Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 9, Issue 34, Pages 28139-28143Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.7b06662
Keywords
metal organic framework; zeolitic imidazolate framework; ZIP-8; thin film; thermal conductivity; gas storage
Funding
- AFOSR [FA9550-15-1-0247]
- NSF [CCF-1422489, DGE-1324585]
- MRSEC program of the National Science Foundation at the Materials Research Center of Northwestern University [DMR-1121262]
- International Institute for Nanotechnology (IIN)
- Keck Foundation
- State of Illinois
- Soft and Hybrid Nanotechnology Experimental (SHyNE) Resource (NSF) [NNCI-1542205]
- U.S. Department of Energy, Office of Science [DE-FG02-08ER15967]
- DTRA [HDTRA1-14-1-0014]
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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 3co technique at different partial pressures in perfluorohexane, nitrogen, air, and vacuum ambients at 300 K. In contrast to theoretical prediction, the thermal conductivity kappa = 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.
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