ACS Applied Materials & Interfaces
ACS Applied Materials & Interfaces
5 years ago

Thermal Conductivity of ZIF-8 Thin-Film under Ambient Gas Pressure

Thermal Conductivity of ZIF-8 Thin-Film under Ambient Gas Pressure
Omar K. Farha, SonBinh T. Nguyen, Boya Cui, Matthew Grayson, Joseph T. Hupp, Yijun Liao, Cornelius O. Audu
Thermal conductivity is a crucial parameter for managing exothermal gas adsorption in metal organic frameworks (MOFs), but experimental studies have been limited. In this work, the thermal conductivity of a zeolitic imidazolate framework ZIF-8 was experimentally determined on thin films using the 3ω technique at different partial pressures in perfluorohexane, nitrogen, air, and vacuum ambients at 300 K. In contrast to theoretical prediction, the thermal conductivity κ = 0.326 ± 0.002 W/m K was approximately independent of ambient gas species and pressure from atmospheric pressure to vacuum. This work introduces a useful approach for probing MOF thermal conductivity under gas adsorption.

Publisher URL: http://dx.doi.org/10.1021/acsami.7b06662

DOI: 10.1021/acsami.7b06662

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