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Updated: Oct 15, 2025

Preparation of Carbon Nanosheets at Room Temperature
Published on: March 8, 2016
Thermophysical Properties of NH3/IL+ Carbon Nanomaterial Solutions
Gabriela Huminic1, Angel Huminic1
1Mechanical Engineering Department, Transilvania University of Brasov, 29, Bulevardul Eroilor, 500036 Brasov, Romania.
Abstract:
This study proposes the use of new working fluids, refrigerant/IL+ carbon nanomaterials (CNMs), in absorption systems as an alternative to conventional working fluids. In this regard, the thermophysical properties of ammonia and carbon nanomaterials (graphene and single-wall carbon nanotubes) dispersed into [BMIM]BF4 ionic liquid are theoretically investigated. The thermophysical properties of NH3/IL+ CNMs solutions are computed for weight fractions of NH3 in the range of 0.018-0.404 and temperatures between 293 and 388 K. In addition, two weight fractions of CNMs are considered: 0.005 and 0.01, respectively. Our results indicate that by adding a small amount of nanomaterial to the ionic liquid, the solution's thermal conductivity is enhanced, while its viscosity and specific heat are reduced. Correlations of the thermal conductivity, viscosity, specific heat, and density of the NH3/IL+ CNMs solutions are proposed.
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