittemore, E. B. Garner, T. C. Mikulas, D. A. Dixon, T. Autrey, and S.-Y. Liu, "Bis-BN Cyclohexane: A Remarkably Kinetically Stable Chemical Hydrogen Storage Material," Journal of the American Chemical Society 137, no. 1 (2015): 134–137. doi:10.1021/ja511766p.
- A. Karkamkar, K. Parab, D. M. Camaioni, D. Neiner, H. Cho, T. K. Nielsen, and T. A. Autrey, "A thermodynamic and kinetic study of the heterolytic activation of hydrogen by frustrated borane-amine Lewis pairs," Dalton Transactions 42, no. 3 (2013): 615–619.
