Abstract
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.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 28139-28143 |
| Number of pages | 5 |
| Journal | ACS Applied Materials and Interfaces |
| Volume | 9 |
| Issue number | 34 |
| DOIs | |
| State | Published - Aug 30 2017 |
Funding
This work was supported by AFOSR FA9550-15-1-0247, NSF CCF-1422489 and made use of Northwestern University Micro/Nano Fabrication Facility (NUFAB) and the J.B. Cohen X-ray Diffraction Facility, and the EPIC facility of Northwestern University’s NUANCE Center, which are supported by the MRSEC program of the National Science Foundation (DMR-1121262) at the Materials Research Center of Northwestern University, the International Institute for Nanotechnology (IIN), the Keck Foundation, and the State of Illinois, and the Soft and Hybrid Nanotechnology Experimental (SHyNE) Resource (NSF NNCI-1542205). C.O.A. is an NSF Graduate Research Fellow (Grant DGE-1324585). J.T.H. and O.K.F. acknowledge support from the U.S. Department of Energy, Office of Science (Grant DE-FG02-08ER15967). S.T.N. acknowledges support from DTRA (HDTRA1-14-1-0014).
Keywords
- ZIF-8
- gas storage
- metal organic framework
- thermal conductivity
- thin film
- zeolitic imidazolate framework
ASJC Scopus subject areas
- General Materials Science